Keysight Technologies X Series Service Manual
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Keysight Technologies X Series Service Manual

Exa signal analyzer, 9 khz - 3.6/7/13.6/26.5/32/44 ghz
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X-Series Signal Analyzers
N9010A EXA Signal Analyzer
This manual provides documentation for the following analyzers:
N9010A Option 503 (9 kHz – 3.6 GHz)
N9010A Option 507 (9 kHz – 7 GHz)
N9010A Option 513 (9 kHz – 13.6 GHz)
N9010A Option 526 (9 kHz – 26.5 GHz)
N9010A Option 532 (9 kHz - 32 GHz)
N9010A Option 544 (9 kHz - 44 GHz)
Notice: This document contains references to Agilent.
Please note that Agilent's Test and Measurement
business has become Keysight Technologies. For
more information, go to www.keysight.com.
Service Guide

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  • Page 1 N9010A Option 532 (9 kHz - 32 GHz) N9010A Option 544 (9 kHz - 44 GHz) Notice: This document contains references to Agilent. Please note that Agilent’s Test and Measurement business has become Keysight Technologies. For more information, go to www.keysight.com. Service Guide...

  • Page 2: Safety Notices

    COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH government requirements THESE TERMS, THE WARRANTY beyond those set forth in the © Keysight Technologies, Inc. TERMS IN THE SEPARATE EULA shall apply, except to the 2008-2017 AGREEMENT WILL CONTROL. extent that those terms, rights, or...
  • Page 3 Where to Find the Latest Information Documentation is updated periodically. For the latest information about this instrument, including firmware upgrades, application information, and product information, click the website link below. http://www.keysight.com/find/n9010a To receive the latest updates by email, subscribe to Keysight Email Updates at the following URL: http://www.keysight.com/find/MyKeysight Information on preventing instrument damage can be found at: www.keysight.com/find/PreventingInstrumentRepair...

  • Page 5: Table Of Contents

    Contacting Keysight Technologies ........
  • Page 6 Contents Yellow Standby LED Does Not Illuminate ..........55 Green Power On LED Does Not Illuminate .
  • Page 7 Contents Condition Errors 301 to 399, Uncalibrated Integrity ........129 Condition Errors 401 to 499, Power .
  • Page 8 Contents Preselector Tune Output ............250 Verifying Microwave Preselector Bypass Switch (Option MPB) .
  • Page 9 Contents Front Panel Interface ............332 Graphics Controller .
  • Page 10 Contents RF Highband Path #1 Block Diagram ..........366 RF Highband Path #2 Block Diagram .
  • Page 11 Contents Instrument Outer Case ............. 467 Standard Instrument .
  • Page 12 Contents Replacement ..............538 CPU Assembly .
  • Page 13 Contents Displayed Average Noise Level (DANL) ..........636 Procedure .
  • Page 14 Contents...

  • Page 15: Overview

    Before You Start Troubleshooting on page 21 ESD Information on page 23 Service Equipment You Will Need on page 25 After an Instrument Repair on page 41 Contacting Keysight Technologies on page 42 How to Return Your Instrument for Service on page 46...

  • Page 16: Keysight Exa Signal Analyzer Overview

    Overview Keysight EXA Signal Analyzer Overview Keysight EXA Signal Analyzer Overview The Keysight EXA signal analyzer measures and monitors complex RF and microwave signals. The analyzer integrates traditional spectrum measurements with advanced vector signal analysis to optimize speed, accuracy, and dynamic range. The EXA has Windows built in as the operating system, which expands the usability of the analyzer.

  • Page 17: Instrument Option Descriptions

    Overview Instrument Option Descriptions Instrument Option Descriptions The EXA signal analyzer has a variety of options and measurement applications that can be installed depending on your application. These options and measurement applications can be purchased and installed at the time of sale or as a post-sale upgrade.

  • Page 18: Signal Analyzer Accessories

    Signal Analyzer Accessories Signal Analyzer Accessories A number of accessories are available from Keysight Technologies to help you configure your analyzer for your specific applications. They can be ordered through your local Keysight Sales and Service Office and are listed below.

  • Page 19: 50 Ohm Load

    Overview Signal Analyzer Accessories 50 Ohm Load The Keysight 909 series loads come in several models and options providing a variety of frequency ranges and VSWRs. Also, they are available in either 50 ohm or 75 Ohm. Some examples include the: 909A: DC to 18 GHz 909C: DC to 2 GHz 909D: DC to 26.5 GHz...

  • Page 20: Rf And Transient Limiters

    Overview Signal Analyzer Accessories — The Keysight 85905A CATV 75 ohm preamplifier provides a minimum of 18 dB gain from 45 MHz to 1 GHz. (Power is supplied by the probe power output of the analyzer.) — The 11909A low noise preamplifier provides a minimum of 32 dB gain from 9 kHz to 1 GHz and a typical noise figure of 1.8 dB.

  • Page 21: Before You Start Troubleshooting

    Overview Before You Start Troubleshooting Before You Start Troubleshooting Before troubleshooting, complete the following tasks: — Familiarize yourself with the safety symbols marked on the instrument and read the general safety considerations in the front of this guide. — Read the ESD information below. —...
  • Page 22 Overview Before You Start Troubleshooting Always use the three-prong ac power cord supplied with this product. Failure to ensure adequate earth grounding by not using this cord may cause product damage. This instrument has an autoranging line voltage input; be sure the supply voltage is within the specified range.

  • Page 23: Esd Information

    Overview ESD Information ESD Information Protection from Electrostatic Discharge Electrostatic discharge (ESD) can damage or destroy electronic components. All work on electronic assemblies should be performed at a static-safe workstation. Figure 1-1 shows an example of a static-safe workstation using two types of ESD protection: —...

  • Page 24: Handling Of Electronic Components And Esd

    Overview ESD Information Handling of Electronic Components and ESD The possibility of unseen damage caused by ESD is present whenever components are transported, stored, or used. The risk of ESD damage can be greatly reduced by paying close attention to how all components are handled. —...

  • Page 25: Service Equipment You Will Need

    Overview Service Equipment You Will Need Service Equipment You Will Need There are certain things that will be required to troubleshoot, adjust, and test the EXA Signal Analyzer. They include the following: — Calibration Application Software — Front End Controller Troubleshooting Kit —...

  • Page 26: Front End Controller Troubleshooting Kit

    Overview Service Equipment You Will Need Front End Controller Troubleshooting Kit The Front End Troubleshooting kit contains a PC board, required cables, and installation instructions to verify the switch control logic from the A15 Front End Control board to the lower level front end components is correct. Oftentimes when troubleshooting an RF front end problem, the logic needs to be verified before one of the front end components is changed.

  • Page 27: Usb Keyboard And Mouse

    Overview Service Equipment You Will Need USB Keyboard and Mouse A USB keyboard and mouse will be needed to accomplish many of the different troubleshooting tasks, as well as updating the instrument software. Any standard USB keyboard and mouse should work, but you can use the optional keyboard and mouse sold for the instrument.

  • Page 28: Required Test Equipment List

    Overview Service Equipment You Will Need Required Test Equipment List The following table identifies the equipment recommended for troubleshooting, adjusting, and verifying the performance of the instrument. Only the recommended and alternate equipment is compatible with the performance verification testing. Some tests can use various models of a particular equipment type.
  • Page 29 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model Low Noise Frequency: 50 MHz to 1.0 GHz E8257D 8663A A, P, T Signal Generator Harmonics: < -30 dBc ≤ +13 dBm (Options UNR, (one PSG may be used Spectral Purity SSB Phase Noise @ 1 GHz:...
  • Page 30 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model Power Meter Dual Channel N1914A E4419A/B A, P Instrumentation Accuracy: ± 0.5% N1912A Power Reference Accuracy: ± 0.6% Compatible with 8480 series power sensors dB relative mode RF Power Sensor Frequency Range: 100 kHz to 3.6 GHz...
  • Page 31 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model High Sensitivity Frequency Range: 50 MHz to 50 GHz 8487D A, P Millimeter Power Sensor Amplitude Range: −70 to −20 dBm (for Options >...
  • Page 32 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model 1 dB Range: 0 to 9 dB 8494G 8494H Step Attenuator Accuracy: (Option 001, (Option 001, H50) H50) Characterized by standards lab VSWR: at 50 MHz: ≤...
  • Page 33 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model Terminations Type-N (m) Frequency: 10 kHz to 18 GHz 909A P, T (for Option 503, 507, VSWR: ≤ 1.05:1 (Option 012) 513) 2.4 mm (f) 50 Ω...
  • Page 34 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model Directional Coupler Frequency 2 GHz to 20 GHz 87300B Directivity > 16 dB Transmission arm loss: < 1.5 dB (nominal) Coupled Arm Loss: ~10 dB (nominal) VSWR: ≤...
  • Page 35 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model Filters 300 MHz Low Pass Cutoff Frequency: 300 MHz Telonic 0955-0455 (2 Required) Rejection at > 435 MHz: > 45 dB Berkeley VSWR: ≤...
  • Page 36 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model Type-N (m) to 3.5 mm (f) Frequency: DC to 18 GHz 1250-1744 (2 Required) VSWR: ≤ 1.08:1 3.5 mm (f) to Type-N (f) Frequency: DC to 18 GHz 1250-1745 A, P...
  • Page 37 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Al ternative Model Model 1 GHz Notch Filter Center Frequency: 1.0001 GHz Trilithic (for alternate Phase CFN-2-1000.1 Noise setup) a. Keysight model numbers unless otherwise noted. b.
  • Page 38 Overview Service Equipment You Will Need g. 8491A Option H33 is a fixed attenuator which has been characterized to have a VSWR ≤ 1.05:1 at 50 MHz. A VSWR of 1.05:1 is recommended to test Input Attenuator Switching Uncertainty, Display Scale Fidelity, and Absolute Amplitude Accuracy performance tests.
  • Page 39 Overview Service Equipment You Will Need Step Attenuator Loss Characterization The step attenuator combination should have each attenuator setting characterized by a metrology lab at 50 MHz. The following tables show which sections of the 10 dB and 1 dB step attenuators are utilized for each attenuator setting.
  • Page 40 Overview Service Equipment You Will Need Table 1-3 10 dB Step Attenuator Nominal Attenuation (dB) Attenuator Section Allowable Uncertainty (dB) (10 dB) (20 dB) (40 dB) (40 dB) < 0.035 < 0.040 a. TME requires that Section 3 be characterized. Keysight N9010A EXA Service Guide...

  • Page 41: After An Instrument Repair

    Overview After an Instrument Repair After an Instrument Repair If any instrument assemblies have been repaired or replaced, perform the related adjustments and performance verification tests. These tests are done using the N7814A Keysight X-Series Signal Analyzer Calibration Application Software. Refer to Chapter 16, “Post-Repair Procedures”...

  • Page 42: Contacting Keysight Technologies

    Overview Contacting Keysight Technologies Contacting Keysight Technologies If you have a problem with your instrument, see Chapter 2, “Boot Up and Initialization Troubleshooting”. This section contains a checklist that will help identify some of the most common problems. There is also support on the world-wide web. The address is: http://www.keysight.com/find/exa_support...
  • Page 43 Overview Contacting Keysight Technologies Table 1-4 Contacting Keysight www.keysight.com/find/contactus Online assistance: Americas Country Phone Number Canada (877) 894 4414 Brazil 55 11 3351 7010 Mexico 001 800 254 2440 United States 1 800 829-4444 Asia Pacific Country Phone Number Australia...
  • Page 44 Overview Contacting Keysight Technologies Europe and Middle Country Phone Number Luxembourg +32 800 58580 Netherlands 0800 0233200 Russia 8800 5009286 Spain 0800 000154 Sweden 0200 882255 Switzerland 0800 805353 Opt. 1 (DE) Opt. 2 (FR) Opt. 3 (IT) United Kingdom...

  • Page 45: Instrument Serial Numbers

    Overview Contacting Keysight Technologies Instrument Serial Numbers Keysight makes frequent improvements to its products enhancing performance, usability, or reliability. Keysight service personnel have access to complete records of design changes to each type of instrument, based on the instrument’s serial number and option designation.

  • Page 46: How To Return Your Instrument For Service

    Overview How to Return Your Instrument for Service How to Return Your Instrument for Service Service Order Number If an instrument is being returned to Keysight for servicing, the phone numbers are mentioned in Table 1-4, “Contacting Keysight,” on page 43.

  • Page 47: Other Packaging

    Overview How to Return Your Instrument for Service Other Packaging Instrument damage can result from using packaging materials other than those specified. Never use styrene pellets in any shape as packaging materials. They do not adequately cushion the equipment or prevent it from shifting in the carton.
  • Page 48 Overview How to Return Your Instrument for Service Keysight N9010A EXA Service Guide...

  • Page 49: Boot Up And Initialization Troubleshooting

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 2 Boot Up and Initialization Troubleshooting What You Will Find in This Chapter This chapter provides information that is useful when starting to troubleshoot a spectrum analyzer. It includes procedures for troubleshooting common failures and provides information on isolating problems in the analyzer.

  • Page 50: Check The Basics

    Boot Up and Initialization Troubleshooting Check the Basics Check the Basics Before calling Keysight Technologies or returning the instrument for service, please make the following checks: 1. Is there power at the power outlet? At the power receptacle on the instrument? 2.

  • Page 51: Instrument Boot Up Process

    Boot Up and Initialization Troubleshooting Instrument Boot Up Process Instrument Boot Up Process This section describes the signal analyzer boot up process from initial AC power to a normal analyzer sweep. The boot process time from start to finish will take 3 to 4 minutes. This boot time will vary slightly depending on the analyzer hardware configuration, installed options and the number of measurement applications.

  • Page 52: Typical Instrument Boot-Up Process Flow

    Boot Up and Initialization Troubleshooting Instrument Boot Up Process Typical instrument boot-up process flow 1. Plug in the AC power cord from a known good AC power source into the rear panel of the analyzer. 2. The yellow standby LED illuminates on the analyzer front panel to the left-hand side of the On/Off button.
  • Page 53 “CPU/Disk Drive Troubleshooting”, on page 329 in this manual. 8. The Agilent/Keysight Technologies logo is displayed in white font on a blue background while Windows finishes loading user preferences. This can take up to 4 minutes. If this does not occur refer to the “Instrument...
  • Page 54 Boot Up and Initialization Troubleshooting Instrument Boot Up Process 11.If any of the initial alignments fail, check the alignment history for troubleshooting hints. The instrument alignment history can be found at: E:\AlignDataStorage\AlignmentHistory.txt Look for any failed status for the various internal hardware items listed in this file.

  • Page 55: Potential Problems During Boot Process

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Potential Problems During Boot Process This section describes potential problems that may occur if there is an internal hardware issue that prohibits the EXA from completing a full boot up to the spectrum analyzer application.
  • Page 56 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Figure 2-3 A7 Midplane Board +5.1V LED All DC power supplies come from the A6 Power Supply assembly. However, the most convenient measurement location for all the DC supplies is the A7 Midplane. All power supply LED's are accessible once the instrument cover has been removed.

  • Page 57: Green Power On Led Does Not Illuminate

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Green Power On LED Does Not Illuminate Control of the green front panel Power On LED comes from the A4 CPU board assembly. This signal is routed through the A7 Midplane board and is then buffered on the A8 Motherboard before being sent to the A1A2 Front Panel Interface board through W1.
  • Page 58 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Figure 2-4 A7 Midplane Board - R867 5. While monitoring the voltage at R867, turn the instrument power on by pressing the front panel On/Off button. Does the voltage at R867 measure 0 VDC? If yes: Proceed to step...

  • Page 59: Fan(S) Are Not Operating

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Fan(s) Are Not Operating Control of the instrument fans comes from the A6 Power Supply assembly. This signal is routed from the A6 Power Supply through the A7 Midplane board, where there is a test point and LED to monitor the level, and is then routed to the A8 Motherboard where it is filtered before being sent to the Fans.
  • Page 60 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Replace the A6 Power Supply assembly. Before replacing the power supply, verify the midplane and motherboard interconnects are mechanically secure. Figure 2-5 A7 Midplane Board - Fan LED 6. With the instrument turned off, and the AC power cord removed, remove the Fan Assembly including unplugging both fans from the A8 Motherboard.

  • Page 61: No Agilent/Keysight Splash Screen Displayed

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process No Agilent/Keysight Splash Screen Displayed (Black background with white “Agilent Technologies” text or “Keysight Technologies” text) A problem of not displaying the Agilent/Keysight splash screen could be caused by many different things. It could be due to a down power supply, a processor hardware problem, an instrument boot-up process error, a display section failure, etc.

  • Page 62: Instrument Hangs At The Agilent/Keysight Splash Screen

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Instrument Hangs at the Agilent/Keysight Splash Screen A problem of the instrument hanging at the Agilent/Keysight splash screen could be caused by many different things. It could be due to a down power supply, a processor hardware problem, an instrument boot-up process error, etc.

  • Page 63: Instrument Cannot Completely Load Or Run The Operating System

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Instrument Cannot Completely Load or Run the Operating System A problem of the instrument not loading the operating system can be caused by a few different things. It could be due to a down power supply, a processor hardware problem, an instrument boot-up process error, corrupt hard drive, etc.

  • Page 64: Verify Lcd Backlight Functionality

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Verify LCD Backlight Functionality There are two backlights within the LCD assembly, one across the top and one across the bottom. If only one of the backlights has burnt out, the other will still function.
  • Page 65 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process 6. Refer to Figure 2-6, verify that the +12D VDC power supply is on. Figure 2-6 A7 Midplane Board +12D LED Is the +12D backlight supply voltage LED on? If yes: Proceed to step If no:...
  • Page 66 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Figure 2-7 A1A2 Front Panel Interface Board LCD Backlight Inverter Control Voltages Table 2-1 Expected Backlight Inverter Control Voltage Levels Signal Expected Vol tage Brightness Control 0 to 3 VDC Inverter Enable >6 VDC Inverter Supply...

  • Page 67: Verify Video Signal Path Integrity

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process 10.Are all of the 3 voltage levels within their expected ranges? If yes: Replace the A1A4 LCD Inverter or DC-DC Converter board. If no: Replace the A1A2 Front Panel Interface board. Verify Video Signal Path Integrity The video controller is located on the A4 Processor assembly and is routed to the front panel LCD through a few interconnections.

  • Page 68: Fails An Initial Alignment

    Boot Up and Initialization Troubleshooting Potential Problems During Boot Process If there is a problem with any of these initializations not completing or causing an error message to be displayed refer to the instrument Event Log. This can be accessed by using an external USB keyboard and mouse and selecting Start, Run, enter Eventvwr.exe, and select OK.
  • Page 69 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Table 2-2 Initial Alignments Alignment Description Most Probable Related Hard ware Hard ware Failure AIF LC Wide Prefilter Passband Tuning A2 Analog IF Algorithm Adjusts the LC prefilter centering with the prefilter BW set to about 1.12 MHz.
  • Page 70 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Table 2-2 Initial Alignments Alignment Description Most Probable Related Hard ware Hard ware Failure AIF Step Gain Algorithm A2 Analog IF Measures the relative gain of the IF for high gain (10 dB) versus the low gain (0 dB) paths.
  • Page 71 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Table 2-2 Initial Alignments Alignment Description Most Probable Related Hard ware Hard ware Failure DIF 40 Step Cal Ad justment Alignment Since this is wide band Algorithm alignment done for 40 MHz BW signal Recalled adjustment from calibration file.
  • Page 72 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Table 2-2 Initial Alignments Alignment Description Most Probable Related Hard ware Hard ware Failure High Band Preamp Path System Gain Algorithm A11 Low Band Switch 4800 MHz calibrator on A16 Reference Measures change in signal level with high band preamp turned ON and OFF.

  • Page 73: Signal Level Verification

    Boot Up and Initialization Troubleshooting Signal Level Verification Signal Level Verification Signal Level Problem with Input Frequencies < 3.6 GHz Measure the 50 MHz RF calibrator signal level by pressing Input/Output, RF Calibrator, 50 MHz. Now press Freq, 50 MHz, SPAN, 1 MHz, Peak Search. If the analyzer is functioning correctly in low band, the 50 MHz calibrator level should be −25 dBm ±...

  • Page 74: Signal Level Problem With Input Frequencies > 3.6 Ghz

    Boot Up and Initialization Troubleshooting Signal Level Verification Signal Level Problem with Input Frequencies > 3.6 GHz Measure the 4.8 GHz RF calibrator signal level by pressing Input/Output, {RF Calibrator}, 4.8 GHz. Now press Freq, 4.8 GHz, SPAN, 1 MHz, Peak Search. If the analyzer is functioning correctly in high band, the 4.8 GHz calibrator level should be −28 dBm ±...

  • Page 75: Instrument Messages

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 3 Instrument Messages Introduction The Error and Status messaging system of the Keysight Signal Analyzer reports events and conditions in a consistent fashion, as well as logging and reporting event history.

  • Page 76: Event And Condition Categories

    Instrument Messages Introduction Event and Condition Categories The three categories of severity are described below, for both Events and Conditions. Errors Error messages appear when a requested operation has failed. (For example, “Detector not available”, “File not saved”.) Error messages are often generated during remote operation when an invalid programming command has been entered.

  • Page 77: Event Message Format

    Instrument Messages Introduction Advisories Advisory messages tell the front panel user some useful information. (For example, “File saved successfully” or “Measuring the fundamental”.) Advisory messages appear in the Status Panel at the bottom of the display. The message remains until you press a key, or another message is displayed in its place. Advisory messages are not logged in the error queues.

  • Page 78: Event Queues

    Instrument Messages Introduction Figure 3-1 Error Message Example Event Queues There are several different event queues that are viewed/queried and managed separately. Note that Conditions are logged in the queues as pairs of events: a “Detected” event and a corresponding “Cleared” event. System Show Errors, Status Front Panel Status...
  • Page 79 Instrument Messages Introduction Table 3-1 Characteristics of the Event Queues Characteristic Front-Panel Status Front-Panel History Remote Interfaces (GPIB/LAN) Send SCPI query to the desired System Show System Show Press: Press: Viewing Entries interface. Errors Status Errors History SYSTem:ERRor? Press: Press: Send *CLS command to the System Show...

  • Page 80: Advisory Messages

    Instrument Messages Advisory Messages Advisory Messages An advisory is simply a message that lets you know something useful - for example “File saved successfully” or “Measuring fundamental.” Operation completion and running status indications are common types of advisories. Advisories have no number and are not logged in the error queue. Advisories include gray-out “settings conflict”...
  • Page 81 Instrument Messages Advisory Messages If a Marker is a Fixed type marker, the marker's value does not Band Adjust has no effect on a Fixed change from when it first became fixed. So you cannot change the marker band of a fixed marker. If Marker Function is off changing the band has no effect Band Adjust has no effect with Mkr Function Off...
  • Page 82 Instrument Messages Advisory Messages The setup frequencies break the rules for a downconverter Fixed LO freq should be greater than RF measurement. The measurement will still run, but check setup Stop freq frequencies are correct before continuing. The LO fixed freq should be greater than the RF freq’s for an LSB or DSB (for DSB measurements the setup uses LSB values) downconverter setup.
  • Page 83 Instrument Messages Advisory Messages The setup frequencies break the rules for a downconverter RF Start freq should be greater than LO measurement. The measurement will still run, but check setup Start freq frequencies are correct before continuing. The RF start freq should be greater than the LO Start freq’s for an USB downconverter swept LO setup.
  • Page 84 Instrument Messages Advisory Messages The setup frequencies break the rules for an upconverter LO Start freq should be greater than IF measurement. The measurement will still run, but check setup Fixed freq frequencies are correct before continuing. The LO Start freq should be greater than the IF fixed freq for an LSB upconverter swept LO setup.
  • Page 85 Instrument Messages Advisory Messages You have selected more detectors than the instrument hardware Detector <X> changed due to physical can implement. An existing detector selection has been changed constraints to allow the current detector choice to be selected. <X> indicates the trace number for which the detector was changed.

  • Page 86: 800, Operation Complete Event

    Instrument Messages -800, Operation Complete Event -800, Operation Complete Event Err# Message Verbose/Correction Information -800 The instrument has completed all selected pending operations in Operation complete accordance with the IEEE 488.2, 12.5.2 synchronization protocol. Keysight N9010A EXA Service Guide...

  • Page 87: 700, Request Control Event

    Instrument Messages -700, Request Control Event -700, Request Control Event Err# Message Verbose/Correction Information -700 The instrument requested to become the active IEEE 4881 Request control controller-in-charge. Keysight N9010A EXA Service Guide...

  • Page 88: 600, User Request Event

    Instrument Messages -600, User Request Event -600, User Request Event Err# Message Verbose/Correction Information -600 The instrument has detected the activation of a user request local User request control. Keysight N9010A EXA Service Guide...

  • Page 89: 500, Power On Event

    Instrument Messages -500, Power on Event -500, Power on Event Err# Message Verbose/Correction Information -500 The instrument has detected an off to on transition in its power supply. Power on Keysight N9010A EXA Service Guide...

  • Page 90: -400 To -499, Query Errors

    Instrument Messages -400 to -499, Query Errors -400 to -499, Query Errors Err# Message Verbose/Correction Information -400 There was a problem with a query command. The exact problem Query Error cannot be specifically identified. -410 Some condition caused an INTERRUPTED query to occur. For Query INTERRUPTED example, a query was followed by DAB or GET before a response was completely sent.

  • Page 91: -300 To -399, Device-Specific Errors

    Report this error to the nearest Keysight Technologies sales or service office. -310 The indicated feature/software will expire in the specified time. System error; A license Contact Keysight Technologies to purchase continued use of this will soon expire;<feature functionality. code> will expire in <time> -310 Communication with the network driver failed.
  • Page 92 -321 An internal operation needed more memory than was available. Report Out of memory this error to the nearest Keysight Technologies sales or service office. -330 A self-test failure occurred. Report this error to the nearest Keysight Self-test failed Technologies sales or service office.
  • Page 93 Instrument Messages -300 to -399, Device-Specific Errors -360 The Keysight Smart Noise Source connected to the MXA has failed to Communication error; SNS be read by the application. Please disconnect and reconnect the SNS. data read failure. If this continues to fail, then the SNS may have had its EEPROM Disconnect then reconnect corrupted or another hardware fault exists.

  • Page 94: -221 Settings Conflict Errors

    Instrument Messages -221 Settings Conflict Errors -221 Settings Conflict Errors This is one of the errors in the standard SCPI error range of -200 to -299. See the table in section “-200 to -299, Execution Errors” on page 104 for the rest of those errors.
  • Page 95 Instrument Messages -221 Settings Conflict Errors -221 These special units only apply when you are doing antenna Settings conflict; Antenna measurements with corrections enabled. Unit is only available when antenna Correction is on -221 The K, E, W, F, D, G, Y, J band functionality is not available if the Settings conflict;...
  • Page 96 Instrument Messages -221 Settings Conflict Errors -221 When a correction with antenna units is turned on, that is the only Settings conflict; unit allowed. You can have two sets of antenna corrections turned Corrections with different on, but only if they have the same units. antenna units not allowed -221 Does this really exist? If so, what does it really mean?
  • Page 97 Instrument Messages -221 Settings Conflict Errors -221 The FFT sweep type is not available if you have selected the gated Settings conflict; FFT sweep video function. type is not available while in Gated Video -221 If a Marker Function is on for a Fixed marker, the marker's reported Settings conflict;...
  • Page 98 Instrument Messages -221 Settings Conflict Errors -221 The gated FFT function is not available if you have selected the Settings conflict; Gated FFT swept type of sweep. You must be in the FFT sweep type. is not available while Sweep Type is set to Swept -221 The FFT sweep type moves the LO frequency in steps.
  • Page 99 Instrument Messages -221 Settings Conflict Errors -221 If a Marker is a Fixed type marker, the marker's value does not Settings conflict; Marker change from when it first became fixed. You cannot turn on or Function is not available change a Marker Function because there is no ongoing for a Fixed marker measurement data to use for the marker function calculation.
  • Page 100 Instrument Messages -221 Settings Conflict Errors -221 The Normalize function works by doing trace manipulation. So if Settings conflict; Normalize trace math is on you cannot turn on normalization. is not available while Trace Math is on -221 You have attempted to perform an action for which a required Settings conflict;...
  • Page 101 Instrument Messages -221 Settings Conflict Errors -221 The current span setting is either narrower than the mask width or Settings conflict; Settings so wide that there are too few display points to allow the mask to conflict; Mask unavailable be drawn. Increase or decrease the span to display the mask. for current Span.
  • Page 102 Instrument Messages -221 Settings Conflict Errors -221 The sweep time for FFT sweeps is set by the calculations. So Settings conflict; Sweep sweep time settings cannot be adjusted. Time cannot be auto-coupled in FFT sweeps -221 You cannot send the remote command to set the sweep time to Settings conflict;...
  • Page 103 Instrument Messages -221 Settings Conflict Errors -221 Only base station testing is available. Settings conflict; Tx Band Spur measurement is not defined for mobiles. -221 Logarithmic scales cannot be used for time domain sweeps (0 Hz Settings conflict; Zero Span span).

  • Page 104: -200 To -299, Execution Errors

    Instrument Messages -200 to -299, Execution Errors -200 to -299, Execution Errors For -221 error messages, see the previous sections. Note that Execution Errors are divided into subclasses: -21x – Trigger errors -22x – Parameter error -23x – Data corrupt or stale (invalid data) -24x –...
  • Page 105 Instrument Messages -200 to -299, Execution Errors -200 The Reference trace data must be stored in the Ref trace before you Execution Error; Store ref turn on the Normalization function. trace before turning on Normalize -200 NADC & PDC: In an EVM measurement, the sync word is not found and Execution error;...
  • Page 106 Instrument Messages -200 to -299, Execution Errors -220 A problem was found with a program data element. The exact problem Parameter error cannot be specifically identified. -221 There are many types of settings conflict errors. See section 3.5 for Settings conflict; information about these errors.
  • Page 107 Instrument Messages -200 to -299, Execution Errors -224 The value for the LXI LAN identifier parameter must be unique (i.e. Illegal parameter value; LAN0 and LAN7 must have different identifier strings). Illegal identifier <identifier>. This value may already be in use. -224 When querying the LXI Event Log or the Servo Log, an index may be Illegal parameter value;...
  • Page 108 Instrument Messages -200 to -299, Execution Errors -231 Indicates that the measurement accuracy is suspect Data questionable -232 A data element was found but it could not be used because the data Invalid format format or the data structure was not correct. -232 Instrument failed to load the burst mapping information from the Invalid format;...
  • Page 109 Instrument Messages -200 to -299, Execution Errors -250 The load trace operation could not be completed, as the input file was Mass storage error; Failed not in the expected format. You can only load traces that were to Load trace. Bad file previously saved using the 'Save Trace' feature.
  • Page 110 Instrument Messages -200 to -299, Execution Errors -254 A legal command/query could not be executed because the media Media full was full -255 A legal command or query could not be executed because media Directory full directory was full. -256 A legal command or query could not be executed because the file File name not found;...
  • Page 111 Instrument Messages -200 to -299, Execution Errors -278 Indicates that a syntactically legal macro label in the *GMC? query Macro header not found could not be executed because the header was not previously defined. -280 There was an execution error in a down-loaded program. The exact Program error problem cannot be specifically identified.

  • Page 112: -100 To -199, Command Errors

    Instrument Messages -100 to -199, Command Errors -100 to -199, Command Errors Err# Message Verbose/Correction Information -100 There is a problem with the command. The exact problem cannot be Command error specifically identified. -101 An invalid character was found in part of the command. Invalid character -102 An unrecognized command or data type was found, for example a...
  • Page 113 Instrument Messages -100 to -199, Command Errors -128 A legal numeric data element was found, but that is not a valid Numeric data not allowed element at this position in the command. -130 A problem was found in a suffix (units). The exact problem cannot be Suffix error specifically identified.
  • Page 114 Instrument Messages -100 to -199, Command Errors -183 Indicates that the program message unit sequence, sent with a *DDT Invalid inside macro or *DMC command, is syntactically invalid definition -184 Indicates that a command inside the macro definition had the wrong Macro parameter error number or type of parameters.

  • Page 115: Error

    Instrument Messages 0 Error 0 Error Err# Message Verbose/Correction Information The queue is empty. Either every error in the queue has been read, or No error the queue was cleared by power-on or *CLS. Keysight N9010A EXA Service Guide...

  • Page 116: Condition Errors 1 To 99, Calibration

    Instrument Messages Condition Errors 1 to 99, Calibration Condition Errors 1 to 99, Calibration Condition Errors 6 to 34, Calibration Skipped Errors with instrument internal alignment routines being skipped. (Selected to not be executed.) An event with the error number shown in the table means the condition has been detected.

  • Page 117: Condition Errors 36 To 64, Calibration Needed Or Failed

    Instrument Messages Condition Errors 1 to 99, Calibration Condition Errors 36 to 64, Calibration Needed or Failed Errors with instrument internal alignment routines. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.

  • Page 118: Condition Errors 65 To 92, Calibration Needed (Extended)

    Instrument Messages Condition Errors 1 to 99, Calibration Condition Errors 65 to 92, Calibration Needed (Extended) Errors with instrument internal alignment routines. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.

  • Page 119: Condition Errors 67 To 95, Calibration Failure (Extended)

    Instrument Messages Condition Errors 1 to 99, Calibration Condition Errors 67 to 95, Calibration Failure (Extended) Errors with instrument internal alignment routines failing. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.
  • Page 120 Instrument Messages Condition Errors 1 to 99, Calibration Keysight N9010A EXA Service Guide...

  • Page 121: Condition Errors 101 To 199, Measurement Integrity

    Instrument Messages Condition Errors 101 to 199, Measurement Integrity Condition Errors 101 to 199, Measurement Integrity Errors with making measurements: triggering, over range, bad acquisition/data, bad settings. An event with the error number shown in the table means the condition has been detected.
  • Page 122 Instrument Messages Condition Errors 101 to 199, Measurement Integrity Insufficient Data A measurement was attempted or a SCPI query of an ENR Insufficient Data; ENR table was made and there were no entries in the relevant table empty ENR table (Common, Meas or Cal). A measurement was attempted with List frequency mode or Insufficient Data;...
  • Page 123 Instrument Messages Condition Errors 101 to 199, Measurement Integrity The filter you have selected is larger than the sampling Setting Modified; frequency. You should select a different filter. Filter not applied Keysight N9010A EXA Service Guide...

  • Page 124: Condition Errors 201 To 299, Signal Integrity

    Instrument Messages Condition Errors 201 to 299, Signal Integrity Condition Errors 201 to 299, Signal Integrity Errors with the signals being measured: signals not found (timing/frequency/amplitude), signals noisy or degraded. An event with the error number shown in the table means the condition has been detected.
  • Page 125 Instrument Messages Condition Errors 201 to 299, Signal Integrity The burst signal cannot be detected because of Burst Not Found inappropriate parameter settings or incorrect signal. An in appropriate parameter setting could cause the signal to be partially, rather than fully, on the display, Burst Search Threshold and/or Burst Search Length may need to be adjusted.
  • Page 126 Instrument Messages Condition Errors 201 to 299, Signal Integrity Carrier(s) incorrect or missing Freq Out of Range One or more external LO frequencies are out of range. Freq Out of Range; Check that the LO frequency limits are set correctly and External LO check the entered measurement frequencies and measurement mode.
  • Page 127 Instrument Messages Condition Errors 201 to 299, Signal Integrity This error is normally generated because of one of the Demod Error following reasons: 1. There is no carrier signal. 2. Walsh channels other than the pilot are active. 3. There is some other modulation problem that will prevent the measurement from being made.
  • Page 128 Instrument Messages Condition Errors 201 to 299, Signal Integrity NADC & PDC: The valid EVM measurement cannot be Signal Too Noisy performed, because the input signal is too noisy. GSM & EDGE: In a GSM measurement, indicates that a burst could not be found in a signal that appears noisy. Slot Error No valid idle slot found in captured data, or no idle slot Slot Error;...

  • Page 129: Condition Errors 301 To 399, Uncalibrated Integrity

    Instrument Messages Condition Errors 301 to 399, Uncalibrated Integrity Condition Errors 301 to 399, Uncalibrated Integrity Errors with measurement calibration/alignment routines and signals. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.
  • Page 130 Instrument Messages Condition Errors 301 to 399, Uncalibrated Integrity The existing user cal has been invalidated because User Cal; Cal invalidated of one of the following reasons: Frequency: Setting the frequency outside the current valid user cal set (for example: If the current sweep range is 2 to 3GHz, then setting the start frequency to 1.9 GHz will invalidate the current user cal.
  • Page 131 Instrument Messages Condition Errors 301 to 399, Uncalibrated Integrity One or more calibration or measurement Calibration; ENR table frequency points exceed the currently loaded Cal extrapolated or Meas ENR Table frequency ranges. The corresponding ENR table’s lowest frequency ENR value will be re-used for frequencies less than the table range, and the highest frequency ENR value will be re-used for frequencies greater than the table range.

  • Page 132: Condition Errors 401 To 499, Power

    Instrument Messages Condition Errors 401 to 499, Power Condition Errors 401 to 499, Power Errors with signal power unleveled, overloaded, oscillating. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.

  • Page 133: Condition Errors 501 To 599, Frequency

    Instrument Messages Condition Errors 501 to 599, Frequency Condition Errors 501 to 599, Frequency Errors with signal frequency unlocked, span/bandwidth/freq reference problems. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.
  • Page 134 Instrument Messages Condition Errors 501 to 599, Frequency unused bit14 is set Keysight N9010A EXA Service Guide...

  • Page 135: Condition Errors 601 To 699, Error Summaries

    Instrument Messages Condition Errors 601 to 699, Error Summaries Condition Errors 601 to 699, Error Summaries The instrument hardware status registers keep track of various error conditions. The bits in this register summarize the status of several different status registers. An event with the error number shown in the table means the condition has been detected.
  • Page 136 Instrument Messages Condition Errors 601 to 699, Error Summaries Keysight N9010A EXA Service Guide...

  • Page 137: Condition Errors 701 To 799, Operation

    Instrument Messages Condition Errors 701 to 799, Operation Condition Errors 701 to 799, Operation Errors showing that the instrument is busy doing something. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.

  • Page 138: Condition Errors 801 To 899, Temperature

    Instrument Messages Condition Errors 801 to 899, Temperature Condition Errors 801 to 899, Temperature Errors with instrument internal temperatures. An event with the error number shown in the table means the condition has been detected. When the condition is cleared, an event with the error number plus 1000 is generated.

  • Page 139: Rf Section Troubleshooting (Rf/Microwave Analyzers)

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 4 RF Section Troubleshooting (RF/Microwave Analyzers) What You Will Find in This Chapter The following information is found in this chapter: 1. Theory of operation of the RF section 2.

  • Page 140: Rf Section Description

    RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description RF Section Description Purpose This section covers only those optional frequency ranges listed below for the N9010A, Signal Analyzer. — Option 503, 3.6 GHz Frequency Range — Option 507, 7 GHz Frequency Range —...
  • Page 141 RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description The RF section is comprised of the following major assemblies: — A9 Input Attenuator A — A10 Input Attenuator B — A11 Low Band Switch Assembly — A12 YTF Preselector — A14 L.O. Synthesizer Assembly —...
  • Page 142 RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description 1. RF input frequencies < 3600 MHz route through the low band path. Refer Chapter 12, “Block Diagrams” for details. The RF input signal level can be optimized by either Input Attenuator A or Input Attenuator B.
  • Page 143 RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description 3. RF input frequencies from 13.6 GHz to 26.5 GHz go through high band path #2. Refer to Chapter 12, “Block Diagrams” for details. This signal level can be optimized by either Input Attenuator A or Input Attenuator B.

  • Page 144: Rf Section Theory Of Operation

    RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description RF Section Theory of Operation A9 Input Attenuator A This assembly has two 2 dB attenuator sections, a DC block and a cal signal input port. With the DC block switched in (AC coupled mode), the low end minimum frequency range increases from 9 kHz to 10 MHz due to capacitive effects.
  • Page 145 RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description A14 L.O. Synthesizer Assembly The L.O. Synthesizer Assembly provides the 1st L.O. power that is required for the A13 RF Front End Assembly. The 1st L.O. has a frequency range from 3.80 to 8.70 GHz.
  • Page 146 RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description A13 RF Front End Assembly This assembly is a self-contained microcircuit that is repaired at the assembly level. See Figure 4-1. Figure 4-1 A13 RF Front End Assembly View from Front Panel This assembly contains the following circuits: —...
  • Page 147 RF Section Troubleshooting (RF/Microwave Analyzers) RF Section Description Table 4-2 A13 RF Front End Signals Signal Name Description From RF Input 9 kHz to 3.59 GHz RF Input A11J2, Low Band Switch A13J2 Microwave Input 3.6 GHz to 26.5 GHz YTF Output or SW1 A13J9 U-wave RF Input...

  • Page 148: Troubleshooting

    RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Troubleshooting Quick Check to Verify the Low Band Signal Path The analyzer has an internal 50 MHz amplitude reference signal that is used to verify the low band path. Refer to Chapter 12, “Block Diagrams” for details.
  • Page 149 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Disconnect the W15 or W36 cable from A13J7 on the RF Front End Assembly (1) 322.5 MHz output. See Figure 4-2. Figure 4-2 W15 or W36 Location Keysight N9010A EXA Service Guide...
  • Page 150 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Connect A13J7 output to a functioning spectrum analyzer and verify the 322.5 MHz intermediate frequency is measuring −28.5 ± 3 dB using the same analyzer settings as in Figure 4-3. Figure 4-3 322.5 MHz Intermediate Frequency If this power level is correct the RF assembly from the A9 50 MHz Reference signal input port to A13J7, 322.5 MHz I.F.
  • Page 151 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If this power level is incorrect, the following assemblies need to be verified in the order listed using the 50 MHz internal calibrator signal. Be sure the 50 MHz calibrator is turned on Input/Output, RF Calibrator, 50 MHz when verifying the performance.

  • Page 152: Troubleshooting A Low Band Problem

    RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Troubleshooting a Low Band Problem 1. Reference Assembly Verification Remove cable W19 from A9 Input Attenuator A (1) and measure the 50 MHz calibrator signal on the cable end with a functioning Spectrum Analyzer. Refer Figure 4-5.
  • Page 153 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If the Reference assembly calibrator is functioning properly the 50 MHz calibrator signal will measure 50 MHz at −25 dBm ± 3 dB. See Figure 4-6. If this level is incorrect, the Reference assembly is most likely defective. Reconnect W19 at A9 Input Attenuator A.
  • Page 154 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 2. L.O. Synthesizer Assembly Verification Press the following keys on the analyzer: FREQ (Channel), 1 GHz SPAN (X Scale) Zero Span Refer to Figure 4-7. Disconnect cable W4 at A14J740 of the L.O. Synthesizer Assembly (1).
  • Page 155 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Connect the functioning Spectrum Analyzer and appropriate high frequency cable and connector to A14J740. Adjust the functioning Spectrum Analyzer to measure a signal at 6122.5 MHz at +16 dBm ± 4 dB as seen in Figure 4-8.
  • Page 156 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If this power level is incorrect remove W6 at A14J200. Refer to Figure 4-7. Adjust the functioning spectrum analyzer to measure a signal at 4.800 GHz at +4.5 dBm ± 2 dB. See Figure 4-9.
  • Page 157 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 3. Front End Control Assembly Verification Verifying the Front End Control Assembly requires the RF Front End Troubleshooting board E4410-60115 or kit number N9020-60005. The kit includes the troubleshooting board and associated interconnect cables. The troubleshooting board and cables will help verify the control logic from this assembly to Input Attenuator A, Input Attenuator B, Low Band Switch, YTF Preselector, (Optional) Low Band Preamplifier, (Optional) Electronic Attenuator...
  • Page 158 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Figure 4-11 RF Front End Troubleshooting Board — Turn the instrument on and allow it to complete its full boot up process to the signal analyzer application. — Turn Auto Align off by pressing System, Alignments, Auto Align, Off on the analyzer.
  • Page 159 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 4. Input Attenuator A Control Logic Verification — Press AMPTD, Attenuation 0 dB All the attenuation LED's on the Front End Troubleshooting board should be off except for DS9 and DS10, +25V supply for Attenuator A and Attenuator B. Refer to Figure 4-12.
  • Page 160 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Figure 4-12 Front End Troubleshooting Board Attenuation LEDs Keysight N9010A EXA Service Guide...
  • Page 161 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Change the input attenuation to the values indicated in Table 4-3. Verify that LEDs DS15 and DS16 are illuminated as per Table 4-3. Note that the 2 dB and 4 dB attenuator settings are only available on analyzers with Option FSA, Fine Step Attenuator.
  • Page 162 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Set the input attenuator back to 10 dB by pressing AMPTD, Attenuation, 10 dB on the analyzer. If the LED's illuminate correctly, the switch control logic for the input attenuators from the A15 Front End Control Assembly is correct. If the LED's are not illuminating as expected, the most probable cause is the A15 Front End Control Assembly.
  • Page 163 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 7. YTF Preselector Control Logic Verification (All except Option 503) In order to properly measure the preselector tune output from the A15 Front End Control Assembly, the following items are required: — E9637A Banana plug to BNC (f) adapter —...
  • Page 164 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting To further test the YTF control current, select Amps on the DVM and place the positive lead of the DVM on one of the YTF Coil Current P8 pins and the other DVM lead to the other Coil Current pin. In order to measure the control current correctly, press Single on the analyzer in between each measurement.
  • Page 165 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 8. Front End Assembly Control Logic Verification Since the RF Front End Troubleshooting board is connected, now is a good time to test out the remaining control circuits from the A15 Front End Control Assembly.
  • Page 166 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Table 4-9 Front End Control Logic Test Point Description Instrument Settings Vol tage Tolerance (VDC) (VDC) S14A Sets path to either band 1 & 2 mixer or band CF 5 GHz −9.83 ±0.5 3 & 4 mixer CF 20 GHz +9.83 S14B...
  • Page 167 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Input Attenuator A Power Level Verification Press Mode Preset, Input/Output, RF Calibrator, 50 MHz, AMPTD, Attenuation, 0 dB on the analyzer. Refer to Figure 4-13, remove cable W11 from A9 (1) Output. Measure the 50 MHz calibrator signal on the output of the attenuator using a functioning Spectrum Analyzer.
  • Page 168 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting The level should be −25 dBm ± 2 dB as shown in Figure 4-14. Figure 4-14 50 MHz Calibrator Signal on Output of Attenuator A The paragraph which follows applies only to analyzers equipped with Option FSA, Fine Step Attenuator.
  • Page 169 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Input Attenuator B Power Level Verification Press AMPTD, Attenuation, 0 dB. Remove output cable W9 from A10 (2). Refer to Figure 4-13. Measure the 50 MHz calibrator signal on the output of the attenuator using a functioning Spectrum Analyzer. The level should be −25 dBm ±...
  • Page 170 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If the analyzer is equipped with Option FSA, press Mech Atten and enter 6 dB. The 50 MHz calibrator signal measured on the functioning Spectrum Analyzer should measure 6 dB lower than the previous step (~−31 dBm) as shown in Figure 4-16.
  • Page 171 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 1. It may be difficult to measure the higher attenuator settings using the −25 dBm internal calibrator signal. Use an external source with the frequency set to 50 MHz and adjust the output level to 0 dBm. This will increase the measured power levels noted in the table above by 25 dB. 2.
  • Page 172 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting When the analyzer is tuned to a center frequency of 50 MHz, the Low Band switch should have minimal loss. Press Input/Output, RF Calibrator, 50 MHz, AMPTD, Attenuation, 10 dB on the analyzer. Measure the 50 MHz calibrator signal on the output of A11J2 using a functioning Spectrum Analyzer.

  • Page 173: Quick Check To Verify High Band Rf Path #1

    RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If all the power levels and biasing from the A15 Front End Control Assembly measure correctly up to this point, the most probable cause would be the A13 RF Front End Assembly. Quick Check to Verify High Band RF Path #1 (RF Input Frequencies >...
  • Page 174 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Disconnect cable W15 or W36 at A13J7, 322.5 MHz output on the Front End Assembly (1). See Figure 4-19. Figure 4-19 W15 or W36 Location Keysight N9010A EXA Service Guide...
  • Page 175 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Connect A13J7 output to a functioning spectrum analyzer and verify the 322.5 MHz intermediate frequency is measuring −32 ± 4 dB as shown in Figure 4-20. Figure 4-20 322.5 MHz Intermediate Frequency If this power level is correct the entire RF section is operating correctly in high band.
  • Page 176 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 8. A13 RF Front End Assembly High Band #2 RF signal path utilizes a high band mixer internal to the A13 RF Front End Assembly for RF input frequencies from 13 GHz to 26.5 GHz. Since all the control voltages and biasing were already fully tested, failures from 13 GHz −...

  • Page 177: Troubleshooting A High Band Problem

    RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Troubleshooting a High Band Problem 1. Reference Assembly Verification Refer to Figure 4-22. Remove cable W19 from A9 Input Attenuator A (1). Measure the 4.8 GHz calibrator signal on the cable end with a functioning Spectrum Analyzer.
  • Page 178 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If the Reference Assembly calibrator is functioning properly the 4.8 GHz calibrator signal will measure 4.8 GHz at −28 dBm ± 3 dB as shown in Figure 4-23. If this level is incorrect, the Reference Assembly is most likely defective. Reconnect W19 at A9 (1).
  • Page 179 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 2. L.O. Synthesizer Assembly Verification Press the following keys on the analyzer: Mode Preset FREQ (Channel), 5 GHz SPAN (X Scale), Zero Span Refer to Figure 4-24. Disconnect cable W4 at A14J740 of the L.O. Synthesizer Assembly (1).
  • Page 180 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Connect the functioning Spectrum Analyzer and appropriate high frequency cable and connector to A14J740. Adjust the analyzer to measure a signal at 5322.5 MHz at +16 dBm ± 4 dB as shown in Figure 4-25.
  • Page 181 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Adjust the functioning spectrum analyzer to measure a signal at 4.8 GHz at +4.5 dBm ± 2 dB as shown in Figure 4-26. Figure 4-26 4.8 GHz Signal If this power level is incorrect, the most probable cause is the A16 Reference Assembly.
  • Page 182 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 3. Front End Control Assembly Verification If the Front End Control Assembly logic was verified in the 'Low Band Quick IMPORTANT Check' section above, skip to “Input Attenuator A Power Level Verification (Option FSA only)” step below.
  • Page 183 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Figure 4-27 RF Front End Troubleshooting Board Figure 4-28 RF Front End Troubleshooting Board Keysight N9010A EXA Service Guide...
  • Page 184 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting — Turn the instrument on and allow it to complete its full boot up process to the signal analyzer application. — Turn Auto Align off by pressing System, Alignments, Auto Align, Off on the analyzer.
  • Page 185 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Figure 4-29 Front End Troubleshooting Board Attenuation LEDs Keysight N9010A EXA Service Guide...
  • Page 186 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Change the input attenuation to the values indicated in Table 4-11. Verify that LEDs DS15 and DS16 are illuminated as per Table 4-11. Note that the 2 dB and 4 dB attenuator settings are only available on analyzers with Option FSA, Fine Step Attenuator.
  • Page 187 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Set the input attenuator back to 10 dB by pressing AMPTD, Attenuation, 10 dB on the analyzer. If the LED's illuminate correctly, the switch control logic for the input attenuators from the A15 Front End Control Assembly is correct. If the LED's are not illuminating as expected, the most probable cause is the A15 Front End Control Assembly.
  • Page 188 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 7. YTF Preselector Control Logic Verification In order to properly measure the preselector tune output from the A15 Front End Control Assembly, the following items are required: — E9637A Banana plug to BNC (f) adapter —...
  • Page 189 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting In order to measure the control current correctly, press Single on the analyzer in between each measurement. If any of the preselector control currents do not match the levels in Table 4-16, the most probable causes are a misaligned YTF or the A15 Front End Control Assembly.
  • Page 190 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 8. Front End Assembly Control Logic Verification Since the RF Front End Troubleshooting board is connected, now is a good time to test out the remaining control circuits from the A15 Front End Control Assembly.
  • Page 191 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Table 4-17 Front End Control Logic Test Point Description Instrument Settings Vol tage Tolerance (VDC) (VDC) S14A Sets path to either band 1 & 2 mixer or band CF 5 GHz −9.83 ±0.5 3 & 4 mixer CF 20 GHz +9.83 S14B...
  • Page 192 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Tolerances should be used as a guideline. If any of the voltages measured do not match the levels in Table 4-17, the most probable cause is the A15 Front End Control Assembly. Once the switch control logic has been verified, turn off the instrument.
  • Page 193 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting The level should be −28 dBm ±2 dB as shown in Figure 4-31. Figure 4-31 4.8 GHz Calibrator Signal on Output of Attenuator A The paragraph which follows applies only to analyzers equipped with Option FSA, Fine Step Attenuator.
  • Page 194 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting The level should be −28 dBm ± 2 dB as shown in Figure 4-32. Figure 4-32 4.8 GHz Calibrator Signal on Output of Attenuator B If the analyzer is equipped with Option FSA, press Mech Atten and enter 6 dB. The 4.8 GHz calibrator signal measured on the functioning Spectrum Analyzer should measure 6 dB lower than the previous step (~−34 dBm).
  • Page 195 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting 1. It may be difficult to measure the higher attenuator settings using the −28 dBm internal calibrator signal. Use an external source with the frequency set to 4.8 GHz and adjust the output level to 0 dBm. This will increase the measured power levels noted in the table above by 28 dB. 2.
  • Page 196 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Low Band Switch Power Level Verification (for High Band) Refer to Figure 4-33. Carefully disconnect both ends of the W8 cable at A11J3 and A12 (1) input. If the microwave preselector bypass hardware is installed, disconnect both ends of W31 at A11J3 and SW2 port C.
  • Page 197 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Turn off auto align by pressing System, Alignments, Auto Align, Off. IMPORTANT Measure the 4.8 GHz calibrator signal on the output of A11J3 Low Band Switch high band output port using a functioning Spectrum Analyzer. The level should be −46 dBm ±...
  • Page 198 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting If the power level is correct, do not reconnect W8 or W31 at this time. Refer to Figure 4-35, disconnect W7 at A12 (1) output and install a connector such that the A12 YTF Preselector output can be measured. If the preselector bypass hardware is installed, disconnect W33 at A12.
  • Page 199 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting A12 YTF Preselector Power Level Verification Press Input/Output, RF Calibrator, 4.8 GHz, AMPTD, Attenuation, 10 dB, SPAN (X Scale), Zero Span on the analyzer. Measure the 4.8 GHz calibrator on the output of either the W7 (or, if the microwave preselector bypass hardware is installed, W34) cable using a functioning spectrum analyzer.
  • Page 200 RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting The following High Band path items have been verified in the RF section: — 4.8 GHz Calibrator signal power level from the A16 Reference Board — 1st L.O. power level from the A14 L.O. Synthesizer —...

  • Page 201: High Band Preamp (P07, P13, P26)

    RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting High Band Preamp (P07, P13, P26) If any of the preamp options listed above is installed, the High Band preamp can be verified as follows: View the 4.8 GHz calibrator signal on screen. Press AMPTD, More, Internal Preamp, Full Range to activate the preamp.

  • Page 202: Microwave Preselector Bypass (Option Mpb)

    RF Section Troubleshooting (RF/Microwave Analyzers) Troubleshooting Microwave Preselector Bypass (Option MPB) Allows the YTF to be bypassed, improving amplitude accuracy. Assure start frequency is 3.6 GHz or greater. Press Amplitude, uW Path Control, uW Preselector Bypass. When the bypass switches Switch 1 and Switch 2 change state you will hear a click.

  • Page 203: Rf Section Troubleshooting (Millimeter-Wave Analyzers)

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 5 RF Section Troubleshooting (Millimeter-Wave Analyzers) What You Will Find in This Chapter The following information is found in this chapter: 1. Theory of operation of the RF section.

  • Page 204: Rf Section Description

    RF Section Troubleshooting (Millimeter-Wave Analyzers) RF Section Description RF Section Description This section covers only those optional frequency ranges listed below for the N9010A Signal Analyzer. — Option 532, 32 GHz Frequency Range — Option 544, 44 GHz Frequency Range The RF input signal can be routed through four different front end signal paths.
  • Page 205 RF Section Troubleshooting (Millimeter-Wave Analyzers) RF Section Description The RF section is comprised of the following major assemblies: — A9 Input Attenuator A — A10 Input Attenuator B — A11 Low Band Switch Assembly — A12 YTF Preselector — A13 RF Front End Assembly - shown on the block diagram as A13 and A13A1, however replacement A13 assemblies include the A13A1.
  • Page 206 RF Section Troubleshooting (Millimeter-Wave Analyzers) RF Section Description 2. RF input frequencies from 3.6 GHz to 17.1 GHz go through the high band path. Refer to the RF Highband Path #1 Block Diagram (Millimeter-Wave Analyzers) in Chapter 12 for details. The input signal level can be optimized by Input Attenuator A and/or Input Attenuator B.

  • Page 207: A9 Input Attenuator A

    RF Section Troubleshooting (Millimeter-Wave Analyzers) RF Section Description A9 Input Attenuator A This assembly has two 2 dB attenuator sections, a 6 dB attenuator section, and a cal signal input port. The 2 dB and 6 dB sections are only used if Option FSA is installed.

  • Page 208: A13 Rf Front End Assembly (Options 532, 544)

    RF Section Troubleshooting (Millimeter-Wave Analyzers) RF Section Description A13 RF Front End Assembly (Options 532, 544) This assembly contains the major front end conversion components. The A13 is repaired at the assembly level. Replacement A13 assemblies include the A13A1 1st IF Bandpass Filter. See Figure 5-1.
  • Page 209 RF Section Troubleshooting (Millimeter-Wave Analyzers) RF Section Description This assembly contains the following circuits: — Input Low-pass filter (RF input signals < 3.6 GHz) — Optional Low Band Electronic Attenuator (0-24 dB attenuation control) — Optional Low Band Preamplifier and Limiter —...

  • Page 210: Troubleshooting

    RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Troubleshooting Quick Check to Verify the Low Band Signal Path The analyzer has an internal 50 MHz amplitude reference signal that is used to verify the low band path. This 50 MHz calibrator is used when the analyzer performs many of the internal alignment routines.
  • Page 211 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting If the power level is not within tolerance, press SPAN (X Scale), Zero Span, AMPTD (Y Scale), Attenuation, 10 dB. Turn off auto align by pressing System, Alignments, Auto Align, Off. IMPORTANT Disconnect the W36 cable from A13J7 on the Front End Assembly IF Out. Figure 5-1.
  • Page 212 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting If this power level is incorrect, the following assemblies need to be verified using the 50 MHz internal calibrator signal. Be sure the 50 MHz calibrator is turned on. Press Input/Output, RF Calibrator, 50 MHz when verifying the performance.

  • Page 213: Troubleshooting A Low Band Problem

    RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Troubleshooting a Low Band Problem Refer to the RF Lowband Path Block Diagram (Millimeter-Wave Analyzers) in Chapter 12and follow the instructions in the settings box. To enable the internal 50 MHz, −25 dBm calibrator signal press Input/Output, RF Calibrator, 50 MHz.
  • Page 214 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Figure 5-3 RF Section (Options 532, 544) Keysight N9010A EXA Service Guide...
  • Page 215 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting A9 Input Attenuator and A10 Input Attenuator Verification Calibrator Switch Test On the A16 Reference assembly, disconnect semi rigid cable W3 from A16J701 and measure A16J701 with a spectrum analyzer. Expected signal is 50 MHz at −25 dBm ±...
  • Page 216 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Second LO Level Verification The second LO signal comes from the A16 Reference Assembly and is only used in Low Band. The second LO signal can be measured on the Front End Assembly at A13J1 or the A16 Reference Assembly at A16J702. Expected signal is 4800 MHz at +10 dBm when a low loss test cable is used and with the measuring spectrum analyzer input attenuator set to at least 20 dB to prevent overload.
  • Page 217 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Connect the functioning Spectrum Analyzer and appropriate high frequency cable and connector to A14J740. Adjust the functioning Spectrum Analyzer to measure a signal at 6122.5 MHz at +16 dBm ± 4 dB as seen in Figure 5-5.
  • Page 218 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting If this power level is incorrect remove W6 at A14J200. Refer to Figure 5-4. Adjust the functioning spectrum analyzer to measure a signal at 4.800 GHz at +4.5 dBm ± 2 dB. See Figure 5-6.
  • Page 219 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting The Second LO input was tested during the Second LO Verification. The LO input at W4, and the LO outputs were tested when performing the First LO Verification. It is possible to measure the A13W1 input cable to A13A1 where it connects to A13A1J2, and the output of the A13A1 at A13W2 where it connects to A13J11.
  • Page 220 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Low Band Preamp (Option P03, P07, P13, P26, P32, P44) The Preamp is aligned as part of the System Gain internal alignment process. See the description of the initial alignments and the location of the alignment history file in Chapter 2, “Boot Up and Initialization Troubleshooting”, on page 49.

  • Page 221: Quick Check To Verify High Band Rf Path

    RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Quick Check to Verify High Band RF Path Refer to the RF Highband Path #1 Block Diagram (Options 532, 544) in Chapter The High Band signal path (sometimes referred to as Band 1-Band 6) is used for all signals 3.6 GHz and above.
  • Page 222 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Turn the instrument on and allow it to complete its full boot up process to Signal Analyzer mode. Use the internal 4.8 GHz, −28 dBm calibrator signal as a reference for troubleshooting by pressing Mode Preset, Input/Output, RF Calibrator, 4.8 GHz on the analyzer.
  • Page 223 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Disconnect cable W36 at A13J7, 322.5 MHz output on the Front End Assembly. See Figure 5-7. Select Span, 0 Hz. Figure 5-7 A13A1J7 Location (Options 532, 544) Keysight N9010A EXA Service Guide...
  • Page 224 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Connect A13J7 output to a functioning spectrum analyzer and verify the 322.5 MHz intermediate frequency is measuring −32 ± 4 dB as shown in Figure 5-8. Figure 5-8 322.5 MHz Intermediate Frequency If this power level is correct the Front End assembly is operating correctly in high band.
  • Page 225 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting High Band #2 signal path utilizes a high band mixer internal to the A13 Front End Assembly for input frequencies from 17.0 GHz to 34.5 GHz. High Band #3 signal path utilizes a high band mixer internal to the A13 Front End Assembly for input frequencies from 34.4 to 44 GHz.

  • Page 226: Troubleshooting A High Band Problem

    RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Troubleshooting a High Band Problem Refer to the RF Highband Path #1 Block Diagram (Option 532, 544) in Chapter and follow the instructions in the settings box. To enable the internal 4.8 GHz, −28 dBm calibrator signal press Input/Output, RF Calibrator, 4.8 GHz.
  • Page 227 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting To perform the YTF alignment, reconnect W46 or W7 cable, and press System, Alignments, More, Ad vanced, Characterize Preselector. The routine may take several minutes to align the YTF. Display the 4.8 GHz calibrator signal on screen as explained in the quick check section.
  • Page 228 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting A9 Input Attenuator A and A10 Input Attenuator B Verification Calibrator Switch Test On the A16 Reference assembly, disconnect semi rigid cable W19 from A16J701 and measure A16J701 with a spectrum analyzer. Expected signal is 4.8 GHz at −28 dBm ±...
  • Page 229 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting L.O. Synthesizer Assembly Verification Press the following keys on the analyzer: Mode Preset FREQ (Channel), 5 GHz SPAN (X Scale), Zero Span Refer to Figure 5-12. Disconnect cable W4 at A14J740 of the L.O. Synthesizer Assembly (1).
  • Page 230 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Connect the functioning Spectrum Analyzer and appropriate high frequency cable and connector to A14J740. Adjust the analyzer to measure a signal at 5322.5 MHz at +16 dBm ± 4 dB as shown in Figure 5-13.
  • Page 231 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting Adjust the functioning spectrum analyzer to measure a signal at 4.8 GHz at +4.5 dBm ± 2 dB as shown in Figure 5-14. Figure 5-14 4.8 GHz Signal If this power level is incorrect, the most probable cause is the A16 Reference Assembly.
  • Page 232 RF Section Troubleshooting (Millimeter-Wave Analyzers) Troubleshooting High Band Preamp (Option P07, P13, P26, P32, P44) If a preamp option listed above is installed, the High Band preamp can be verified as follows: View the 4.8 GHz calibrator signal on screen. Press AMPTD, More, Internal Preamp, Full Range to activate the preamp.The expected operation is the signal level will not change more than +/- 0.5 dB and the noise floor will increase due to the fact the input attenuation was automatically increased.

  • Page 233: Front End Control Troubleshooting

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 6 Front End Control Troubleshooting What You Will Find in This Chapter The following information is found in this chapter: A15 Front End Control Description on page 234 A15 Front End Control Assembly Troubleshooting on page 239...

  • Page 234: A15 Front End Control Description

    Front End Control Troubleshooting A15 Front End Control Description A15 Front End Control Description Purpose The A15 Front End Controller board functionality can be broken down into (3) main categories 1. Provides switch control logic and bias voltages to the major RF front end assemblies in the analyzer.
  • Page 235 Front End Control Troubleshooting A15 Front End Control Description Standard RF Assemblies Controlled by the A15: — A9 Input Attenuator A (4 dB total for options 503, 507, 513, and 526, 10 dB total for options 532 and 544) — A10 Input Attenuator B (66 dB total for options 503, 507, 513, and 526, 60 dB total for options 532 and 544) —...
  • Page 236 Front End Control Troubleshooting A15 Front End Control Description Table 6-1 A15 Option Related Control Option Description Physical Location in Analyzer A15 Support Preamplifier, 3.6 GHz A15 to A13 Preamplifier, 7.0 GHz A15 to A11 Preamplifier, 32 GHz A15 to A11 EFEC, S-EFEC Preamplifier, 44 GHz A15 to A11...
  • Page 237 Front End Control Troubleshooting A15 Front End Control Description Figure 6-1 A15 Front View, Physical Connectors (EFEC) Figure 6-2 A15 Front View, Physical Connectors (standard FEC) Keysight N9010A EXA Service Guide...
  • Page 238 Front End Control Troubleshooting A15 Front End Control Description The table below describes the connector location and the final destinations of the RF signal, switch control logic or bias voltage. Table 6-2 A15 Connectors and Destinations A15 Connector Designation Description Destination EFEC-Lite EFEC,...

  • Page 239: A15 Front End Control Assembly Troubleshooting

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting A15 Front End Control Assembly Troubleshooting The N9020A, MXA Signal Analyzer utilizes an RF front end troubleshooting board that can be used to verify some, but not all of the control circuitry on the N9010A, EXA Signal Analyzer due to the additions of front end assemblies.

  • Page 240: Verifying Input Attenuator A, Input Attenuator B, Low Band Switch Logic And Power Supplies

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Verifying Input Attenuator A, Input Attenuator B, Low Band Switch Logic and Power Supplies 1. Turn off the instrument. 2. Disconnect ribbon cables from A15J700 and A15J800 as shown Figure 6-3.
  • Page 241 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting 3. Connect the E4410-60115 RF Front End Troubleshooting board to the A15 Front End Control board using the E4410-60157 attenuator control cable. When connecting the attenuator control cable, E4410-60157, note that one end has two 10-pin connectors with one connector extending beyond the other.
  • Page 242 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting 5. Place the RF front end troubleshooting board on an ESD safe bag or foam to ensure nothing shorts out. See Figure 6-5. Figure 6-5 RF Front End Troubleshooting Board Placement 6.
  • Page 243 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Power Supply Verification Looking at the test board, verify power supply green LED's DS5, DS6, DS7 and DS8 located under the J2 connector are turned on. Additionally red LED's DS9 and DS10 should also be on.
  • Page 244 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting The analyzer default setting for RF Coupling is AC mode. Verify the AC Select LED DS14 is illuminated at this time. Press Input/Output, RF Input, RF Coupling, AC/DC to DC on the analyzer. DS14 should turn off and DS11, DC Select LED should illuminate.
  • Page 245 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Input Attenuator A Control Logic Verification (Option 532 or 544) Ignore DS11 in this procedure. Press System, Show, Hard ware. Look for an entry for the Low Band Switch and verify that the HW ID is 45. If the HW ID is something other than 45 (for example, 10) or there is no entry for the Low Band Switch, the analyzer will control the attenuators as if they are 26.5 GHz attenuators, not the 50 GHz attenuators that are actually installed.
  • Page 246 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Input Attenuator B Control Logic Verification (Option 503, 507, 513, 526) Press AMPTD, Attenuation 6 dB on the analyzer and verify the 6 dB Step LED DS17 is illuminated. Change to the input attenuation settings found in Table and verify the proper LED's illuminate on the Front End Troubleshooting board according to...
  • Page 247 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Input Attenuator B Control Logic Verification (Option 532 or 544) Press AMPTD, Attenuation 10 dB on the analyzer and verify that the 10 dB Step LED DS18 is illuminated. Table 6-8 Input Attenuator B LED’s (Opt 543, 544, 550) Attenuator Setting DS17...
  • Page 248 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Low Band Switch Control Logic Verification (Option 507, 513, 526 only) If your EXA has Option 532 or 544 skip to “Disconnect RF Front End Troubleshooting Board” on page 249. Press Mode Preset on the analyzer.
  • Page 249 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Disconnect RF Front End Troubleshooting Board You do not need the RF front end troubleshooting board to test out the remaining front end hardware components. At this point it is advisable to shutdown the analyzer and disconnect the test board and cables.

  • Page 250: Preselector Tune Output

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Preselector Tune Output The Presel Tune connector A15J300 (FEC) or A15J302 (EFEC, EFEC-Lite, S-EFEC) is a test point used to verify the internal A12, YIG Tuned Filter drive voltage variations with center frequency. The YTF is used in the high band path (3.6 GHz to the analyzer’s maximum frequency).

  • Page 251: Verifying Microwave Preselector Bypass Switch (Option Mpb)

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Table 6-12 Preselector Tune Output Voltages (Option 532, 550) Center Frequency ~ Tune Vol tage Valid Frequency (GHz) (VDC) Range Option 42.5 7.75 43.5 Even if the voltages listed in the table are correct it does not guarantee the proper control current is getting to the YTF.
  • Page 252 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Figure 6-6, Figure 6-7, and Figure 6-8 illustrate the measurement location where the oscilloscope probe should be used to measure the logic. There are two connector bodies with three wires each. On one connector, the three wires are green, black and orange.
  • Page 253 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Figure 6-7 SW4 Connector Location (Option 532 and 544) Figure 6-8 Connector Close-up To verify the control logic, press Mode Preset on the analyzer. Press FREQ, 5 GHz, SPAN, 1 MHz, AMPTD, More 1 of 2, uW Path Ctrl. Standard Path is selected by default.
  • Page 254 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Figure 6-9 Connector Detail The voltage should be ~21.5 VDC steady state at this point. When you switch from Standard Path to uW Preselector Bypass, you should see a negative going pulse to 0 VDC on the oscilloscope for ~15 mS before the voltage returns to ~21.5 VDC steady state.
  • Page 255 Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Monitor the yellow or orange wires on each connector, one at a time. The yellow or orange wire starts at ~21.5 VDC. When switching from uW Preselector Bypass to Standard Path, you should see a negative going pulse to 0 VDC on the oscilloscope for ~15 mS before the voltage returns to ~21.5 VDC steady state.

  • Page 256: Verifying Aux If Out, Rear Panel (Option Cr3, Crp Only)

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Verifying Wideband IF Out (A15J901, Option B40 only) The outer cover and top shield need to be removed to verify A15J901 output. Refer to Chapter 15, “Assembly Replacement Procedures” for the removal procedure.

  • Page 257: Verifying Option Cr3

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Verifying Option CR3 Press the following keys on the analyzer: Mode, Spectrum Analyzer, Mode Preset, Input/Output, RF Calibrator, 50 MHz, Freq, 50 MHz, Span, 0 Hz, System, Alignments, Auto Align, Off, Input/Output, More 1 of 2, Output Config, Aux IF Out, Second IF Connect the Aux I.F.

  • Page 258: Verifying Option Crp

    Front End Control Troubleshooting A15 Front End Control Assembly Troubleshooting Verifying Option CRP Press the following keys on the analyzer: Mode, Spectrum Analyzer, Mode Preset, Input/Output, RF Calibrator, 50 MHz, Freq, 50 MHz, Span, 0 Hz, System, Alignments, Auto Align, Off, Input/Output, More 1 of 2, Output Config, Aux IF Out, Arbitrary IF.

  • Page 259: Analog/Digital If Troubleshooting

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 7 Analog/Digital IF Troubleshooting What You Will Find in This Chapter The following information is presented in this chapter: 1. Theory of operation of the IF section. 2. Isolating the cause of a hardware problem by verifying the functionality of assemblies in the IF section signal path.
  • Page 260 Analog/Digital IF Troubleshooting What You Will Find in This Chapter The following sections provide for each assembly a description of how the assembly works and then gives information to help you troubleshoot the assembly. Each description explains the purpose of the assembly, describes the main components, and lists external connections to the assembly.

  • Page 261: 25 Mhz Bw If Section

    Analog/Digital IF Troubleshooting 25 MHz BW IF Section 25 MHz BW IF Section A2 Analog I.F. Assembly Description The analyzer’s RF input signal is down converted to a 322.5 MHz intermediate frequency in the A13 RF Front End Assembly. This 322.5 MHz signal is the input to the A2 Analog I.F.

  • Page 262: A2 Analog I.f. Assembly Theory Of Operation

    Analog/Digital IF Troubleshooting 25 MHz BW IF Section A2 Analog I.F. Assembly Theory of Operation Refer to Chapter 12, “Block Diagrams.”. Input Switch and Filter A 322.5 MHz input signal is received from the A13 RF Front End Assembly. For analyzers equipped with Option CR3 and/or CRP, the 322.5 MHz input signal is routed from the A13 Front End Assembly to the IF MUX on the A15 Front End Control Assembly and from there to the A2 Analog IF Assembly.
  • Page 263 Analog/Digital IF Troubleshooting 25 MHz BW IF Section Post Down Conversion Amplification and Prefiltering The 22.5 MHz I.F. goes through a fixed gain amplifier. Then prefilters are switched in and out. The signal then goes through a variable gain amplifier. The prefilters provide four single-pole filters to limit the bandwidth of the signal reaching the ADC on the A3 Digital I.F.
  • Page 264 Analog/Digital IF Troubleshooting 25 MHz BW IF Section Anti-Alias Filter and Final Amplifier The anti-alias filters attenuate unwanted out-of-band noise and distortion products. The first anti-alias filter is centered at 22.5 MHz and is 25 MHz wide. The signal can bypass the second anti-alias filter when the analyzer utilizes either the IQ Analyzer swept, or wide-band demod.

  • Page 265: A2 Analog I.f. Troubleshooting

    Analog/Digital IF Troubleshooting 25 MHz BW IF Section A2 Analog I.F. Troubleshooting There are three steps to verify the A2 Analog I.F. Assembly. — Measure the input power and frequency accuracy of the 322.5 MHz signal (from the A13 RF Front End assembly or the A15 Front End Control Assembly).
  • Page 266 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 8. Carefully disconnect the W15 or W36 cable at A13J7 as shown in Figure Figure 7-2. Figure 7-1 A13 RF Front End Assembly - RF/Microwave Instruments Figure 7-2 A13 RF Front End Assembly - Millimeter Wave Instruments Keysight N9010A EXA Service Guide...
  • Page 267 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 9. Connect A13J7 to a functioning spectrum analyzer using the appropriate SMA connectors and cables. 10.Press Freq, 322.5 MHz, Span, 1 MHz, Peak Search on the functioning spectrum analyzer 11.The analyzer should read 322.5 MHz at −30 dBm ± 3 dBm as shown in Figure 7-3.
  • Page 268 Analog/Digital IF Troubleshooting 25 MHz BW IF Section Verifying the 22.5 MHz Output Power 1. Turn the instrument off. 2. Turn the instrument over so the bottom side of the analyzer is facing up. 3. Turn on the N9010A Signal Analyzer and wait for the instrument to complete the boot up process.
  • Page 269 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 9. Connect the W13 cable to the MMCX female to SMA female connector. Use an appropriate cable to go from the SMA connector to the RF input of a functioning spectrum analyzer to verify the 22.5 MHz I.F. and amplitude is correct.
  • Page 270 Analog/Digital IF Troubleshooting 25 MHz BW IF Section Verifying the 300 MHz L.O. Input Power from the A16 Reference Assembly 1. Refer to Figure 7-6, carefully disconnect the W14 at A2J300 Figure 7-6 A2 Analog I.F. Cables 2. Connect the W14 cable to the MMCX female to SMA female connector. Use an appropriate cable to go from the SMA connector to the RF input of a functioning spectrum analyzer.
  • Page 271 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 4. The analyzer marker should read 300 MHz at 10 dBm ± 3 dBm as shown in Figure 7-7. Figure 7-7 300 MHz L.O. If the 300 MHz signal is not measuring the correct power level, see the A16 Reference Assembly troubleshooting section in this service guide.

  • Page 272: A3 Digital I.f. Assembly Description

    Analog/Digital IF Troubleshooting 25 MHz BW IF Section A3 Digital I.F. Assembly Description The A3 Digital I.F. has circuitry that is needed to analyze complex communication signals that can occupy up to 10 MHz of information bandwidth. It digitizes the final 22.5 MHz I.F. from the A2 Analog I.F. board, by processing the time domain continuous data into I/Q (in-phase and quadrature) signals before sending the data to the A4 CPU assembly for further processing and front panel display.

  • Page 273: A3 Digital I.f. Assembly Theory Of Operation

    Analog/Digital IF Troubleshooting 25 MHz BW IF Section A3 Digital I.F. Assembly Theory of Operation Refer to Chapter 12, “Block Diagrams.”. Data Acquisition The 22.5 MHz IF comes from the A2 Analog IF assembly. The input level to the A3 Digital IF assembly is −25 dBm. The IF input has a 25 MHz bandwidth centered at 22.5 MHz.
  • Page 274 Analog/Digital IF Troubleshooting 25 MHz BW IF Section Noise Source Voltage Regulator Various external noise sources can be connected to the rear panel of the analyzer. These noise sources require a very accurate 28 volt DC power supply. The 28 volt BNC output connector is used with the 346 series noise sources. The Smart Noise Source (SNS) interface includes power switching for the 28 volt and 15 volt power supply.

  • Page 275: A3 Digital I.f. Troubleshooting

    Analog/Digital IF Troubleshooting 25 MHz BW IF Section A3 Digital I.F. Troubleshooting Verifying the 22.5 MHz Input Power 1. Perform an instrument shut down. 2. Remove the cover of the analyzer. Refer to Chapter 15, “Assembly Replacement Procedures”, on page 463 in this service guide.
  • Page 276 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 9. Refer to Figure 7-8, carefully disconnect W13 at A3J15. Figure 7-8 A3 Digital I.F. Cables 10. Connect the W13 cable to the MMCX female to SMA female connector. Use an appropriate cable to go from the SMA connector to the RF input of a functioning spectrum analyzer.
  • Page 277 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 12.The analyzer should read 22.5 MHz at −25 dBm ± 4 dB as shown in Figure 7-9. Figure 7-9 A3 Digital I.F. Input If the 22.5 MHz signal is not measuring the correct power level, see “A2 Analog I.F.
  • Page 278 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 8. To continue verifying press SPAN, Zero Span. Verify the input attenuator on the analyzer is set to 10 dB. (Look near the top of the display near the center and verify Atten: 10 dB) If the analyzer is not in 10 dB of input attenuation press AMPTD, Attenuation, 10 dB.
  • Page 279 Analog/Digital IF Troubleshooting 25 MHz BW IF Section 12.The analyzer should read 10 MHz at +5 dBm ± 3 dBm as shown in Figure 7-11. Figure 7-11 A3 Digital I.F. Reference Input If the 22.5 MHz and 10 MHz signals measure the correct frequency and amplitude and yet the display is not processing the signal properly, the most probable causes are the A3 Digital IF or the A4 CPU.

  • Page 280: 40 Mhz Bw If Section

    Analog/Digital IF Troubleshooting 40 MHz BW IF Section 40 MHz BW IF Section A2 Analog IF Assembly Description When the 10 MHz or 25 MHz IF Path is selected, or when any swept measurement is made, the analyzer's RF input signal is down converted to a 322.5 MHz intermediate frequency in the A13 RF Front End Assembly.

  • Page 281: A2 Analog If Assembly Theory Of Operation

    Analog/Digital IF Troubleshooting 40 MHz BW IF Section A2 Analog IF Assembly Theory of Operation Refer to Chapter 12, “Block Diagrams.”. Input Switch and Filter A 322.5 MHz input signal is received from the A15 Front End Control Assembly. The signal then goes through a band pass filter centered at 322.5 MHz with a 25 MHz bandwidth.
  • Page 282 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Post Down Conversion Amplification and Prefiltering The 22.5 MHz IF goes through a fixed gain amplifier. Then prefilters are switched in and out. The signal then goes through a variable gain amplifier. The prefilters provide four single-pole filters to limit the bandwidth of the signal reaching the ADC on the A3 Digital IF assembly.
  • Page 283 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Anti-Alias Filter and Final Amplifier The anti-alias filters attenuate unwanted out-of-band noise and distortion products. The first anti-alias filter is centered at 22.5 MHz and is 25 MHz wide. The signal can bypass the second anti-alias filter when the analyzer utilizes either the IQ Analyzer swept, or wide-band demod.

  • Page 284: A2 Analog If Troubleshooting

    Analog/Digital IF Troubleshooting 40 MHz BW IF Section A2 Analog IF Troubleshooting There are three steps to verify the A2 Analog IF Assembly. — Measure the input power and frequency accuracy of the 322.5 MHz signal (from the A13 RF Front End assembly) —...
  • Page 285 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 8. Carefully disconnect W37 cable at A15J900 as shown in Figure 7-12. Figure 7-12 A15 RF Front End Control Assembly 9. Connect A15J900 to a functioning spectrum analyzer using the appropriate MMCX connectors and cables. 10.Press Freq, 322.5 MHz, Span, 1 MHz, Peak Search on the functioning spectrum analyzer.
  • Page 286 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 11.The analyzer should read 322.5 MHz at −23 dBm ± 3 dB as shown in Figure 7-13. Figure 7-13 A15 322.5 MHz Output If the 322.5 MHz signal is not measuring the correct power level, refer to Chapter 4, “RF Section Troubleshooting (RF/Microwave Analyzers).”...
  • Page 287 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Verifying the 22.5 MHz Output Power 1. Perform an instrument shutdown. 2. Turn the instrument over so the bottom side of the analyzer is facing up. 3. Turn on the analyzer and wait for the instrument to complete the boot up process.
  • Page 288 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 9. Connect the W41 cable to the MMCX female to SMA female connector. Use an appropriate cable to go from the SMA connector to the RF input of a functioning spectrum analyzer to verify the 22.5 MHz I.F. and amplitude is correct.
  • Page 289 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Verifying the 300 MHz LO Input Power from the A16 Reference Assembly 1. Refer to Figure 7-16, carefully disconnect the W14 at A2J300. Figure 7-16 A2 Analog IF Cables 2. Connect the W14 cable to the MMCX female to SMA female adapter. Use an appropriate cable to go from the SMA adapter to the RF input of a functioning spectrum analyzer.
  • Page 290 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 4. The analyzer marker should read 300 MHz at 10 dBm ± 3 dB as shown in Figure 7-17. Figure 7-17 300 MHz LO 5. If the 300 MHz signal is not measuring the correct power level, see the A16 Reference Assembly troubleshooting section in this service guide.

  • Page 291: A3 Digital If Assembly Description

    Analog/Digital IF Troubleshooting 40 MHz BW IF Section A3 Digital IF Assembly Description The A3 Digital I.F. has circuitry that is needed to analyze complex communication signals that can occupy up to 40 MHz of information bandwidth. This assembly has two inputs: 1.

  • Page 292: A3 Digital If Assembly Theory Of Operation

    Analog/Digital IF Troubleshooting 40 MHz BW IF Section A3 Digital IF Assembly Theory of Operation Refer to Chapter 12, “Block Diagrams.”. Data Acquisition The 22.5 MHz IF comes from the A2 Analog IF assembly. The input level to the A3 Digital IF assembly is −25 dBm when observing the 50 MHz calibrator signal.
  • Page 293 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Reconstruction Analog data from the digital FPGA, T2, is fed into a DAC that recreates an analog signal. It can be either video or the demodulated audio. The signal can be routed to the analyzer’s audio system (to listen to the demodulated signals) or to the ANALOG OUT connector on the rear panel.

  • Page 294: A3 Digital If Troubleshooting

    Analog/Digital IF Troubleshooting 40 MHz BW IF Section A3 Digital IF Troubleshooting Verifying the 22.5 MHz Input Power 1. Perform an instrument shutdown. 2. Remove the cover of the analyzer. Refer to Chapter 15, “Assembly Replacement Procedures” in this service guide. 3.
  • Page 295 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 9. Refer to Figure 7-18, carefully disconnect W41 cable at A3J19. Figure 7-18 A3 Digital IF Cables 10.Connect the W41 cable to the MMCX female to SMA female connector. Use an appropriate cable to go from the SMA connector to the RF input of a functioning spectrum analyzer to verify the 22.5 MHz I.F.
  • Page 296 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 12.The analyzer should read 22.5 MHz at −25 dBm ± 4 dB as shown in Figure 7-19. Figure 7-19 22.5 MHz IF Input 13.If the 22.5 MHz signal is not measuring the correct power level, see “A2 Analog I.F.
  • Page 297 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Verifying the 250 MHz IF Input Power (Option B40 only) Perform this procedure only if the analyzer is equipped with Option B40, Analysis Bandwidth, 40 MHz 1. Perform an instrument shutdown. 2. Remove the cover of the analyzer. Refer to Chapter 15, “Assembly Replacement Procedures”...
  • Page 298 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 10.Refer to Figure 7-20, carefully disconnect W38. Figure 7-20 A3 Digital IF Cables 11. Connect the W38 cable to the MMCX female to SMA female connector. Use an appropriate cable to go from the SMA connector to the RF input of a functioning spectrum analyzer to verify the 250 MHz I.F.
  • Page 299 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 13.The analyzer marker should read 250 MHz at −30 dBm ± 4 dB as shown in Figure 7-21. Figure 7-21 250 MHz IF Input 14.If the 250 MHz signal is not measuring the correct power level, see Chapter 6, “Front End Control Troubleshooting”...
  • Page 300 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Verifying the 100 MHz Reference Input 1. Perform an instrument shutdown. 2. Remove the cover of the analyzer. Refer to Chapter 15, “Assembly Replacement Procedures” in this service guide. 3. Turn the instrument over so that the bottom side of the analyzer is facing 4.
  • Page 301 Analog/Digital IF Troubleshooting 40 MHz BW IF Section 10.The analyzer marker should read 100 MHz at +10 dBm ± 4 dB as shown in Figure 7-23. Figure 7-23 100 MHz Reference Input 11.If the 100 MHz signal is measuring incorrectly, see Chapter 8, “L.O.
  • Page 302 Analog/Digital IF Troubleshooting 40 MHz BW IF Section Keysight N9010A EXA Service Guide...

  • Page 303: What You Will Find In This Chapter

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 8 L.O. Synthesizer/Reference Troubleshooting What You Will Find in This Chapter The following information is found in this chapter: A14 L.O. Synthesizer Assembly Description on page 304 A14 L.O. Synthesizer Theory of Operation on page 305 A14 L.O.

  • Page 304: L.o. Synthesizer/Reference Troubleshooting

    L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Assembly Description A14 L.O. Synthesizer Assembly Description Purpose The L.O. Synthesizer assembly provides the 1st Local Oscillator to the A13 RF Front End Assembly for RF conversion. This assembly has the following inputs and outputs: —...

  • Page 305: A14 L.o. Synthesizer Theory Of Operation

    L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Theory of Operation A14 L.O. Synthesizer Theory of Operation The main oscillator is a low frequency Voltage Controlled Oscillator (VCO) that has a frequency range from 570 MHz to 1150 MHz. This VCO has low-phase noise that is multiplied to the desired 1st LO frequency range.

  • Page 306: A14 L.o. Synthesizer Troubleshooting

    L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting A14 L.O. Synthesizer Troubleshooting Turn on the analyzer and wait for the instrument to complete the boot up process. There are (6) processes to perform, which will verify the L.O. Synthesizer Assembly is functioning properly: —...

  • Page 307: Verifying The 4800 Mhz Input Power & Frequency Stability

    L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting Verifying the 4800 MHz Input Power & Frequency Stability: — Turn on the analyzer and wait for the instrument to complete the boot up process. — Press FREQ, 4.2 GHz, SPAN, Zero Span. —...
  • Page 308 L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting — The analyzer marker should read 4800 MHz at +4.5 dBm ± 2 dB as shown in Figure 8-3. Figure 8-3 4800 MHz Wide Span Keysight N9010A EXA Service Guide...
  • Page 309 L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting — Verify the 4800 MHz input signal from the A16 Reference Assembly is stable by pressing SPAN, 50 kHz, BW, 1 kHz. The signal on the functioning spectrum analyzer should be very stable both in frequency and power as shown in Figure 8-4.

  • Page 310: Verifying The 1St L.o. Output Power

    L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting Verifying the 1st L.O. Output Power: — Turn on the analyzer and wait for the instrument to complete the boot up process. — If the analyzer has Option 503, press FREQ, 600 MHz, Span, Zero Span. If the analyzer does not have Option 503 press FREQ, 4.2 GHz, SPAN, Zero Span.
  • Page 311 L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting Figure 8-5 4.5225 GHz 1st L.O. Measurement If the 4.5225 GHz or 5.7225 GHz signal is not measuring the correct power level, the LO Synthesizer assembly is the most probable cause. Continue changing the center frequency of the analyzer as per Table 8-1 measure the LO output expected frequency and power using the functioning spectrum analyzer.
  • Page 312 L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting Table 8-1 Center Frequency of analyzer Expected 1st L.O. Frequency Expected 1st L.O. Power (dBm) (MHz) (GHz) @A14J704 @A14J704 4.5225 +16.5 ± 3 dB 4200 4.6225 +16 ± 3 dB 4300 5.7225 +16 ± 3 dB 5.8225 +16 ±...
  • Page 313 L.O. Synthesizer/Reference Troubleshooting A14 L.O. Synthesizer Troubleshooting Figure 8-6 5.8225 GHz 1st L.O. Measurement Figure 8-7 7.3225 GHz 1st L.O. Measurement Keysight N9010A EXA Service Guide...

  • Page 314: A16 Reference Assembly Description

    L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Description A16 Reference Assembly Description Purpose The A16 Reference Assembly provides the fundamental reference signals from which all instrument local oscillator and synchronous timing signals are derived The reference board also uses these same signals to generate CW and modulated RF calibration signals and a 10 MHz time base signal for the instrument For analyzers with serial prefixes ≥...
  • Page 315 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Description Table 8-2 A16 Reference Assembly Signals Signal Description From Location Originates From To Location Purpose External Reference Input Input from User A16704 Phase Lock analyzer with user (1 to 50 MHz, reference. -5 dBm to +10 dBm) 10 MHz Out DIF A16J710 10 MHz Reference...
  • Page 316 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Description b. The 100 MHz signal from A16J706 is used as the reference for the optional A3 Digital IF which sup- ports analysis bandwidths up to 40 MHz on analyzers with serial prefix < MY/SG/US5648. This A3 is used on analyzers with Options B40, MPB, or DP2.

  • Page 317: A16 Reference Assembly Troubleshooting

    L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting A16 Reference Assembly Troubleshooting In order to measure signals on analyzers with serial prefix < MY/SG/US5648, you will need to remove the rear panel. Refer to “Rear Panel” removal procedure on page 530 for details.
  • Page 318 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-9 A16 Reference LEDs, Serial Prefix > MY/SG/US5648 Figure 8-10 A16 Reference Assembly Layout, Serial Prefix < MY/SG/US5648 Keysight N9010A EXA Service Guide...
  • Page 319 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Table 8-3 A16 Reference Assembly Signal Measurement Details Signal Signal Expected Expected Power Special Instrument Figure Description Location Frequency Level Cond itions (MHz) (dBm) Figure 50 MHz A16J705 50 MHz −26 to −29 dBm While monitoring A16J705 Ecal Out typical...
  • Page 320 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-11 50 MHz Ecal Out Figure 8-12 4.8 GHz 2nd LO Out Keysight N9010A EXA Service Guide...
  • Page 321 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-13 4.8 GHz 1st LO Ref Out Figure 8-14 50 MHz Ref Out Keysight N9010A EXA Service Guide...
  • Page 322 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-15 4.8 GHz Ref Out Figure 8-16 2.4 GHz Ref Output (Serial Prefix ≥ MY/SG/US5648) Keysight N9010A EXA Service Guide...
  • Page 323 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-17 2.4 GHz Reference Out (Serial Prefix < MY/SG/US5648) Figure 8-18 300 MHz LO AIF Keysight N9010A EXA Service Guide...
  • Page 324 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-19 100 MHz Ref Out Figure 8-20 100 MHz Ref B Out Keysight N9010A EXA Service Guide...
  • Page 325 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Figure 8-21 10 MHz Output Keysight N9010A EXA Service Guide...

  • Page 326: Diagnostic Leds

    L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Diagnostic LEDs Serial Prefix ≥ MY/SG/US5648 There are two sets of diagnostics LEDs on the A16 Reference Assembly. Six LEDs are on the right side of the A16 Reference Main board and five LEDs are on the A16A1 Reference Daughter board.
  • Page 327 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Serial Prefix < MY/SG/US5648 The diagnostic LEDs are located near the oven oscillator near the right side of the board. Refer to Figure 8-10. Table 8-5 lists the diagnostic LEDs and what their status indicates. Table 8-5 LED Activity LED Number...
  • Page 328 L.O. Synthesizer/Reference Troubleshooting A16 Reference Assembly Troubleshooting Keysight N9010A EXA Service Guide...

  • Page 329: Cpu/Disk Drive Troubleshooting

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 9 CPU/Disk Drive Troubleshooting What You Will Find in This Chapter Each section first describes how the assembly works, then gives information to help you troubleshoot the assembly. Each description explains the purpose of the assembly, describes the main components, and lists external connections to the assembly.

  • Page 330: A4 Cpu Description

    CPU/Disk Drive Troubleshooting A4 CPU Description A4 CPU Description If the CPU board is suspect in an instrument failure, a full description of the instrument boot process is described in Chapter 2, “Boot Up and Initialization Troubleshooting”. CPU Identification Since the EXA was introduced, there have been a total of 7 CPU versions used. Four have been standard (N9010A-PC1, N9010A-PC3, N9010A-PC5, and N9010A-PC7) and three provided optional higher performance (N9010A-PC2, N9010A-PC4, and N9010A-PC6).
  • Page 331 CPU/Disk Drive Troubleshooting A4 CPU Description Table 9-1 CPUs used in the EXAs Description Instrument SW CPU Option Serial Number Frequency Disk Drive Revision Range Range Option Intel ® Pentium ™ M <A.02.00 None Listed <MY/SG/US500 503, 507, Internal Processor 1600 MHz 60000 513, 526 >A.02.00...

  • Page 332: Disk Drive

    CPU/Disk Drive Troubleshooting A4 CPU Description The CPU can also be identified by its CPU assembly part number. For older CPUs, this part number can only be viewed by removing the CPU assembly from the rear of the analyzer. For newer CPUs, this part number appears below the external monitor connector and is visible with the CPU installed in the analyzer.

  • Page 333: Power Supply Control

    CPU/Disk Drive Troubleshooting A4 CPU Description Power Supply Control The power control line from the front panel momentary power switch connects to the A4 CPU board assembly. When the front panel power switch is turned on the A4 CPU board assembly pulls the PS_ON line to the A6 Power Supply assembly to a TTL low level, which tells the power supply to turn on.

  • Page 334: Rear Panel Connectivity

    4 GBytes of DDR SDRAM in two 200-pin SODIMM memory modules. While the memory controller chips do support a wide range of DDR memory types, only memory fully qualified by Keysight Technologies is supported. Full qualification includes mechanical vibration and shock, thermal and power dissipation and the basic electrical characteristics.

  • Page 335: System Processor

    CPU/Disk Drive Troubleshooting A4 CPU Description While the A4A1 SRAM Module system memory can be obtained separate from the A4 CPU board assembly for instruments with the 184-pin DIMM memory modules, the 200-pin SODIMM memory modules are not field replaceable. All replacement A4 CPU board assemblies come with the appropriate memory modules installed.

  • Page 336: A5 Disk Drive

    CPU/Disk Drive Troubleshooting A5 Disk Drive A5 Disk Drive There are two different types of A5 Disk Drives available. Early analyzers used a typical hard disk drive, while more recent analyzers use a SSD drive which is a solid state (FLASH) drive. There are also different drive capacities and interface types that have been, and are being used, and due to continual changes being made by the drive manufacturers these will continue to change from time to time.

  • Page 337: Overview

    CPU/Disk Drive Troubleshooting A5 Disk Drive Overview The A5 Disk Drive assembly has been divided up into four different partitions. They are: This partition contains the operating system and software installed by Keysight. This is an open system which means you can install additional software, which should be installed on the C: drive.

  • Page 338: Troubleshooting Software Related Issues

    CPU/Disk Drive Troubleshooting Troubleshooting software related issues Troubleshooting software related issues The C: drive contains the Windows operating system (either Windows XP or Windows for Embedded Systems 7, WES7) software and the X-Series software. Boot problems can be caused by either a failure of the Windows operating system or the X-Series software.

  • Page 339: Reloading The X-Series Software

    CPU/Disk Drive Troubleshooting Reloading the X-Series Software Reloading the X-Series Software The X-Series software contains all the required components for the signal analyzer application as well as all software options. If the X-Series software has become corrupt the Windows XP operating system will boot but the X-Series software application will fail to start.

  • Page 340: Disk Drive Recovery Process

    CPU/Disk Drive Troubleshooting Disk Drive Recovery Process Disk Drive Recovery Process The Instrument Image Recovery system (or Agilent Recovery System in older analyzers) can be used to repair software errors on the instrument's disk drive, or to restore the original factory configuration of the system software. The Instrument Image Recovery System is stored in a separate hidden disk drive partition.

  • Page 341: Using The Instrument Recovery System

    1. Make sure the instrument is turned off. 2. Turn on the instrument. 3. After the “Agilent Technologies” or "Keysight Technologies" screen is displayed the following screen contents will be displayed for 5 seconds. 4. Press the down arrow key to move the highlight to “Agilent Recovery System”...
  • Page 342 CPU/Disk Drive Troubleshooting Disk Drive Recovery Process Keysight N9010A EXA Service Guide...

  • Page 343: 10 Power Supply/Midplane Troubleshooting

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 10 Power Supply/Midplane Troubleshooting What You Will Find in This Chapter The following information is found in this chapter: A6 Power Supply Description on page 344 A6 Power Supply Basic Troubleshooting (Cover On) on page 350...

  • Page 344: A6 Power Supply Description

    Power Supply/Midplane Troubleshooting A6 Power Supply Description A6 Power Supply Description Purpose The A6 Power Supply assembly provides all the necessary DC voltages for the entire signal analyzer to operate correctly. If any of the power supplies are not within their operating voltages, the analyzer will not function. The power supply outputs provide power to all the printed circuit boards, microcircuit assemblies, front panel display and fans, any of which can cause an over current condition if not operating correctly.

  • Page 345: Power Supply Theory Of Operation

    Power Supply/Midplane Troubleshooting A6 Power Supply Description Power Supply Theory of Operation The A6 Power Supply assembly is serviced as an assembly only; no component level repair is supported. The A6 Power Supply assembly provides most all of the necessary DC voltages for the signal analyzer.
  • Page 346 Power Supply/Midplane Troubleshooting A6 Power Supply Description Control Inputs There are a number of control inputs for the A6 Power Supply assembly. They are: PS_ON PS_ON is a signal that when pulled low tells the A6 Power Supply assembly to turn on all of its outputs.
  • Page 347 Power Supply/Midplane Troubleshooting A6 Power Supply Description Fuse The A6 Power Supply has no user replaceable fuse. While there is a fuse internal to the supply this is not meant for field replacement. If the internal fuse is blown, the power supply has experienced a major failure and should be replaced.
  • Page 348 Power Supply/Midplane Troubleshooting A6 Power Supply Description Power Supply Output Signals Table 10-1 describes the output signals from the Power Supply assembly. Table 10-1 Power Supply Output Signals Signal Name Description Maximum Test Load Output Current (Amps) (Amps) +32A 32 Volt Analog power supply. +15A 15 Volt Analog power supply 4.25...
  • Page 349 Power Supply/Midplane Troubleshooting A6 Power Supply Description Table 10-1 Power Supply Output Signals Signal Name Description Maximum Test Load Output Current (Amps) (Amps) DCOM Digital ground. Connected to the common ground point inside the power supply. DCOM_Sense Remote sense for DCOM. PWR_OK Power OK Output.

  • Page 350: A6 Power Supply Basic Troubleshooting

    Power Supply/Midplane Troubleshooting A6 Power Supply Basic Troubleshooting (Cover On) A6 Power Supply Basic Troubleshooting (Cover On) There are no user replaceable fuses on the power supply. If the internal fuse is blown, the power supply has experienced a major failure and should be replaced. If you determine that the power supply is the failed assembly, replace the power supply.
  • Page 351 Power Supply/Midplane Troubleshooting A6 Power Supply Basic Troubleshooting (Cover On) It is possible that some portion of the initial troubleshooting check may fail. Chapter 2 should also be referenced if this is the case. As an example, the A15 Front End Control Assembly may be pulling down the +15 volt supply that is used for the probe power on the front panel.

  • Page 352: A7 Midplane Description

    Power Supply/Midplane Troubleshooting A7 Midplane Description A7 Midplane Description Purpose The Midplane links the following major assemblies: — A4 CPU Assembly — A6 Power Supply Assembly — A8 Motherboard — A16 Reference Assembly Refer to Figure 10-3. The Midplane Assembly (7) plugs into the Motherboard. The CPU, Power Supply, and Reference Assemblies plug directly into the Midplane board from the rear of the instrument.
  • Page 353 Power Supply/Midplane Troubleshooting A7 Midplane Description Power Supply Dithering A triangle wave of approximately 100 Hz is generated and goes directly to the A6 Power Supply assembly. This is used to frequency modulate the power supply switching frequency for the purpose of lowering any power supply related interference.
  • Page 354 Power Supply/Midplane Troubleshooting A7 Midplane Description Figure 10-3 Midplane Item Description A2 Analog I.F. Assembly A3 Digital I.F. Assembly A4 CPU Replacement Kit (w/o disk drive) A6 Power Supply A16 Reference Assembly A14 L.O. Synthesizer Assembly A15 Front End Control Assembly A7 Midplane Assembly The L.O.

  • Page 355: A7 Midplane Assembly Troubleshooting

    Power Supply/Midplane Troubleshooting A7 Midplane Assembly Troubleshooting A7 Midplane Assembly Troubleshooting If there is an analyzer function such as a boot up issue where the power supplies are suspect, view the power supply LED's on the Midplane Assembly by removing the instrument outer cover. See Figure 10-4.
  • Page 356 Power Supply/Midplane Troubleshooting A7 Midplane Assembly Troubleshooting Voltage readings are referenced to ACOM (TP4). All ohmmeter measurements were taken from the power supply test point to ACOM. Due to capacitive effects, wait for the ohmmeter readings to stabilize. Table 10-2 A7 Midplane Board Test Points Power Test...

  • Page 357: 11 Front Panel/Motherboard Troubleshooting

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 11 Front Panel/Motherboard Troubleshooting What You Will Find in This Chapter The following information is found in this chapter: A8 Motherboard Description on page 358 A1 Front Panel Assembly on page 361...

  • Page 358: A8 Motherboard Description

    Front Panel/Motherboard Troubleshooting A8 Motherboard Description A8 Motherboard Description Purpose The Motherboard is an electrical link between many of the electrical assemblies in the instrument. The main functions of this PC board include: — Distribute power — Control and common signals between all the measurement PC boards including the A7 Midplane and the Front Panel Assembly —...
  • Page 359 Front Panel/Motherboard Troubleshooting A8 Motherboard Description The Motherboard is a horizontally mounted, located near the bottom of the analyzer. The Motherboard has the following connector types: — (6) Analog Card Cage Connectors (J1, J11, J31, J41, J51, J61) — (4) Digital Card Cage Signals and voltages using PCI connectors (J4, J12, J32, J42) —...

  • Page 360: A8 Motherboard Troubleshooting

    Front Panel/Motherboard Troubleshooting A8 Motherboard Description A8 Motherboard Troubleshooting There are no troubleshooting procedures for this assembly. If the Motherboard is suspect, it must be replaced. Keysight N9010A EXA Service Guide...

  • Page 361: A1 Front Panel Assembly

    Front Panel/Motherboard Troubleshooting A1 Front Panel Assembly A1 Front Panel Assembly The major components of the A1 Front Frame Assembly are the A1A2 Front Panel Interface Board, A1A3 LCD, A1A4 LCD Inverter Board/DC-DC Converter, and the A1A5 Front Panel USB Interface Board, all of which are serviceable as individual components.
  • Page 362 Front Panel/Motherboard Troubleshooting A1 Front Panel Assembly Keysight N9010A EXA Service Guide...

  • Page 363: What You Will Find In This Chapter

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 12 Block Diagrams What You Will Find in This Chapter The following sections are found in this chapter: RF Lowband Path Block Diagram RF Highband Path #1 Block Diagram...

  • Page 364: Block Diagrams

    Block Diagrams Block Diagrams Block Diagrams Keysight N9010A EXA Service Guide...

  • Page 365: Rf Lowband Path Block Diagram

    OPTION 503, 507, 513, 526 RF/ W N9010A EXA RF BLOCK DIAGRAM (Lowband Path - Input signals < 3.6 GHz) A15 FRONT END CONTROLLER J800 ATTENUATOR CONTROL J700 LOW BAND SWITCH CONTROL (Option MPB) (Option MPB) J801 PRESELECTOR BYPASS CONTROL 6 dB J300 J302...

  • Page 366: Rf Highband Path #1 Block Diagram

    OPTION 507, 513, 526 W N9010A EXA RF BLOCK DIAGRAM (Highband Path #1 - Input signals 3.6 GHz to 13.6 GHz) A15 FRONT END CONTROLLER J800 ATTENUATOR CONTROL J700 LOW BAND SWITCH CONTROL (Option MPB) (Option MPB) J801 PRESELECTOR BYPASS CONTROL 6 dB J300 J302...

  • Page 367: Rf Highband Path #2 Block Diagram

    OPTION 526 W N9010A EXA RF BLOCK DIAGRAM (Highband Path #2 - Input signals 13.6 GHz to 26.5 GHz) A15 FRONT END CONTROLLER J800 ATTENUATOR CONTROL J700 LOW BAND SWITCH CONTROL (Option MPB) (Option MPB) J801 PRESELECTOR BYPASS CONTROL 6 dB J300 J302 PRESELECTOR DRIVER CONTROL...

  • Page 368: Mmw Rf Lowband Path Block Diagram

    OPTION 532, 544 mmW N9010A EXA RF BLOCK DIAGRAM (Lowband Path - Input signals < 3.6 GHz) A15 FRONT END CONTROLLER J800 SWITCH 4 ATTENUATOR CONTROL (Option MPB) J801 PRESELCTOR BYPASS CONTROL J700 LOW BAND SWITCH CONTROL J300 J302 PRESELECTOR DRIVER CONTROL A12 YTF J900 to AIF...

  • Page 369: Mmw Rf Highband Path #1 Block Diagram

    OPTION 532, 544 mmW N9010A EXA RF BLOCK DIAGRAM (Highband Path #1 - Input signals 3.6 to 17.1 GHz) A15 FRONT END CONTROLLER SWITCH 4 J800 ATTENUATOR CONTROL (Option MPB) J801 PRESELCTOR BYPASS CONTROL J700 LOW BAND SWITCH CONTROL J300 J302 PRESELECTOR DRIVER CONTROL A12 YTF...

  • Page 370: Mmw Rf Highband Path #2 Block Diagram

    OPTION 532, 544 mmW N9010A EXA RF BLOCK DIAGRAM (Highband Path #2 - Input signals 17.1 to 34.5 GHz) A15 FRONT END CONTROLLER SWITCH 4 J800 ATTENUATOR CONTROL (Option MPB) J801 PRESELCTOR BYPASS CONTROL J700 LOW BAND SWITCH CONTROL J300 J302 PRESELECTOR DRIVER CONTROL A12 YTF...

  • Page 371: Mmw Rf Highband Path #3 Block Diagram

    OPTION 544 mmW N9010A EXA RF BLOCK DIAGRAM (Highband Path #3 - Input signals 34.5 to 44 GHz) A15 FRONT END CONTROLLER SWITCH 4 J800 ATTENUATOR CONTROL (Option MPB) J801 PRESELCTOR BYPASS CONTROL J700 LOW BAND SWITCH CONTROL J300 J302 PRESELECTOR DRIVER CONTROL A12 YTF J900...

  • Page 372: 25 Mhz Bandwidth I.f. System Block Diagram

    25 MHz BW IF SYSTEM BLOCK DIAGRAM A3 DIGITAL IF 10 MHz 10 MHz OUT From (BNC) A16J710 From A13J7 From A15J900 Capture IF 10 MHz REF Memory 10 MHz LVDS NOISE SOURCE To A3 DRIVE +28V Noise (BNC) 300 kHz/800 kHz A2 ANALOG IF Source 12 MHz...

  • Page 373: 40 Mhz Bandwidth I.f. System Block Diagram

    40 MHz BW IF SYSTEM BLOCK DIAGRAM ECAL IN To A13J6 From A15J926 From A15J705 A3 DIGITAL IF STEP ALIGN OUT WB_ALIGN_DATA N.C. From A15J901 40 MHz BW ST GT PECL -> ECL FELDSPAR_CLK 250 MHz CF FELDSPAR Noise Source ADC2 ADC2 DRIVE...

  • Page 374: (Serial Prefix < My/Sg/Us5648)

    REFERENCE and SYNTHESIZER BLOCK DIAGRAM (Serial Prefix < MY/SG/US5648) To A13J1 A14 LO SYNTHESIZER 571 MHz to Serial Bus 1154 MHz FPGA FRAC-N (from A8) Symv/Int_Swp 2nd LO CONTROLLER A16 REFERENCE LOOP GAIN 4800 MHz CONTROLLER J702 2400 MHz 4800 MHz J200 600 MHz 1st LO Ref...
  • Page 375 REFERENCE and SYNTHESIZER BLOCK DIAGRAM (Serial Prefix > MY/SG/US5648) To A13J1 A16 REFERENCE A14 LO SYNTHESIZER A16A1 REFERENCE DAUGHTER 571 MHz to 4.8 GHz Serial Bus 1154 MHz 2nd LO FPGA FRAC-N (from A8) Symv/Int_Swp J702 4800 MHz CONTROLLER 2nd LO CONTROLLER J200 J703...
  • Page 376 Block Diagrams Block Diagrams Keysight N9010A EXA Service Guide...

  • Page 377: Exa Computer Block Diagram

    Block Diagrams Block Diagrams EXA Computer Block Diagram Keysight N9010A EXA Service Guide...
  • Page 378 Block Diagrams Block Diagrams Keysight N9010A EXA Service Guide...

  • Page 379: 13 Service And Diagnostics Menus

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 13 Service and Diagnostics Menus Overview The Service capabilities described below are accessed via the Service and Diagnostic menus in the System menu. The Service capabilities are intended for field service technicians. These technicians may be at an Keysight Service Center or at a self-maintaining customer site.

  • Page 380: Secure Service Access, Software Versions A.01.Xx Through A.03.Xx

    Service and Diagnostics Menus Overview Secure Service Access, Software Versions A.01.xx through A.03.xx Secure service access is the Windows® login of “advanceduser”. The “advanceduser” must be a member of the Power Users group. This account has not been pre-configured on the instrument. The administrator must create the login and make “advanceduser”...

  • Page 381: Menus

    Service and Diagnostics Menus Menus Menus The menus shown on the following pages represent instrument software versions ≥ A10.00. The menus for earlier software versions are similar, but lack some of the features shown below. Keysight N9010A EXA Service Guide...
  • Page 382 Service and Diagnostics Menus Menus Keysight N9010A EXA Service Guide...
  • Page 383 Service and Diagnostics Menus Menus Keysight N9010A EXA Service Guide...
  • Page 384 Service and Diagnostics Menus Menus Keysight N9010A EXA Service Guide...

  • Page 385: Service Key Descriptions

    Service and Diagnostics Menus Service Key Descriptions Service Key Descriptions Timebase Allows the technician to adjust the 10 MHz reference (“timebase”) manually. If the Timebase DAC value has been changed, but no Save operation performed before exiting this menu, a warning is provided to the user that they have not saved their setting: Timebase DAC Allows the technician the ability to adjust the 10 MHz reference (“timebase”).

  • Page 386: Corrections

    Service and Diagnostics Menus Service Key Descriptions Corrections The Corrections menu allows the technician to activate and deactivate specific amplitude correction sets. With this capability, the technician can determine if an anomaly is a result of raw hardware performance or incorrect correction data.
  • Page 387 Service and Diagnostics Menus Service Key Descriptions IF Flatness This function turns the corrections related to IF flatness On or Off. When IF Flatness is OFF, the Advisory Event “IF Flatness corrections OFF” will be displayed. When IF Flatness is ON, the Advisory Event “IF Flatness corrections OFF” will be cleared.

  • Page 388: Band Lock

    Service and Diagnostics Menus Service Key Descriptions Band Lock Provides the ability to tune the analyzer over as large a range as can be accommodated by the specified harmonic number and 1st LO frequency range. As a result, this feature can be used to check performance in the frequency band overlap regions.

  • Page 389: Lo Band Lock

    Service and Diagnostics Menus Service Key Descriptions LO Band Lock Provides the ability to tune the analyzer over as large a range as can be accommodated by the specified LO Band. As a result, this feature can be used to check performance in the LO band overlap regions. By definition, multi-band sweeps are not allowed.

  • Page 390: Align

    Service and Diagnostics Menus Service Key Descriptions External LO Turnoff Disconnects the 1st LO path which will minimize the effect of the 1st LO signal at the front panel EXT MIXER connector. Align The Align Menu allows accessing Diagnostic capabilities of Alignment, and invoking alignments for individual subsystems.
  • Page 391 Service and Diagnostics Menus Service Key Descriptions Subsystem The Subsystem menu allows invoking individual components of the internal alignments. Immediately executes an alignment of the ADC subsystem. The instrument will stop any measurement currently underway, perform the alignment, then restart the measurement from the beginning. A failure of ADC will set the Error Condition “Align ADC failed”.
  • Page 392 Service and Diagnostics Menus Service Key Descriptions Immediately executes an alignment of the LO subsystem. The instrument will stop any measurement currently underway, perform the alignment, then restart the measurement from the beginning. A failure of LO will set the Error Condition “Align LO failed”. A failure will not employ new LO alignment data.
  • Page 393 Service and Diagnostics Menus Service Key Descriptions This is exactly the same as the customer accessible Align Now, RF with one exception: the alignment can be invoked even if a previous Align Now, All has not been executed (this key is not grayed-out if using default alignment data).
  • Page 394 Service and Diagnostics Menus Service Key Descriptions Figure 13-2 Example Screen The software name is left justified, with the revision information right justified. This is a multi-page list with Next Page and Previous Page menu key control in accordance with other text screens (Show Systems, Show Errors, etc.).

  • Page 395: 14 Replaceable Parts

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 14 Replaceable Parts What You Will Find in This Chapter 1. Part number tables for assemblies, mechanical parts, cables, front panel connectors, and labels. 2. Part location diagrams for the following: Figure 14-1, “Major Assemblies,”...
  • Page 396 Replaceable Parts What You Will Find in This Chapter Figure 14-22, “Reference Board Cables - Options B40, MPB, DP2 Serial Number < MY/SG/US56480000,” Figure 14-25, “AIF/DIF Cables - Standard Instruments,” Figure 14-26, “AIF/DIF Cables, bottom - Standard Instruments,” Figure 14-27, “AIF/DIF Cables - Options MPB, B40, or DP2,” Figure 14-28, “AIF/DIF Cables, bottom - Options MPB, B40, or DP2,”...

  • Page 397: How To Order Parts

    — Description of where the part is located, what it looks like, and its function (if known) — Quantity required For a list of Keysight Technologies sales and service office locations, refer to “Contacting Keysight Technologies” on page Keysight N9010A EXA Service Guide...

  • Page 398: Replaceable Parts

    Replaceable Parts Replaceable Parts Replaceable Parts Some of the assemblies listed in the following table are related to options that are available with the EXA Signal Analyzer. These options are described below. Table 14-1 All Replaceable Parts Reference Description Part Number Designator A1A1 N9020-60110...
  • Page 399 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator A1A3 Liquid Crystal Display Serial number ≥ MY/SG51250000 2090-0997 Serial number < MY/SG51250000 2090-1040 A1A4 DC-DC Converter (LED display backlight power) 0950-5235 Serial number > MY51250000, SG51250000 Inverter Board (display backlight power) 0950-4635 Serial number <...
  • Page 400 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator A1W3 Power Cable, Front Panel Interface board to DC-DC Converter W1312-60130 A1W4 Power Cable, DC-DC Converter to Display W1312-60131 Analog I.F. Assembly Standard Instruments, Option 503, 507, 513, 526 with Serial number E4410-60104 <...
  • Page 401 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator Disk Drive Replacement Kit N9020-60125 Refer also to Serial number ≥ MY/SG/US50060000 (Solid State, SATA or Option SSD with Win XP OS Service Note N9010A-03 Serial number ≥ MY/SG/US54200000 N9020 -60343 Option PC4 with WES7 OS, or Option PC6 Serial number <...
  • Page 402 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator RF Front End Assembly Options 503, 507, 513, 526 with Serial number < MY/SG/US56480000 N9020-60189 Options 503, 507, 513, 526 with Serial number ≥ MY/SG/US56480000 N9020-60314 Options 532, 544 with Serial number <...
  • Page 403 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator Reference Assembly Serial number ≥ MY/SG/US56480000 N9020-60200 Serial number < MY/SG/US56480000 E4410-60108 Fixed Attenuator, 6 dB 08493-60026 (Option 507, 513, 526 with Options B40, MPB, or DP2) (connects to SW2) B1-B2 3160-4199...
  • Page 404 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator Fan Bracket Serial number < MY/SG/US52180000 (Option 503, 507, 513, 526) W1312-00133 Serial number > MY/SG/US52180000 (Option 503, 507, 513, 526) W1312-00137 Serial number > MY/SG/US51440000 (Option 532, 544) W1312-00137 Top Brace (includes foam strips) N9020-60018...
  • Page 405 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator MP36-37 Attenuator Bracket Option 503, 507, 513, 526 N9020-00052 Option 532, 544 N9020-00019 MP38 Low Band Switch Assembly Bracket Serial number < MY/SG/US50510001, Option 503, 507, 513, 526 E4410-00109 Serial number ≥...
  • Page 406 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator MP80 Bracket, Preselector Bypass Switch 2 E4410-00110 (on top of top switch) MP81 Shield, Magnetic, Attenuator A (Option 532, 544) N9020-00043 MP82 Shield, Magnetic, Attenuator B (Option 532, 544) N9020-00044 MP83 Gusset, Chassis (near RF Input connector)
  • Page 407 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator Cable Assembly, A12 Output to A13J9 (Semi Rigid) Option 503, 507, 513, 526 N9020-20124 Option 532, 544 N9010-20006 Cable Assembly, A11J3 to A12 Input (Semi Rigid) Serial number <...
  • Page 408 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator Option 532, 544 with Serial number < MY/SG/US56480000 N9010-20003 Option 503, 507, 513, 526 with Serial number ≥ MY/SG/US56480000 E4410-60160 Option 532, 544 with Serial number ≥ MY/SG/US56480000 N9020-60092 Cable Assembly, A13J6 to A16J705 (Flexible Coax) 8121-1400...
  • Page 409 Replaceable Parts Replaceable Parts Table 14-1 All Replaceable Parts Reference Description Part Number Designator Cable Assembly, SW4 Port 2 to A13J9 (Semi Rigid) N9020-20130 Option 532, 544 with Option MPB Cable Assembly, SW4 Port 3 to A12 Output (Semi Rigid) N9020-20129 Option 532, 544 with Option MPB Cable Assembly, SW4 Port 4 to A12 Input (Semi Rigid)
  • Page 410 Table 14-2 Attaching Hardware Attach Part Number Type Tool Torque Analog IF Digital IF 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (8 mm long) Analog IF (Top Shield) Analog IF (Bottom Shield) 0515-0664 M3 X 0.5 Torx T-10 9 inch-lbs (12 mm long) Attenuators Attenuator Bracket...
  • Page 411 Table 14-2 Attaching Hardware Attach Part Number Type Tool Torque CPU Shield CPU & Hard Disk Drive 0515-1227 M3 X 0.5 Torx T-10 9 inch-lbs (6 mm long) CPU Shield CPU Assembly 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (Option PC2) (8 mm long) 0515-1227...
  • Page 412 Table 14-2 Attaching Hardware Attach Part Number Type Tool Torque Disk Drive Rear Panel Disk Drive Tray 0515-2219 M2.5 X 0.45 Torx T-8 9 inch-lbs (Option PC2, PC3, PC4, PC5) (5 mm long) External Reference BNC Rear Panel 2190-0102 Lock Washer External Reference BNC Rear Panel 0590-2332...
  • Page 413 Table 14-2 Attaching Hardware Attach Part Number Type Tool Torque Low Band Switch Assy. Chassis 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (8 mm long) Low Band Switch Assy. Low Band Switch Bracket 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (8 mm long) Low Band Switch Bracket.
  • Page 414 Table 14-2 Attaching Hardware Attach Part Number Type Tool Torque RF Front End Assembly Chassis 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (8 mm long) RF Input Connector Chassis 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (8 mm long) Strap Handle Plugs Instrument Cover 0515-5209...

  • Page 415: Hardware

    Replaceable Parts Hardware Hardware Figure 14-1 Major Assemblies Item Description Keysight Part Number A2 Analog I.F. Assembly Refer to Table 14-1 A3 Digital I.F. Assembly CPU Replacement Kit (w/o disk drive) Refer to Table 14-1 A6 Power Supply 0950-5012 A16 Reference Assembly Refer to Table 14-1 A14 L.O.
  • Page 416 Replaceable Parts Hardware Figure 14-2 External Hardware (Benchtop Configuration) Item Description Keysight Part Number 1, 2 MP21-22 Strap Handles (Benchtop Configuration) (includes screws) N9020-60002 Screw M4 X 0.7 (25 mm long) 0515-1619 MP17-20 Rear Feet (Benchtop Configuration) 5041-9611 MP16 Dress Cover (includes magnetic gasket) Refer to Table 14-1 Keysight N9010A EXA Service Guide...
  • Page 417 Replaceable Parts Hardware Figure 14-3 External Hardware and Bail Handle (Option PRC) Item Description Keysight Part Number Screw M4 X 0.7 (14 mm long) 0515-0435 MP49 Bail Handle (Option PRC, Portable) W1312-60036 Screw M4 X 0.7 (14 mm long) 0515-0435 MP41-44 Front Bumpers (Option PRC, Portable) W1312-40020 MP61-64 Strap Handle Plugs (Option PRC, Portable)
  • Page 418 Replaceable Parts Hardware Figure 14-4 External Hardware (Option PRC) Item Description Keysight Part Number Screw M4 X 0.7 (25 mm long) 0515-1619 MP45-48 Rear Bumpers (Option PRC, Portable) W1312-40021 (includes screws) Keysight N9010A EXA Service Guide...
  • Page 419 Replaceable Parts Hardware Figure 14-5 CPU Assembly (PC1) Item Description Keysight Part Number A4BT1 CPU Board Battery (CR2032) 1420-0356 Disk Drive Ribbon Cable 8121-1611 Hard Disk Drive N9020-60066 Keysight N9010A EXA Service Guide...
  • Page 420 Replaceable Parts Hardware Figure 14-6 CPU Assembly (Option PC2, PC3, PC4, and PC5) Item Description Keysight Part Number A4 CPU Replacement Kit Refer to Table 14-1 Refer also to Service Note N9010A-01A A4BT1 CPU Board Battery (CR2032) 1420-0356 A4A1 Disk Drive Interconnect Board W1312-63079 Screw M3 x 0.5 (8 mm long) 0515-0372...
  • Page 421 Replaceable Parts Hardware Figure 14-7 Disk Drive Tray Assembly (Option PC2, PC3, PC4, and PC5) Item Description Keysight Part Number A5 Disk Drive Replacement Kit Refer to Table 14-1 A5MP1 Disk Drive Tray W1312-40078 A5MP2 Disk Drive Rear Panel W1312-00103 A5MP3 Disk Drive Assembly Handle 1440-0421...
  • Page 422 Replaceable Parts Hardware Figure 14-8 Top Brace and Reference Bracket Item Description Keysight Part Number MP7 Top Brace (includes foam strips) N9020-60018 MP65 Top Bracket, Reference Assembly N9000-00104 Screw M3 X 0.5 (8 mm long) 0515-0372 Screw M3 X 0.5 (6 mm long) 0515-1946 Screw M3 X 0.5 (8 mm long)
  • Page 423 Replaceable Parts Hardware Figure 14-9 RF Area - Standard Instrument Item Description Keysight Part Number A9 RF Attenuator A (0 to 4 dB) 33360-60008 A10 RF Attenuator B (0 to 66 dB) 33321-60083 A11 Low Band Switch Assembly E4410-60121 A12 YTF Preselector (except Option 503) 5087-7382 Cable Assembly, A11J2 to A13J2 (Semi Rigid) Serial number <...
  • Page 424 Replaceable Parts Hardware Item Description Keysight Part Number Cable Assembly, A10 Output to A11J1 (Semi Rigid) Serial number < MY/SG50510001, Option 503, 507, 513, 526 E4410-20159 Serial number ≥ MY/SG50510001, Option 503, 507, 513, 526 N9020-20153 Cable Assembly, J1 to A9 Input (Semi Rigid) Serial number <...
  • Page 425 Replaceable Parts Hardware Figure 14-10 RF Area - Option 532, 544 Item Description Keysight Part Number A9 RF Attenuator A 0 to 10 dB (Options 532, 544) 33326-60013 A10 RF Attenuator B 0 to 60 dB (Options 532, 544) 33325-60020 A11 Low Band Switch Assembly N9020-60051 YTF Preselector...
  • Page 426 Replaceable Parts Hardware Figure 14-11 RF Area - Options B40, MPB, or DP2 Item Description Keysight Part Number A9 RF Attenuator A (0 to 4 dB) 33360-60008 A10 RF Attenuator B (0 to 66 dB) 33321-60083 A11 Low Band Switch Assembly E4410-60121 A12 YTF Preselector (except Option 503) 5087-7382...
  • Page 427 Replaceable Parts Hardware Item Description Keysight Part Number Cable Assembly, J1 to A9 Input (Semi Rigid) Serial number < MY/SG50510001, Option 503, 507, 513, 526 E4410-20156 Serial number ≥ MY/SG50510001, Option 503, 507, 513, 526 N9020-20141 Cable Assembly, A9 Output to A10 Input (Semi Rigid) N9020-20142 Cable Assembly, A11J4 to A15J103 or A15J700 (Ribbon Cable) E4410-60160...
  • Page 428 Replaceable Parts Hardware Figure 14-12 RF Area - Option 532, 544 with Option B40, MPB, or DP2 Item Description Keysight Part Number A9 RF Attenuator A 0 to 10 dB (Options 532, 544) 33326-60013 A10 RF Attenuator B 0 to 60 dB (Options 532, 544) 33325-60020 A11 Low Band Switch Assembly N9020-60051...
  • Page 429 Replaceable Parts Hardware Figure 14-13 RF Area - Options B40, MPB, or DP2 (switch detail) Item Description Keysight Part Number Coaxial Switch (Options B40, MPB, or DP2) N1810-60069 Coaxial Switch (Options B40, MPB, or DP2) N1810-60069 Fixed Attenuator, 6 dB 08493-60026 Cable Assembly, J1 to A9 Input (Semi Rigid) Serial number <...
  • Page 430 Replaceable Parts Hardware Figure 14-14 RF Area - Option 532, 544 with Option B40, MPB, or DP2 (switch detail) Item Description Keysight Part Number Transfer Switch, 50 GHz (Options B40, MPB, or DP2) 87222-60031 Cable Assembly, J1 to A9 Input (Semi Rigid) N9020-20133 Cable Assembly, SW2 Center Port to A11J3 (Semi-rigid) E4410-20161...
  • Page 431 Replaceable Parts Hardware Figure 14-15 Front End Parts - Standard Instruments Item Description Keysight Part Number A13 RF Front End Assembly Refer to Table 14-1 A13A1 Bandpass Filter Refer to Table 14-1 A13W1 Cable Assembly, A13J10 to A13A1 Input (Semi Rigid) Refer to Table 14-1 A13W2...
  • Page 432 Replaceable Parts Hardware Item Description Keysight Part Number Cable Assembly, A16J702 to A13J1 (Semi Rigid) Serial number < MY/SG/US56480000 N9020-20155 Serial number ≥ MY/SG/US56480000 N9020-20064 Cable Assembly, A12 Output to A13J9 (Semi Rigid) N9020-20124 Cable Assembly, A11J3 to A12 Input (Semi Rigid) Serial number <...
  • Page 433 Replaceable Parts Hardware Figure 14-16 Front End Parts - Option 532, 544 Item Description Keysight Part Number A13 RF Front End Assembly Refer to Table 14-1 A13A1 Bandpass Filter Refer to Table 14-1 A13W1 Cable Assembly, A13J10 to A13A1 Input (Semi Rigid) Refer to Table 14-1 A13W2...
  • Page 434 Replaceable Parts Hardware Item Description Keysight Part Number Cable Assembly, A16J702 to A13J1 (Semi Rigid) Serial number < MY/SG/US56480000 N9020-20155 Serial number ≥ MY/SG/US56480000 N9020-20064 Cable Assembly, A12 Output to A13J9 (Semi Rigid) N9010-20006 Cable Assembly, A11J3 to A12 Input (Semi Rigid) N9010-20005 Cable Assembly, J1 to A9 Input (Semi Rigid) N9020-20133...
  • Page 435 Replaceable Parts Hardware Figure 14-17 Front End Parts - Options MPB, B40, DP2, CR3, or CRP Item Description Keysight Part Number A13 RF Front End Assembly Refer to Table 14-1 A13A1 Bandpass Filter Refer to Table 14-1 A13W1 Cable Assembly, A13J10 to A13A1 Input (Semi Rigid) Refer to Table 14-1 A13W2...
  • Page 436 Replaceable Parts Hardware Item Description Keysight Part Number Cable Assembly, A16J702 to A13J1 (Semi Rigid) Serial number < MY/SG/US56480000 N9020-20155 Serial number ≥ MY/SG/US56480000 N9020-20064 Cable Assembly, J1 to A9 Input (Semi Rigid) Serial number < MY/SG50510001, Option 503, 507, 513, 526 E4410-20156 Serial number ≥...
  • Page 437 Replaceable Parts Hardware Figure 14-18 Front End Control Cables - early serial numbers Figure 14-19 Front End Control Cables - later serial numbers Keysight N9010A EXA Service Guide...
  • Page 438 Replaceable Parts Hardware Item Description Keysight Part Number Front End Control Assembly Refer to Table 14-1 A14 L.O. Synthesizer Assembly Refer to Table 14-1 Cable Assembly, A14J740 to A13J4 (Semi Rigid) N9020-20156 Cable Assembly, A16J703 to A14J200 (Semi Rigid) Serial number < MY/SG/US56480000 N9020-20154 Serial number ≥...
  • Page 439 Replaceable Parts Hardware The Front End Control Assembly used in Options MPB, B40, DP2, CR3, and CRP has these additional cables: Figure 14-20 Front End Control Cables - Options B40, MPB, DP2, CR3, or CRP Item Description Keysight Part Number Cable Assembly, A15J902 to A13J7 (Flexible Coax) 8121-1862 Cable Assembly, A15J900 to A2J100 (Flexible Coax)
  • Page 440 Replaceable Parts Hardware Figure 14-21 Reference Board Cables - Instruments without Option B40, MPB, or DP2 Serial Number < MY/SG/US56480000 Item Description Keysight Part Number A16 Reference Assembly E4410-60108 Cable Assembly, A16J702 to A13J1 (Semi Rigid) N9020-20155 Cable Assembly, A16J703 to A14J200 (Semi Rigid) N9020-20154 Cable Assembly, A16J710 to A3J14 (Flexible Coax) 8121-1401...
  • Page 441 Replaceable Parts Hardware Figure 14-22 Reference Board Cables - Options B40, MPB, DP2 Serial Number < MY/SG/US56480000 Item Description Keysight Part Number A16 Reference Assembly E4410-60108 Cable Assembly, A16J702 to A13J1 (Semi Rigid) N9020-20155 Cable Assembly, A16J703 to A14J200 (Semi Rigid) N9020-20154 Cable Assembly, A16J711 to A2J300 (Flexible Coax) 8121-1401...
  • Page 442 Replaceable Parts Hardware Figure 14-23 Reference Board Cables - without Options B40, MPB, DP2 Serial Number ≥ MY/SG/US56480000 Item Description Keysight Part Number A16 Reference Assembly N9020-60200 Cable Assembly, A16J702 to A13J1 (Semi Rigid) N9020-20155 Cable Assembly, A16J703 to A14J200 (Semi Rigid) N9020-20154 Cable Assembly, A16J710 to A3J14 (Flexible Coax) 8121-1401...
  • Page 443 Replaceable Parts Hardware Figure 14-24 Reference Board Cables - Options B40, MPB, DP2 Serial Number ≥ MY/SG/US56480000 Item Description Keysight Part Number A16 Reference Assembly N9020-60200 Cable Assembly, A16J702 to A13J1 (Semi Rigid) N9020-20155 Cable Assembly, A16J703 to A14J200 (Semi Rigid) N9020-20154 Cable Assembly, A16J711 to A2J300 (Flexible Coax) 8121-1401...
  • Page 444 Replaceable Parts Hardware Figure 14-25 AIF/DIF Cables - Standard Instruments Figure 14-26 AIF/DIF Cables, bottom - Standard Instruments Keysight N9010A EXA Service Guide...
  • Page 445 Replaceable Parts Hardware Item Description Keysight Part Number A3W1 Cable Assembly, Smart Noise Source (Wire Harness) E4410-60163 Cable Assembly, A16J710 to A3J14 (Flexible Coax) 8121-1401 Cable Assembly, A2J601 to A3J15 (Flexible Coax) 8121-1411 Cable Assembly, A16J711 to A2J300 (Flexible Coax) 8121-1401 Cable Assembly, A13J7 to A2J100 (Flexible Coax) 8121-1400...
  • Page 446 Replaceable Parts Hardware Figure 14-27 AIF/DIF Cables - Options MPB, B40, or DP2 Figure 14-28 AIF/DIF Cables, bottom - Options MPB, B40, or DP2 Keysight N9010A EXA Service Guide...
  • Page 447 Replaceable Parts Hardware Item Description Keysight Part Number Cable Assembly, A2J601 to A3J15 (Flexible Coax) 8121-1411 Cable Assembly, A16J711 to A2J300 (Flexible Coax) 8121-1401 Cable Assembly, A15J900 to A2J100 (Flexible Coax) 8121-1401 Cable Assembly, A15J901 to A3J15 (Flexible Coax) 8121-1861 Cable Assembly,A13J6 to A3J17 (Flexible Coax) 8121-1940 Cable Assembly, A2J601 to A3J19 (Flexible Coax)
  • Page 448 Replaceable Parts Hardware Figure 14-29 AIF/DIF Assemblies - Standard Instruments Item Description Keysight Part Number A2 Analog I.F. Assembly Refer to Table 14-1 A3 Digital I.F. Assembly N9020-60119 Screw, M3 X 0.5 (8 mm long) 0515-0372 Cable, Interconnect from A2J820 to A3J20 E4410-60162 A3W1 Cable Assembly, Smart Noise Source (Wire Harness)
  • Page 449 Replaceable Parts Hardware Figure 14-30 AIF/DIF Assemblies - Option DP2, MPB, B40, 532, 544 Item Description Keysight Part Number A2 Analog I.F. Assembly N9020-60011 A3 Digital I.F. Assembly Refer to Table 14-1 Screw, M3 X 0.5 (8 mm long) 0515-0372 Cable, Interconnect from A2J820 to A3J20 N9020-60046 A3W1...
  • Page 450 Replaceable Parts Hardware Figure 14-31 Chassis Item Description Keysight Part Number Chassis Base Refer to Table 14-1 Chassis Side, Right (inner) Refer to Table 14-1 Chassis Side, Left (inner) Refer to Table 14-1 Midplane Bracket W1312-00048 Chassis Front Bracket Refer to Table 14-1 Fan Bracket Refer to...
  • Page 451 Replaceable Parts Hardware Figure 14-32 Motherboard Item Description Keysight Part Number A8 Motherboard Assembly N9000-66404 Screw M3 X0.5 (8 mm long) 0515-0372 Keysight N9010A EXA Service Guide...
  • Page 452 Replaceable Parts Hardware Figure 14-33 Fan Hardware Item Description Keysight Part Number 3160-4199 3160-4199 MP25-26 Fan Guard 3160-0281 MP27-34 Rivet, Fan Mounting (8 pieces) 0361-1272 Keysight N9010A EXA Service Guide...
  • Page 453 Replaceable Parts Hardware Figure 14-34 Input Connector Item Description Keysight Part Number Screw M3 X 0.5 (8 mm long) 0515-0372 J1 Type-N (f) RF Input Connector Assembly (Option 503, 507, 5002-0702 513, 526) J1 2.4 m Input Connector Assembly (Option 532, 544) N9030-60011 MP78 Input Connector O-Ring 8160-1637...
  • Page 454 Replaceable Parts Hardware Figure 14-35 Front Frame Parts - LCD Item Description Keysight Part Number A1A2 Front Panel Interface Board Serial number ≥ MY/SG48010101, US48010001 to Serial W1312-60042 number < MY/SG51250000 Serial number < MY/SG48010101 N9020-60033 A1A2MP1 Speaker 9164-0453 A1A2MP2 Speaker Foam W1312-40016 A1A3 Liquid Crystal Display 2090-1040...
  • Page 455 Replaceable Parts Hardware Item Description Keysight Part Number W1 Cable, Front Panel Interface Board to Motherboard (Ribbon) Serial number ≥ MY/SG48010101, US48010001 N9020-60036 Serial number < MY/SG48010101, US48010001 E4410-60171 28, 28, 30 Screw M3 X 0.5 (8 mm long) 0515-0372 Screw M3 X 0.5 (5 mm long) 0515-1521...
  • Page 456 Replaceable Parts Hardware Figure 14-36 Front Frame Parts - LED Item Description Keysight Part Number A1MP14 Display Bracket W1312-00145 A1A5 Front Panel Daughter Board N9020-63193 A1MP24 Magnetic Shield (Display Bracket to Front N9020-00029 Panel Interface/Speaker Bracket) A1MP23 Front Panel Interface/Speaker Bracket N9020-00028 Screw Front Panel Daughter Board...
  • Page 457 Replaceable Parts Hardware Figure 14-37 Front Frame Parts (shields off) - LED Item Description Keysight Part Number A1A2 Front Panel Interface Board Refer to Table 14-1 A1A2MP1 Speaker 9164-0453 Speaker Foam W1312-40016 A1W1 Flex Circuit, Display to Front Panel Interface Board Serial number ≥...
  • Page 458 Replaceable Parts Hardware Figure 14-38 Front Frame Exploded View - LCD Keysight N9010A EXA Service Guide...
  • Page 459 Replaceable Parts Hardware Item Description Keysight Part Number A1A1MP1 Front Frame W1312-20108 A1A1MP2 Main Keypad Overlay N9030-80002 A1A1MP3 Connector Overlay E4410-80109 A1A1MP7 Front Frame Top Trim Strip (Use with W1312-40004 Option PRC, Portable) (Illustrated) A1A1MP8 Front Frame Top Trim Strip (Use with W1312-40019 standard Bench analyzer) (Not Illustrated)
  • Page 460 Replaceable Parts Hardware Item Description Keysight Part Number A1MP10-13 Cable Clamp (Front Panel Cables) 1400-1439 A1W1 Flex Circuit, Display to Front Panel Interface Board Serial number ≥ MY/SG51250000 W1312-60122 Serial number < MY/SG51250000 W1312-60010 A1W2 Power Cable, Front Panel Interface Board to W1312-60011 Inverter Board W1 Cable, Front Panel Interface Board to...
  • Page 461 Replaceable Parts Hardware Figure 14-39 Front Frame Exploded View - LED Keysight N9010A EXA Service Guide...
  • Page 462 Replaceable Parts Hardware Item Description Keysight Part Number Front Frame A1A1MP2 Main Keypad Overlay Option 503, 507, 513, 526 N9030-80002 Option 532, 544 N9030-80011 A1A1MP3 Connector Overlay E4410-80109 A1A1MP18 Cover Plate N9020-00002 A1A1MP9-10 Front Frame Side Trim Strip W1312-40005 A1A1MP4 Front Frame Ground Spring W1312-00021 A1A2 Front Panel Interface Board N9020-60277...

  • Page 463: 15 Assembly Replacement Procedures

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 15 Assembly Replacement Procedures What You Will Find in This Chapter Procedures in this chapter enable you to locate, remove, and replace the following major assemblies in your instrument.

  • Page 464: Before Starting

    Assembly Replacement Procedures What You Will Find in This Chapter Before Starting Before starting to disassemble the instrument: Check that you are familiar with the safety symbols marked on the instrument. And, read the general safety considerations and the safety note definitions given in the front of this guide.

  • Page 465: Tools You Will Need

    Assembly Replacement Procedures Tools you will need Tools you will need Figure 15-1 TORX Tool Description Keysight Part Number TORX Hand Driver - Size T-10 8710-1623 TORX Hand Driver - Size T-20 8710-1615 9/16 inch nut driver 8720-0008 5/16 inch open-end wrench source locally cable puller 5021-6773...

  • Page 466: Major Assembly Locations

    Assembly Replacement Procedures Major Assembly Locations Major Assembly Locations Figure 15-2 Major Assemblies Item Description A2 Analog I.F. Assembly/A3 Digital I.F. Assembly A4 CPU Assembly A6 Power Supply A16 Reference Assembly A14 L.O. Synthesizer Assembly A15 Front End Control Assembly A7 Midplane Assembly Keysight N9010A EXA Service Guide...

  • Page 467: Instrument Outer Case

    Assembly Replacement Procedures Instrument Outer Case Instrument Outer Case If the instrument is placed on its face during any of the following procedures, be sure to use the front panel protective cover (MP50), a soft surface, or soft cloth to avoid damage to the front panel, keys, or input connector.
  • Page 468 Assembly Replacement Procedures Instrument Outer Case Figure 15-3 Standard Instrument Outer Case Removal Replacement 1. Disconnect the instrument from ac power. 2. Slide the instrument cover back onto the deck from the rear. The seam on the cover should be on the bottom. Be sure the cover seats into the gasket groove in the Front Frame Assembly.

  • Page 469: Option Prc

    Assembly Replacement Procedures Instrument Outer Case Option PRC Removal 1. Disconnect the instrument from ac power. Refer to Figure 15-4. Using the T-20 driver, remove the four screws (two on each side) (1) that hold the bail handle (2) to the front frame. Figure 15-4 Bail Handle Removal 2.
  • Page 470 Assembly Replacement Procedures Instrument Outer Case 3. Refer to Figure 15-5. Using the T-20 driver, remove the four screws including washers (1) that hold the rear bumpers (2) (two on each side) in place. Figure 15-5 Option PRC Instrument Outer Case Removal 4.
  • Page 471 Assembly Replacement Procedures Instrument Outer Case Replacement 1. Disconnect the instrument from ac power. 2. Slide the instrument cover back onto the deck from the rear. The seam on the cover should be on the bottom. Be sure the cover seats into the gasket groove in the Front Frame Assembly.

  • Page 472: Top Brace And Reference Bracket

    Assembly Replacement Procedures Top Brace and Reference Bracket Top Brace and Reference Bracket Removal 1. Remove the instrument outer case. Refer to the “Instrument Outer Case” removal procedure. 2. Refer to Figure 15-6. On analyzers with serial prefix < MY/SG/US5648, both the Top Brace (1) and the Reference Bracket (2) will be present.

  • Page 473: Replacement

    Assembly Replacement Procedures Top Brace and Reference Bracket Figure 15-6 Top Brace and Reference Bracket Removal Replacement 1. Refer to Figure 15-6. To replace the Top Brace or the Reference Bracket, place them into the correct position and attach the appropriate screws. Torque to 9 inch-pounds.

  • Page 474: Rf Area (Option 503, 507, 513, 526)

    Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) RF Area (Option 503, 507, 513, 526) Refer to Figure 15-7 Figure 15-8. The RF area consists of RF attenuator A (1), RF attenuator B (2), low band switch assembly (3), and YTF Preselector (4).
  • Page 475 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Figure 15-8 RF Area Components and Cables - Options DP2, MPB, B40 Keysight N9010A EXA Service Guide...
  • Page 476 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) To gain access to any of these parts, follow these steps: 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the top brace. Refer to the Front Frame Assembly removal procedure.

  • Page 477: Low Band Switch

    Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Low Band Switch - Standard Instruments with Serial Number < MY/SG50510001 Removal 1. Refer to Figure 15-10. Remove the ribbon cable W18. 2. Remove the semi-rigid cables W3, W8, and W9 using the 5/16 inch wrench.
  • Page 478 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Figure 15-10 Low Band Switch Removal Keysight N9010A EXA Service Guide...
  • Page 479 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 4. Refer to Figure 15-11. To separate the switch from the bracket, remove the four screws (3) using the T-10 driver. Figure 15-11 Low Band Switch and Bracket Separation Keysight N9010A EXA Service Guide...
  • Page 480 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Replacement 1. Refer to Figure 15-11. Place the switch onto the bracket and replace the four screws (3). Torque to 9 inch-pounds in the sequence shown, starting with #1. 2. Place the switch/bracket into place into the chassis and replace the two screws.

  • Page 481: Low Band Switch

    Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Low Band Switch - Standard Instruments with Serial Number > MY/SG50510001 Removal 1. Refer to Figure 15-12. Remove the ribbon cable W18. 2. Remove the semi-rigid cables W3, W8, and W9 using the 5/16 inch wrench.
  • Page 482 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Figure 15-12 Low Band Switch Removal Keysight N9010A EXA Service Guide...
  • Page 483 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 4. Refer to Figure 15-13. To separate the switch from the bracket, remove the four screws (3) using the T-10 driver. Figure 15-13 Low Band Switch and Bracket Separation Keysight N9010A EXA Service Guide...
  • Page 484 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Replacement 1. Refer to Figure 15-13. Place the switch onto the bracket and replace the four screws (3). Torque to 9 inch-pounds in the sequence shown, starting with #1. 2. Place the switch/bracket into place into the chassis and replace the two screws.

  • Page 485: Low Band Switch And Coaxial Switches Options Dp2, Mpb, B40

    Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Low Band Switch and Coaxial Switches Options DP2, MPB, B40 Removal 1. Refer to Figure 15-14. Remove semi-rigid coax cables W32 and W33. Figure 15-14 Remove W33 and W32 Keysight N9010A EXA Service Guide...
  • Page 486 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 2. Refer to Figure 15-15. Remove semi-rigid coax cables W31 and W34. Figure 15-15 Remove W34 and W31 Keysight N9010A EXA Service Guide...
  • Page 487 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 3. Refer to Figure 15-16. Remove semi-rigid coax cable W35 and the fixed attenuator (1). Figure 15-16 W35 and Attenuator Removal 4. Remove ribbon cable W18 from J4 of the A11 Low Band Switch. Keysight N9010A EXA Service Guide...
  • Page 488 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 5. Refer to Figure 15-17. Disconnect the two wire harness connectors W30 from the switches (1). Even though the wire colors on W30 harness are different, it does not matter which one plugs into which switch.
  • Page 489 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 6. Refer to Figure 15-18. Using the T-10 driver, remove the single screw (4) to separate the switch 2/bracket assembly (1)/(2) from the low band switch bracket. To separate switch 2 (1) from it’s bracket (2), remove the two 0515-1992 screws (3) using the T-8 driver.
  • Page 490 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 7. Refer to Figure 15-19. Using the T-8 driver, remove the two 0515-1992 screws (3) to separate the #1 switch/bracket assembly (1)/(2) from the low band switch bracket (4). Figure 15-19 Switch 1 Removal Keysight N9010A EXA Service Guide...
  • Page 491 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 8. Refer to Figure 15-20. Remove the semi-rigid cables W3, W9, and W10. Figure 15-20 Removing Coax Cables 9. Refer to Figure 15-21. Using the T-10 driver, remove the two screws (1) to separate the low band switch/bracket from the chassis.
  • Page 492 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 10.Refer to Figure 15-22. To separate the low band switch from the bracket, use the T-10 driver to remove the four screws (3). Figure 15-22 Low Band Switch and Bracket Separation Keysight N9010A EXA Service Guide...
  • Page 493 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Replacement 1. Refer to Figure 15-22. Place the switch onto the low band switch bracket and replace the four screws (3). Torque to 9 inch-pounds in the sequence shown, starting with #1. 2.
  • Page 494 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 3. Refer to Figure 15-24. Install W9 between the output of the A10 Input Attenuator and A11J1. Torque to 10 inch-pounds. Figure 15-24 Installing New Coax Cables 4. Install W3 between J2 of the A13 Front End Assembly and J2 of the A11 Low Band Switch.
  • Page 495 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 6. Refer to Figure 15-25. Place one of the two coaxial switches (1) and the Switch 1 Bracket (2) onto the low band switch bracket. Mount the switch with the Keysight label facing up. Attach the bracket and switch to the low band switch bracket using two 0515-1992 screws (3) using the T-8 driver.
  • Page 496 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 7. Refer to Figure 15-26. Place the second switch/bracket assembly (1)/(2) on the bracket previously installed. Assure Keysight label on switch is facing up. Attach the bracket and switch using two 0515-1992 screws (3) using the T-8 driver.
  • Page 497 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 9. Refer to Figure 15-27. Connect the two wire harness connectors W30 to the switches (1). Once connected, position the connections along side the switches. Even though the wire colors on W30 harness are different, it does not matter which one plugs into which switch.
  • Page 498 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 11.Refer to Figure 15-28. Attach the coaxial fixed attenuator (1) Switch 2 port 1. Torque to 10 inch-lbs. Figure 15-28 Attenuator Installation 12.Connect W35 semi-rigid coax cable between the coaxial fixed attenuator (1) and port 1 of Switch 1 (the lower switch).
  • Page 499 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 13.Refer to Figure 15-29. Connect W34 semi-rigid coax cable between the center port of Switch 1 (the lower switch) and J9 of the A13 Front End Assembly. Torque to 10 inch-pounds. 14.Connect W31 semi-rigid coax cable between the center port of Switch 2 (the upper switch) and J3 of the A11 Low Band Switch.
  • Page 500 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 15.Refer to Figure 15-30. Connect W33 semi-rigid coax cable between port 2 of Switch 1 (the lower switch) and the output of the A12 YTF Preselector. Torque the cable at the A12 end first to 10 inch-pounds and then torque the cable at the Switch 1 end to 10 inch-pounds.

  • Page 501: Attenuators

    Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Attenuators Removal 1. Refer to Figure 15-31. To remove Attenuator A (1) or Attenuator B (2), remove the semi-rigid cables W9, W10, W11 and W19 attached to the attenuator using the 5/16 inch wrench. 2.
  • Page 502 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Replacement 1. Refer to Figure 15-31. Position the attenuator in the bracket so that the ribbon connector end is “up”. 2. Replace the two screws that attach the attenuator to the bracket. Torque to 9 inch-pounds.

  • Page 503: Ytf Preselector

    Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) YTF Preselector Removal 1. Refer to Figure 15-32. Remove cables W7 and W8 from the YTF Preselector (1). Figure 15-32 YTF Preselector Removal 2. Remove the wire harness W22. Keysight N9010A EXA Service Guide...
  • Page 504 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) 3. Refer to Figure 15-33. From the bottom of the instrument, remove the four screws (2). The YTF Preselector can now be removed from the chassis. Figure 15-33 YTF Preselector Screws Keysight N9010A EXA Service Guide...
  • Page 505 Assembly Replacement Procedures RF Area (Option 503, 507, 513, 526) Replacement 1. Inspect the chassis where the YTF Preselector mounts and remove the gap pad if present (see Figure 15-34, item (1)). The gap pad may remain attached to the faulty YTF Preselector. 2.

  • Page 506: Rf Area (Option 532, 544)

    Assembly Replacement Procedures RF Area (Option 532, 544) RF Area (Option 532, 544) Refer to Figure 15-35 Figure 15-36. The RF area consists of RF attenuator A (1), RF attenuator B (2), low band switch assembly (3), and YTF Preselector (4). Instruments with Options DP2, MPB, or B40 will also have coaxial switch (6), (Figure 15-36).
  • Page 507 Assembly Replacement Procedures RF Area (Option 532, 544) Figure 15-36 RF Area Components and Cables - Option 532, 544 with Option DP2, MPB, Keysight N9010A EXA Service Guide...
  • Page 508 Assembly Replacement Procedures RF Area (Option 532, 544) To gain access to any of these parts, follow these steps: 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the top brace. Refer to the Front Frame Assembly removal procedure.

  • Page 509: Low Band Switch

    Assembly Replacement Procedures RF Area (Option 532, 544) Low Band Switch Removal 1. Refer to Figure 15-39 Figure 15-39. Remove the ribbon cable W18. 2. Remove the semi-rigid cables W3, W8, and W9 using the 5/16 inch wrench. 3. Remove the two screws (2) using the T-10 driver. The low band switch and bracket (1) can now be removed from the chassis.
  • Page 510 Assembly Replacement Procedures RF Area (Option 532, 544) Figure 15-39 Low Band Switch Removal Keysight N9010A EXA Service Guide...
  • Page 511 Assembly Replacement Procedures RF Area (Option 532, 544) 4. Refer to Figure 15-40. To separate the switch from the bracket, remove the four screws (3) using the T-10 driver. Figure 15-40 Low Band Switch and Bracket Separation Keysight N9010A EXA Service Guide...
  • Page 512 Assembly Replacement Procedures RF Area (Option 532, 544) Replacement 1. Refer to Figure 15-40. Place the switch onto the bracket and replace the four screws (3). Torque to 9 inch-pounds in the sequence shown, starting with #1. 2. Place the switch/bracket into place into the chassis and replace the two screws.

  • Page 513: Low Band Switch And Coaxial Switch Options Dp2, Mpb, B40

    Assembly Replacement Procedures RF Area (Option 532, 544) Low Band Switch and Coaxial Switch Options DP2, MPB, B40 Removal 1. Refer to Figure 15-41. Remove semi-rigid coax cables W3, W45, W46, W47, and W48. Figure 15-41 Remove Semi-Rigid Cables Keysight N9010A EXA Service Guide...
  • Page 514 Assembly Replacement Procedures RF Area (Option 532, 544) 2. Refer to Figure 15-42. Unplug the ribbon cable from the A15 Front End Control assembly. Figure 15-42 Remove SW4 3. Remove the two screws (1) that attach the bracket to the chassis. The bracket/switch (2) can now be removed.
  • Page 515 Assembly Replacement Procedures RF Area (Option 532, 544) Replacement 1. Refer to Figure 15-43. Place the switch onto the bracket and replace the three screws (1). Torque to 6 inch-pounds. 2. Refer to Figure 15-42. Place the switch/bracket into place onto the chassis and replace the two screws.

  • Page 516: Attenuators

    Assembly Replacement Procedures RF Area (Option 532, 544) Attenuators Removal 1. Refer to Figure 15-44. To remove Attenuator A (1) or Attenuator B (2), remove the semi-rigid cables W9, W10, W11 and W19 attached to the attenuator using the 5/16 inch wrench. 2.
  • Page 517 Assembly Replacement Procedures RF Area (Option 532, 544) Replacement 1. Refer to Figure 15-44. Position the attenuator in the bracket so that the ribbon connector end is “up”. 2. Replace the two screws that attach the attenuator to the bracket. Torque to 9 inch-pounds.

  • Page 518: Ytf Preselector

    Assembly Replacement Procedures RF Area (Option 532, 544) YTF Preselector Removal 1. Refer to Figure 15-45. Remove cables W7 and W8 (or W47 and W48 if Option MPB is installed) from the YTF Preselector (1). Figure 15-45 YTF Preselector Removal 2.
  • Page 519 Assembly Replacement Procedures RF Area (Option 532, 544) 3. Refer to Figure 15-46. From the bottom of the instrument, remove the four screws (2). The YTF Preselector can now be removed from the chassis. Figure 15-46 YTF Preselector Screws Keysight N9010A EXA Service Guide...
  • Page 520 Assembly Replacement Procedures RF Area (Option 532, 544) Replacement 1. Inspect the chassis where the YTF Preselector mounts and remove the gap pad if present (see Figure 15-34, item (1)). The gap pad may remain attached to the faulty YTF Preselector. Figure 15-47 Gap Pad Installation Refer to...

  • Page 521: Rf Front End Assembly - Options 503, 507, 513, 526

    Assembly Replacement Procedures RF Front End Assembly - Options 503, 507, 513, 526 RF Front End Assembly - Options 503, 507, 513, 526 Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the instrument top brace. Refer to the Top Brace and Reference Bracket removal procedure.

  • Page 522: Replacement

    Assembly Replacement Procedures RF Front End Assembly - Options 503, 507, 513, 526 Figure 15-48 RF Front End Assembly Removal Replacement 1. Refer to Figure 15-48. Place the RF Front End Assembly into the chassis. Replace the four screws (2). Torque to 9 inch-pounds in the sequence shown, starting with #1.

  • Page 523: Rf Front End Assembly - Options 532, 544

    Assembly Replacement Procedures RF Front End Assembly - Options 532, 544 RF Front End Assembly - Options 532, 544 Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the instrument top brace. Refer to the Top Brace and Reference Bracket removal procedure.

  • Page 524: Replacement

    Assembly Replacement Procedures RF Front End Assembly - Options 532, 544 Replacement 1. Refer to Figure 15-49. Place the RF Front End Assembly into the chassis. Replace the four screws (2). Torque to 9 inch-pounds. 2. Reattach ribbon cable W17 to the RF Front End Assembly. 3.

  • Page 525: Front End Control Assembly

    Assembly Replacement Procedures Front End Control Assembly Front End Control Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the instrument top brace. Refer to the Top Brace and Reference Bracket removal procedure.
  • Page 526 Assembly Replacement Procedures Front End Control Assembly Figure 15-50 Front End Control Assembly Removal Figure 15-51 Enhanced Front End Control Assembly Cables Keysight N9010A EXA Service Guide...

  • Page 527: Replacement

    Assembly Replacement Procedures Front End Control Assembly Replacement 1. Refer to Figure 15-50. Install the Front End Control assembly into slot 6 in the chassis securing with the ejector. 2. Reattach the ribbon cables W16, W17, and W18 and the wire harness W22 to the Front End Control assembly (1).

  • Page 528: L.o. Synthesizer Assembly

    Assembly Replacement Procedures L.O. Synthesizer Assembly L.O. Synthesizer Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the instrument top brace. Refer to the Top Brace and Reference Bracket removal procedure. 3.

  • Page 529: Replacement

    Assembly Replacement Procedures L.O. Synthesizer Assembly Replacement 1. Refer to Figure 15-52. Install the L.O. Synthesizer assembly into slot 5 in the chassis and press down to plug it into the motherboard. 2. Reattach the cables W4 and W6 to the L.O. Synthesizer assembly (1). Torque to 10 inch-pounds.

  • Page 530: Rear Panel

    Assembly Replacement Procedures Rear Panel Rear Panel Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Refer to Figure 15-53. Using the T-10 driver, remove the twenty screws (2) attaching the rear panel (1) to the chassis and to the reference bracket.

  • Page 531: Reference Assembly

    Assembly Replacement Procedures Reference Assembly Reference Assembly Removal (Serial Prefix < MY/SG/US5648) 1. Remove the instrument outer case. Refer to the “Instrument Outer Case” removal procedure. 2. Remove the reference bracket. Refer to the “Top Brace and Reference Bracket” removal procedure. 3.
  • Page 532 Assembly Replacement Procedures Reference Assembly 5. For instruments with Option B40, MPB, or DP2, refer to Figure 15-55. Remove cables W5, W6, W14, W19, W23, W42, and W43 from the reference assembly (1). Use the 5/16 inch wrench where necessary. Figure 15-55 Reference Board Cables - Serial Prefix <...

  • Page 533: Removal

    Assembly Replacement Procedures Reference Assembly Removal (Serial Prefix ≥ MY/SG/US5648) 1. Remove the instrument outer case. Refer to the “Instrument Outer Case” removal procedure. 2. Remove the four flathead screws securing the top brace to the Reference Assembly. 3. Remove the rear panel. Refer to the “Rear Panel”...
  • Page 534 Assembly Replacement Procedures Reference Assembly 5. For instruments with Option B40, MPB, or DP2 but without Option B85, B1A, or B1X, refer to Figure 15-57. Remove cables W5, W6, W14, W19, W20, W42, and W50 from the reference assembly (1). Use the 5/16 inch wrench where necessary.

  • Page 535: Replacement

    Assembly Replacement Procedures Reference Assembly 7. The reference assembly can be removed from the chassis by leveraging up on the ejector and pulling the board out on the other side. Replacement 1. Slide the reference assembly into the slot at the rear of the instrument and push on the assembly to mate the connectors to the midplane assembly.

  • Page 536: Power Supply Assembly

    Assembly Replacement Procedures Power Supply Assembly Power Supply Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the rear panel. Refer to the Rear Panel removal procedure. 3. Remove the top brace and reference bracket. Refer to the Top Brace and Reference Bracket removal procedure.
  • Page 537 Assembly Replacement Procedures Power Supply Assembly Figure 15-59 Power Supply Assembly Removal Keysight N9010A EXA Service Guide...

  • Page 538: Replacement

    Assembly Replacement Procedures Power Supply Assembly Replacement 1. Slide the power supply assembly into the slot at the rear of the instrument and push on the assembly to mate the connectors to the midplane assembly. 2. Refer to Figure 15-59. Replace the three screws (1) through the power supply bracket (3) and into the power supply (2).

  • Page 539: Cpu Assembly

    Assembly Replacement Procedures CPU Assembly CPU Assembly Removal Depending on the vintage of your instrument, the CPU assembly will look either like Figure 15-60 Figure 15-61. Figure 15-60 Current CPU Assembly - Rear Panel View Figure 15-61 Old CPU Assembly - Rear Panel View 1.
  • Page 540 Assembly Replacement Procedures CPU Assembly Figure 15-62 New CPU Assembly Removal Figure 15-63 Old CPU Assembly Removal Keysight N9010A EXA Service Guide...

  • Page 541: Replacement

    Assembly Replacement Procedures CPU Assembly Replacement 1. Slide the CPU assembly into the slot at the rear of the instrument and push on the assembly to mate the connectors to the midplane assembly. Secure the board with the ejectors. 2. Refer to Figure 15-62 Figure 15-63.

  • Page 542: Disk Drive

    Assembly Replacement Procedures Disk Drive Disk Drive There are two different types of disk drive installations that have been used in the X-Series Signal Analyzers. Originally the drive was located inside of the A4 CPU assembly, which would need to be removed and opened up in order to replace the drive.
  • Page 543 Assembly Replacement Procedures Disk Drive 1. Turn the instrument off and remove the AC power cord. 2. Refer to Figure 15-64. Locate and remove the existing disk drive carrier assembly (2) from the instrument by loosening the rear panel screw (1). Figure 15-64 Removing the Disk Drive Carrier Assembly Keysight N9010A EXA Service Guide...
  • Page 544 Assembly Replacement Procedures Disk Drive 3. Refer to Figure 15-65. Remove the 4 machine screws (1) from the disk drive carrier assembly that secure the drive (2). Figure 15-65 Disk Drive Screws Keysight N9010A EXA Service Guide...
  • Page 545 Assembly Replacement Procedures Disk Drive 4. Remove the disk drive (2) from the carrier assembly. 5. Place the new disk drive onto the carrier assembly and attach with the 4 machine screws (1). Torque to 9 in-lbs. 6. Refer to Figure 15-64.

  • Page 546: Internally Mounted Disk Drive

    Assembly Replacement Procedures Disk Drive Internally Mounted Disk Drive Drive Removal and Replacement 1. Turn the instrument off and remove the AC power cord. 2. Before replacing the A5 disk drive it is highly recommended that the factory calibration data be backed up to an external drive if at all possible. If this data is not backed up prior to replacing the disk drive all instrument adjustments and performance verification tests will need to be run after the drive is replaced.
  • Page 547 Assembly Replacement Procedures Disk Drive 4. Refer to Figure 15-67. Remove and discard the 15 machine screws (1) from the CPU assembly. The screws need to be discarded because dried precoated screws can cause cross threading. Do not remove the 4 Hard Drive screws yet. Figure 15-67 CPU Top Shield Screws Keysight N9010A EXA Service Guide...
  • Page 548 Assembly Replacement Procedures Disk Drive 5. Refer to Figure 15-68. Carefully lift up the CPU top shield and unlock the Hard Drive ribbon cable from the CPU Board by pressing down and out on the two locking tabs located on the sides of the connector as shown. Figure 15-68 Hard Drive Ribbon Cable Keysight N9010A EXA Service Guide...
  • Page 549 Assembly Replacement Procedures Disk Drive 6. Refer to Figure 15-69. Uninstall the existing Hard Drive from the Top Shield by removing and discarding the 4 machine screws (1) from the CPU assembly. Screws need to be discarded because dried precoated screws can cause cross threading.
  • Page 550 Assembly Replacement Procedures Disk Drive 10. Install the Programmed Hard Disk Drive to the Top Shield using precoated four Machine Screws (0515-5074) as shown in Figure 15-70. Torque screws to 9 inch-pounds. Figure 15-70 Top Shield/Hard Drive Assembly 11.Connect the Hard Drive ribbon cable from the Top Shield/Hard Drive/Ribbon Cable assembly to the CPU assembly.
  • Page 551 Assembly Replacement Procedures Disk Drive 14.Locate the Windows Vista License Sticker that came with the replacement hard drive and apply the sticker to the rear of the instrument as shown in Figure 15-71, covering the existing sticker if present. Figure 15-71 Windows License Sticker Rear Panel Location While the replacement disk drive has the Windows XP operating system loaded onto it, the license that accompanies it in this kit is for Windows Vista.

  • Page 552: A4A1 Cpu Memory Card (N9010A-Pc6 And N9010A-Pc7 Only)

    Assembly Replacement Procedures Disk Drive A4A1 CPU Memory Card (N9010A-PC6 and N9010A-PC7 only) 1. Refer to Figure 15-72. Remove the disk drive as described on page 542. The memory card (2) can be removed by pushing on the memory card and it will spring out.

  • Page 553: Disk Drive Interconnect

    Assembly Replacement Procedures Disk Drive Disk Drive Interconnect Removal 1. Remove the A5 Disk Drive assembly for the instrument. Refer to the “Disk Drive” removal procedure. 2. Remove the A4 CPU assembly from the instrument. Refer to the “CPU Assembly” removal procedure.
  • Page 554 Assembly Replacement Procedures Disk Drive 4. Remove the 2 screws (4) that attached the A4A1 Disk Drive Interconnect board (5) to the A4 CPU assembly. 5. Unplug and remove the A4A1 Disk Drive Interconnect board from the A4 CPU assembly by carefully sliding the board out towards the disk drive bay opening (6).

  • Page 555: Analog I.f. (Aif)/Digital I.f. (Dif) Assembly

    Assembly Replacement Procedures Analog I.F. (AIF)/Digital I.F. (DIF) Assembly Analog I.F. (AIF)/Digital I.F. (DIF) Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the rear panel. Refer to the Rear Panel removal procedure.
  • Page 556 Assembly Replacement Procedures Analog I.F. (AIF)/Digital I.F. (DIF) Assembly Figure 15-75 W38, W40, W41, W42 Removal - Option B40, MPB, or DP2 Keysight N9010A EXA Service Guide...
  • Page 557 Assembly Replacement Procedures Analog I.F. (AIF)/Digital I.F. (DIF) Assembly 4. Refer to Figure 15-76. Pull the AIF/DIF assembly part way out of the chassis. Remove cables W13, W14, and W15 or W37 from the AIF assembly. 5. The AIF/DIF assembly can be removed from the chassis by pulling straight out the back.

  • Page 558: Separate Aif/Dif Assembly

    Assembly Replacement Procedures Analog I.F. (AIF)/Digital I.F. (DIF) Assembly Separate AIF/DIF Assembly 1. To separate the AIF (1) from the DIF (2), unplug ribbon cable W2 from the AIF assembly. 2. Refer to Figure 15-77. From underneath the assembly, remove the three screws (3).

  • Page 559: Replacement

    Assembly Replacement Procedures Analog I.F. (AIF)/Digital I.F. (DIF) Assembly Replacement 1. Slide the AIF/DIF assembly into the slot at the rear of the instrument and push on the assembly to mate the connectors to the midplane assembly. 2. Refer to Figure 15-76.

  • Page 560: Midplane Assembly

    Assembly Replacement Procedures Midplane Assembly Midplane Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the rear panel. Refer to the Rear Panel removal procedure. 3. Remove the top brace and reference bracket. Refer to the Top Brace and Reference Bracket removal procedure.

  • Page 561: Replacement

    Assembly Replacement Procedures Midplane Assembly 8. Refer to Figure 15-79. Remove the six screws (2) attaching the midplane assembly (1) to the midplane bracket. The midplane assembly can now be pulled up from the chassis by leveraging up on the ejectors. Figure 15-79 Midplane Assembly Removal Replacement...
  • Page 562 Assembly Replacement Procedures Midplane Assembly 6. Replace the top brace and reference bracket. Refer to the Top Brace and Reference Bracket replacement procedure. 7. Replace the rear panel. Refer to the Rear Panel replacement procedure. 8. Replace the instrument outer case. Refer to the Instrument Outer Case replacement procedure.

  • Page 563: Motherboard Assembly

    Assembly Replacement Procedures Motherboard Assembly Motherboard Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the rear panel. Refer to the Rear Panel removal procedure. 3. Remove the top brace and reference bracket. Refer to the Top Brace and Reference Bracket removal procedure.
  • Page 564 Assembly Replacement Procedures Motherboard Assembly Figure 15-80 Midplane Bracket Removal Figure 15-81 Bottom Screws Keysight N9010A EXA Service Guide...
  • Page 565 Assembly Replacement Procedures Motherboard Assembly 15.Refer to Figure 15-82. Remove the left side chassis (same side as the fan) by removing the seven screws (four on the bottom). Figure 15-82 Chassis Side Removal Keysight N9010A EXA Service Guide...

  • Page 566: Replacement

    Assembly Replacement Procedures Motherboard Assembly 16.Refer to Figure 15-83. Remove the motherboard (1) by removing the four screws (2). Figure 15-83 Motherboard Assembly Removal Replacement 1. Refer to Figure 15-83. Place the motherboard (1) into position in the chassis and replace the four screws (2). Torque to 9 inch-pounds. 2.
  • Page 567 Assembly Replacement Procedures Motherboard Assembly 6. Replace the Front Frame Assembly. Refer to the Front Frame Assembly replacement procedure. 7. Replace the Midplane assembly. Refer to the Midplane Assembly replacement procedure. 8. Replace the L.O. Synthesizer assembly. Refer to the L.O.

  • Page 568: Fan Assembly

    Assembly Replacement Procedures Fan Assembly Fan Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the top brace. Refer to the Top Brace and Reference Bracket removal procedure. 3. Remove the Front Frame Assembly. Refer to the Front Frame Assembly removal procedure.
  • Page 569 Assembly Replacement Procedures Fan Assembly Replacing a Fan 1. Refer to Figure 15-85. To replace a fan, it is necessary to remove the 4 plastic rivets (4) that attach the fan (1) and guard (3) to the fan bracket. To do this use a small screwdriver to unscrew the rivet and remove it from the bracket.

  • Page 570: Replacement

    Assembly Replacement Procedures Fan Assembly Replacement 1. Plug the fan wires into the motherboard. 2. Refer to Figure 15-84. Place the fan assembly into position in the chassis. Replace the eight screws (1) to attach the fan assembly to the chassis. Torque to 9 inch-pounds.

  • Page 571: Input Connector Assembly

    Assembly Replacement Procedures Input Connector Assembly Input Connector Assembly Removal 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. 2. Remove the Front Frame Assembly. Refer to the Front Frame Assembly removal procedure. 3. Refer to Figure 15-86.

  • Page 572: Replacement

    Assembly Replacement Procedures Input Connector Assembly Replacement 1. Refer to Figure 15-86. Place the Input Connector Assembly (2) into position in the chassis. Replace the two screws (1) to attach the Input Connector Assembly to the chassis. Torque to 9 inch-pounds. Make sure that the O-ring (3) is installed correctly on the input connector.

  • Page 573: Front Frame Assembly

    Assembly Replacement Procedures Front Frame Assembly Front Frame Assembly Removal Make sure any connectors on the front panel are removed. 1. Remove the instrument outer case. Refer to the Instrument Outer Case removal procedure. If the analyzer has Option PRC, Portable Configuration, and you want to remove the bail handle and bumpers from the front frame, refer to the “Bail Handle Removal (Option PRC)”...

  • Page 574: Replacement

    Assembly Replacement Procedures Front Frame Assembly 4. Refer to Figure 15-88. Pull the Front Frame Assembly carefully away from the chassis. Remove the ribbon cable W1 from the mother board. Figure 15-88 Front Panel Cable Replacement 1. Reattach the ribbon cable W1. 2.

  • Page 575: Bail Handle Removal (Option Prc)

    Assembly Replacement Procedures Front Frame Assembly Bail Handle Removal (Option PRC) 1. Refer to Figure 15-89. Using the T-20 driver, remove the four screws (1), two on each side, to detach the Bail Handle Assembly (2) from the front frame. 2.

  • Page 576: Front Frame Assembly Components - Lcd

    Assembly Replacement Procedures Front Frame Assembly Front Frame Assembly Components - LCD Access to any of the Front Frame assemblies requires removal of the Front Frame Assembly from the chassis. Figure 15-90 Front Frame Assembly Parts Locator - LCD Item Reference Designator Description A1A2...
  • Page 577 Assembly Replacement Procedures Front Frame Assembly Item Reference Designator Description 28, 29, 30 Screw - M3 X 8 mm (TORX Pan Head) Screw - M3 X 5 mm (TORX Flat Head) Keysight N9010A EXA Service Guide...
  • Page 578 Assembly Replacement Procedures Front Frame Assembly Figure 15-91 Front Frame Assembly Exploded View - LCD Keysight N9010A EXA Service Guide...
  • Page 579 Assembly Replacement Procedures Front Frame Assembly Item Reference Designator Description A1A1 Front Frame A1A1MP2 Main Keypad Overlay A1A1MP3 Connector Overlay A1A1MP7 Front Frame Top Trim Strip (Use with standard Bench analyzer) A1A1MP9-10 Front Frame Side Trim Strip A1A1MP4 Front Frame Ground Spring A1A1MP5 Braided Gasket A1A1MP6...
  • Page 580 Assembly Replacement Procedures Front Frame Assembly Item Reference Designator Description Cable, Front Panel Interface Board to Motherboard (Ribbon) Screw - M2.5 X 8 mm (TORX Pan Head) Screw - M3 X 8 mm (TORX Pan Head) Screw - M3 X 8 mm (TORX Pan Head) Screw - M3 X 8 mm (TORX Pan Head) Screw - M3 X 5 mm (TORX Flat Head) Display Assembly - LCD...
  • Page 581 Assembly Replacement Procedures Front Frame Assembly 5. Refer to Figure 15-92. Disconnect the backlight wires (2) from the inverter board. Figure 15-92 Inverter Board Removal 6. To remove the A1A4 LCD Inverter board (1), remove the two screws (3) securing the inverter board to the display bracket (5). 7.
  • Page 582 Assembly Replacement Procedures Front Frame Assembly Replacement 1. To replace the A1A3 LCD (4), place it on the display bracket (5) and replace the four screws. Torque to 9 inch pounds. 2. To replace the A1A4 Inverter board (1), place it on the display bracket (5) and replace the two screws (3).
  • Page 583 Assembly Replacement Procedures Front Frame Assembly Daughter Board, Interface Board and Keypad Removal 1. Refer to Figure 15-95. Remove the RPG knob (17) by carefully pulling it off. 2. Remove the display. Refer to the Display Assembly - LCD removal procedure.

  • Page 584: Front Frame Assembly Components - Led

    Assembly Replacement Procedures Front Frame Assembly Front Frame Assembly Components - LED Access to any of the Front Frame assemblies requires removal of the Front Frame Assembly from the chassis. Figure 15-93 Front Frame Parts - LED Item Description A1MP14 Display Bracket A1A5 Front Panel Daughter Board A1MP24 Magnetic Shield (Display Bracket to Front Panel Interface/Speaker Bracket)
  • Page 585 Assembly Replacement Procedures Front Frame Assembly Figure 15-94 Front Frame Parts (shields off) - LED Item Description A1A2 Front Panel Interface Board A1A2MP1 Speaker A1A2MP2 Speaker Foam A1W1 Flex Circuit, Display to Front Panel Interface Board A1W3 Power Cable, Front Panel Interface board to DC-DC Converter Keysight N9010A EXA Service Guide...
  • Page 586 Assembly Replacement Procedures Front Frame Assembly Figure 15-95 Front Frame Exploded View - LED Keysight N9010A EXA Service Guide...
  • Page 587 Assembly Replacement Procedures Front Frame Assembly Item Description Front Frame Main Keyboard Overlay Overlay, Left Display Cover Plate Front Frame Side Trim Strip (plastic) Front Frame Ground Spring A1A2 Front Panel Interface Board A1A2MP1 Speaker A1A2MP2 Speaker Foam A1A3 Liquid Crystal Display A1A5 Front Panel Daughter Board A1MP1 Main Keypad A1MP2 Display Keypad...
  • Page 588 Assembly Replacement Procedures Front Frame Assembly Figure 15-96 Front Frame Assembly Shields - LED Item Description A1MP23 Front Panel Interface/Speaker Bracket Screw M3 X 0.5 (5mm long) (0515-0372) Keysight N9010A EXA Service Guide...
  • Page 589 Assembly Replacement Procedures Front Frame Assembly Display Assembly - LED Removal 1. Refer to Figure 15-96. Remove the front panel shield by removing the four screws (28). 2. Refer to Figure 15-97. Disconnect the flex circuit A1W1 (1) and A1W3 (2) from the front panel interface board (4).
  • Page 590 Assembly Replacement Procedures Front Frame Assembly Figure 15-98 LED and Display Bracket Separation Replacement 1. Refer to Figure 15-97. Place the display bracket into position in the Front Frame Assembly. Reconnect the flex circuit A1W1 (1) and A1W3 (2) to the front panel interface board (4).
  • Page 591 Assembly Replacement Procedures Front Frame Assembly Daughter Board, Interface Board and Keypad Removal 1. Refer to Figure 15-95. Remove the RPG knob (17) by carefully pulling it off. 2. Remove the display. Refer to the Display Assembly - LED removal procedure.
  • Page 592 Assembly Replacement Procedures Front Frame Assembly Keysight N9010A EXA Service Guide...

  • Page 593: What You Will Find In This Chapter

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 16 Post-Repair Procedures What You Will Find in This Chapter This chapter provides information that will enable you to return an instrument to full operation following the replacement of any instrument assembly. This information includes a table that shows which adjustments and/or performance tests must be executed after replacing an assembly.

  • Page 594: Post-Repair Procedures

    Post-Repair Procedures Post-Repair Procedures Post-Repair Procedures Table 16-1 lists the adjustments and performance verification tests needed after an assembly replacement. After an assembly is replaced, find the assembly that has been replaced in the left-hand column, and then perform the recommended adjustment and/or performance verification test.
  • Page 595 Post-Repair Procedures Post-Repair Procedures Table 16-1 Post-Repair Testing Requirements Performance Verifications to Perform After Ad justments to Perform Assembly (in the order listed) Ad justments A1A2 None Residual Responses Front Panel Displayed Average Noise Level Interface A1A3 None Residual Responses Liquid Crystal Displayed Average Noise Level Display...
  • Page 596 Post-Repair Procedures Post-Repair Procedures Table 16-1 Post-Repair Testing Requirements (Continued) Performance Verifications to Perform After Ad justments to Perform Assembly (in the order listed) Ad justments A9 & A10 Hardware Statistical Reset Utility Residual Responses RF Attenuators 50 MHz Calibrator Adjustment Displayed Average Noise Level Frequency Response (All Adjustments) Spurious Responses...
  • Page 597 Post-Repair Procedures Post-Repair Procedures Table 16-1 Post-Repair Testing Requirements (Continued) Performance Verifications to Perform After Ad justments to Perform Assembly (in the order listed) Ad justments Frequency Reference Accuracy FPGA Synchronization Reference Residual Responses 10 MHz Frequency Reference Adjust Assembly Displayed Average Noise Level 50 MHz Calibrator Amplitude Adjust Frequency Readout Accuracy...

  • Page 598: Additional Tasks

    Post-Repair Procedures Post-Repair Procedures Additional Tasks Calibration Data Backup and Restore Data Backup In order for the instrument being repaired to not need all of the instrument adjustments and performance verification tests to be run after the A5 Disk Drive is replaced the calibration data will need to be backed up onto an external drive prior to removing the existing disk drive.
  • Page 599 Post-Repair Procedures Post-Repair Procedures S/W Revision Greater Than or Equal To A.01.55 and Less Than A.02.00 1. Close the instrument application software by pressing File, Exit, Enter using the front panel keys. 2. Connect a USB mouse to one of the instrument front panel USB ports. 3.
  • Page 600 Post-Repair Procedures Post-Repair Procedures S/W Revision Greater Than or Equal To A.02.00 1. Connect a USB keyboard and mouse to two of the instrument rear panel USB ports 2. Connect a USB FLASH drive to one of the front panel USB ports. 3.
  • Page 601 Post-Repair Procedures Post-Repair Procedures Data Restore (.xml File) If the instrument being repaired was using a software version prior to A.01.55 it would have been using an .xml database file for its calibration data, and this data will need to be restored using the following process. 1.
  • Page 602 Post-Repair Procedures Post-Repair Procedures Data Restore (SQL Database) If the instrument being repaired was using instrument software version A.01.55 or newer prior to this repair it was already using an SQL database file for its calibration data, so it can be easily restored with the instrument Alignment Data Wizard using the following procedure.
  • Page 603 Post-Repair Procedures Post-Repair Procedures BIOS Settings Verification Whenever either the A4 CPU assembly or the A4BT1 CPU Battery is changed there are certain BIOS settings that need to be verified. If these are not set correctly the instrument may not boot up or operate correctly. The BIOS settings that need to be verified, as well as the BIOS configuration screens used, will vary depending on the A4 CPU assembly.
  • Page 604 Technologies" will appear in white letters on a black background. 4. Press “F2” and then “Delete” on the external keyboard when at the Agilent Technologies or Keysight Technologies splash screen to enter the CPU BIOS Setup Utility. The older CPUs (N9010A-PC1, N9010A-PC2, and N9010A-PC3) respond to “F2”...
  • Page 605 Post-Repair Procedures Post-Repair Procedures Figure 16-4 Older Dual-Core Processor BIOS Setup Utility Main Screen Figure 16-5 Celeron Processor BIOS Setup Utility Main Screen Keysight N9010A EXA Service Guide...
  • Page 606 Post-Repair Procedures Post-Repair Procedures Figure 16-6 High Performance Celeron/Dual-Core Processor BIOS Setup Utility Main Screen Keysight N9010A EXA Service Guide...
  • Page 607 Post-Repair Procedures Post-Repair Procedures Single-Core Processor There are two settings in the CPU BIOS that must be verified and may require changing when the A4 CPU assembly or A4BT1 CPU battery is replaced. These settings need to be correct in order for the analyzer to boot up and operate correctly.
  • Page 608 Post-Repair Procedures Post-Repair Procedures 3. Press the “+” key on the external keyboard to bring IDE 2 to the top of the list as shown in Figure 16-8. Figure 16-8 IDE 2 at Top of List Keysight N9010A EXA Service Guide...
  • Page 609 Post-Repair Procedures Post-Repair Procedures Enabling Spread Spectrum 1. Press the Left Arrow on the external keyboard to highlight the Advanced tab as shown in Figure 16-9. Figure 16-9 Advanced Tab Highlighted 2. Press the Down Arrow on the external keyboard to highlight CK-408 Spread Spectrum 3.
  • Page 610 Post-Repair Procedures Post-Repair Procedures 5. Press the Enter key on the external keyboard to confirm the BIOS configuration changes as per Figure 16-10. Figure 16-10 Confirm BIOS Configuration 6. Perform the remaining adjustments and performance tests as per Table 16-1 for the assembly that was changed.
  • Page 611 Post-Repair Procedures Post-Repair Procedures Older Dual-Core Processor There is one setting in the CPU BIOS that must be verified and may require changing when the A4 CPU assembly or A4BT1 CPU battery is replaced. This setting needs to be correct in order for the analyzer to always boot up correctly.
  • Page 612 Post-Repair Procedures Post-Repair Procedures Figure 16-12 IDE HDD Selected 3. If IDE HDD is not listed first in the boot priority, press the Down Arrow on the external keyboard to highlight IDE HDD as shown in Figure 16-12. Keysight N9010A EXA Service Guide...
  • Page 613 Post-Repair Procedures Post-Repair Procedures 4. Press the “+” key on the external keyboard to bring IDE HDD to the top of the list as shown in Figure 16-13. Figure 16-13 IDE HDD at Top of List Keysight N9010A EXA Service Guide...
  • Page 614 Post-Repair Procedures Post-Repair Procedures Save Changes 1. Press “F10” on the keyboard to save changes. 2. Press the Enter key on the external keyboard to confirm the BIOS configuration changes as per Figure 16-14. Figure 16-14 Confirm BIOS Configuration Keysight N9010A EXA Service Guide...
  • Page 615 Post-Repair Procedures Post-Repair Procedures Celeron Processor There is one setting in the CPU BIOS that must be verified and may require changing when the A4 CPU assembly or A4BT1 CPU battery is replaced. This setting needs to be correct in order for the analyzer to always boot up correctly.
  • Page 616 Post-Repair Procedures Post-Repair Procedures 2. If “IDE 0” is not listed first in the boot priority, press the Down Arrow on the external keyboard to highlight “IDE 0” as shown in Figure 16-16. Figure 16-16 IDE 0 Selected Keysight N9010A EXA Service Guide...
  • Page 617 Post-Repair Procedures Post-Repair Procedures 3. Press the “+” key on the external keyboard to bring IDE 0 to the top of the list as shown in Figure 16-17. Figure 16-17 IDE 0 at the Top of List Keysight N9010A EXA Service Guide...
  • Page 618 Post-Repair Procedures Post-Repair Procedures Save Changes 1. Press “F10” on the keyboard to save changes. 2. Press the Enter key on the external keyboard to confirm the BIOS configuration changes as per Figure 16-18. Figure 16-18 Confirm BIOS Configuration Keysight N9010A EXA Service Guide...
  • Page 619 Post-Repair Procedures Post-Repair Procedures High-Performance Celeron/Dual-Core Processor Save Changes 1. Press “F3” on the external keyboard to select Optimized Defaults. A dialog box will appear asking you to confirm your selection. Select “Yes” and press the Enter key on the external keyboard. Figure 16-19 Selecting Optimized Defaults 1.
  • Page 620 Post-Repair Procedures Post-Repair Procedures Figure 16-20 Save Changes Keysight N9010A EXA Service Guide...
  • Page 621 1. Connect an external USB keyboard to one of the front panel USB ports. 2. Turn on instrument power. 3. Confirm Keysight Technologies splash screen comes up within a few seconds. 4. Press the key on the keyboard specified on the initial boot screen to enter the setup utility.
  • Page 622 Post-Repair Procedures Post-Repair Procedures End User License Agreement (EULA) Acceptance (Software versions ≤ A.06.08) The Microsoft End-User License agreement will be displayed whenever the A5 Disk Drive has been replaced, and this must be accepted. The License Agreement screen asks you to accept the terms of the End-User License Agreement for Windows XP.
  • Page 623 Post-Repair Procedures Post-Repair Procedures 1. Press Enter to proceed with the Windows XP setup. 2. When you see the Windows XP Setup Wizard screen as seen in Figure 16-22, press Enter to move to the License Agreement screen. Figure 16-22 Windows XP Setup Wizard 3.
  • Page 624 Post-Repair Procedures Post-Repair Procedures End User License Agreement (EULA) Acceptance (Software versions ≥ A.07.00) Beginning with instrument software version A.07.00 and later, it is no longer necessary to actively accept the end-user license agreement (EULA) when replacing the A5 Disk Drive. However, a Welcome screen, as in Figure 16-23 below, will give you information about the EULA.
  • Page 625 Post-Repair Procedures Post-Repair Procedures 1. Press Enter to proceed with the Windows XP setup. See Figure 16-24. Figure 16-24 Windows XP Setup Wizard 2. The Date and Time Settings screen is used to set the appropriate date, time and time zone. These settings may be configured later by the end user.
  • Page 626 Post-Repair Procedures Post-Repair Procedures FPGA Synchronization There is FPGA (Field-Programmable Gate Array) program code on many different assemblies inside of the instrument, and all of these must be of a compatible version with the instrument software revision. In order to ensure that this requirement is met when either an assembly is replaced that contains FPGA code on it, or if the A5 Disk Drive is replaced with a drive that has a different version of software than the previous drive, you will need to take...
  • Page 627 Post-Repair Procedures Post-Repair Procedures Updating the Instrument FPGA Code Instruments that have software revision A.02.00 or newer have a utility included in them that will update the FPGA code on all of the different assemblies in the instrument that have it. When this utility is run it will detect the assemblies that need to be updated and will update them to the correct revision.
  • Page 628 Post-Repair Procedures Post-Repair Procedures Figure 16-25 FPGA Programming Utility To program the FPGA code enter 1 and press Enter. You will need to confirm this selection by pressing 1 and Enter one more time. 8. The programming of the FPGA code could take a few minutes to complete. Once it has finished the instrument will reboot itself to use the new code and this process will then be completed.
  • Page 629 Post-Repair Procedures Post-Repair Procedures Programming Model and Serial Numbers Since the instrument model and serial numbers are stored only on the A7 Midplane board assembly, this information will be lost when this board assembly is replaced. Until the instrument model and serial numbers are restored the instrument application software will not allow any user measurements to be made, due to the fact that all previously installed license keys will not be accepted.
  • Page 630 Post-Repair Procedures Post-Repair Procedures Keysight N9010A EXA Service Guide...

  • Page 631: 17 Functional Tests

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 17 Functional Tests Functional Test Versus Performance Verification Functional tests are tests of various instrument parameters that give a high degree of confidence that the analyzer is operating correctly. They are recommended as a check of analyzer operation for incoming inspection or after a repair.

  • Page 632: Before Performing A Functional Test

    Functional Tests Before Performing a Functional Test Before Performing a Functional Test 1. Ensure that you have the proper test equipment. 2. Switch on the unit under test (UUT) and let it warm up (in accordance with warm-up requirements in the instrument specifications). 3.

  • Page 633: Test Equipment

    Functional Tests Test Equipment Test Equipment The table below summarizes the test equipment needed to perform all of the functional tests. Alternate equipment model numbers are given in case the recommended equipment is not available. If neither the recommended nor the alternative test equipment are available, substitute equipment that meets or exceeds the critical specifications listed.
  • Page 634 Functional Tests Test Equipment Analyzer Al ternate Recommended Option Item Critical Specifications Keysight Keysight Model Model 10 dB Fixed Attenuator Frequency: 50 MHz 8493C Option 010 8493A (2 required) Option 010 VSWR: < 1.2:1 8493B Option 010 Preamp 30 dB Fixed Attenuator Accuracy: <...
  • Page 635 Functional Tests Test Equipment Analyzer Al ternate Recommended Option Item Critical Specifications Keysight Keysight Model Model 532, 544 Power Sensor Frequency Range: 50 MHz to 8487A 44 GHz Amplitude Range: −30 to +20 dBm Low Power Sensor Frequency Range: 50 MHz to 3.6 GHz 8481D 8485D 8487D...

  • Page 636: Displayed Average Noise Level (Danl)

    Functional Tests Displayed Average Noise Level (DANL) Displayed Average Noise Level (DANL) Test Limits (with 0 dB input attenuation) Table 17-1 for values. The Displayed Average Noise Level (DANL) of the signal analyzer is measured across a 10 kHz frequency span at several center frequencies. The analyzer input is terminated into a 50Ω...
  • Page 637 Functional Tests Displayed Average Noise Level (DANL) BW, Video BW, 100, Hz Meas Setup, Average/Hold, Number, 20, Enter Trace/Detector, Trace Average Single 4. Press Restart, then wait for Average/Hold to display 20/20. 5. Press View/Display, Display, then press Display Line, On. 6.
  • Page 638 Functional Tests Displayed Average Noise Level (DANL) Table 17-1 Displayed Average Noise Level (DANL) Results Measured Average Normalized Average Noise Level/ Test Limits Test Limits Center Noise Level (dBm) (1 Hz BW) (dBm) (dBm) (dBm) Frequency Options 503, Options 507, 513, 526 532, 544 10 MHz –145...

  • Page 639: Frequency Readout Accuracy

    Functional Tests Frequency Readout Accuracy Frequency Readout Accuracy Test Limits Frequency Readout Accuracy is equivalent to the following equation: 0.25% span 5% RBW 2 Hz horizontal resolution ± × × × See results table for actual values. The frequency readout accuracy is measured in several spans and center frequencies that allow both internal analyzer synthesizer modes and prefilter bandwidths to be tested.

  • Page 640: Procedure

    Functional Tests Frequency Readout Accuracy Figure 17-2 Frequency Readout Accuracy Test Setup Procedure 1. Configure the equipment as shown in Figure 17-2. Confirm the analyzer’s built-in auto alignment has been performed within the past 24 hours. 2. On the synthesized sweeper, press PRESET, then set the controls as follows: FREQUENCY, 1505, MHz POWER LEVEL, –10, dBm...
  • Page 641 Functional Tests Frequency Readout Accuracy 7. Repeat step 4 through step 6 until the Marker Frequency Readout column Table 17-2 is complete. Table 17-2 Frequency Readout Accuracy Results Span Center Marker Frequency Minimum Maximum (MHz) Frequency (MHz) Readout 2990 1505 1495.9 MHz 1514.1 MHz 127.2...

  • Page 642: Second Harmonic Distortion (Shd)

    Functional Tests Second Harmonic Distortion (SHD) Second Harmonic Distortion (SHD) Test Limits Applied Frequency Mixer Level Distortion 40 MHz –10 dBm < –55 dBc This test checks the second harmonic distortion of the signal analyzer by tuning to twice the input frequency and examining the level of the distortion product.

  • Page 643: Procedure

    Functional Tests Second Harmonic Distortion (SHD) Figure 17-3 Second Harmonic Distortion Test Setup Procedure 1. Configure the equipment as shown in Figure 17-3. 2. Press Mode, Spectrum Analyzer, Mode Preset on the signal analyzer and Preset the synthesized sweeper. 3. Set up the synthesized sweeper by pressing: Frequency, 40, MHz Amplitude, –10, dBm 4.
  • Page 644 Functional Tests Second Harmonic Distortion (SHD) 9. Press Peak Search. Enter the displayed value under the Measured Second Harmonic Distortion (dBc) heading in Table 17-3. Table 17-3 Second Harmonic Distortion Results Applied Frequency Measured Second Harmonic Distortion Mixer Level Specification (MHz) (dBc) (dBm)

  • Page 645: Amplitude Accuracy At 50 Mhz

    Functional Tests Amplitude Accuracy at 50 MHz Amplitude Accuracy at 50 MHz Test Limits Amplitude Accuracy should remain within 1.13 dB of the measured source value across the range of source levels and changes in resolution bandwidth. The Preamp (option P03, P07, P32, P44) should remain within ±1.3 dB of measured values.

  • Page 646: Procedure

    Functional Tests Amplitude Accuracy at 50 MHz Figure 17-4 Amplitude Accuracy Test Setup Procedure 1. Zero and calibrate the power meter. 2. Configure equipment as shown in Figure 17-4, with the power splitter connected directly to the signal analyzer input through the adapter. To minimize stress on the test equipment connections, support the power sensor.
  • Page 647 Functional Tests Amplitude Accuracy at 50 MHz Input/Output, RF Input, RF Coupling, select DC (except Options 532, and 544) Sweep/Control, Sweep Setup, Swp Time Rules, SA - Accuracy Meas Setup, Average/Hold Number, 20, Enter Trace/Detector, Trace Average Single 7. Perform the following steps for each row listed in Table 17-4: a.Set the synthesized sweeper amplitude to the value listed in the...

  • Page 648: Testing Preamp Option (P03, P07, P13, P26, P32, P44)

    Functional Tests Amplitude Accuracy at 50 MHz Testing Preamp Option (P03, P07, P13, P26, P32, P44) Instruments containing Options P03, P07, P13, P26, P32, or P44 must have the preamp function turned on and tested. Procedure 1. On the analyzer, press AMPTD Y Scale, More, Internal Preamp, Low Band. 2.

  • Page 649: Frequency Response (Flatness)

    Functional Tests Frequency Response (Flatness) Frequency Response (Flatness) Test Limits Frequency Range Limit Relative to 50 MHz 9 kHz to 3.6 GHz ±1.7 dB > 3.6 GHz to 7.0 GHz ±3.0 dB > 7.0 GHz to 13.6 GHz ±3.5 dB >...

  • Page 650: Procedure

    Functional Tests Frequency Response (Flatness) Critical Specifications Recommended Item (for this test) Keysight Model Frequency Range: 50 MHz to 26.5 GHz 11667B Power Splitter Tracking between ports: < 0.25 dB Frequency Range: 50 MHz to 44 GHz 11667C Power Splitter Tracking between ports: <...
  • Page 651 Functional Tests Frequency Response (Flatness) 4. Press Mode, Spectrum Analyzer, Mode Preset on the signal analyzer, and press Preset on the synthesized sweeper. 5. Set up the synthesized sweeper by pressing: CW, 50, MHz Power level, –4, dBm 6. Set up the signal analyzer by pressing: Input/Output, More, Freq Ref In, External FREQ Channel, Center Freq, 50, MHz SPAN X Scale, Span, 50, kHz...
  • Page 652 Functional Tests Frequency Response (Flatness) Table 17-6 Frequency Response (Flatness) Results Analyzer Power Meter Meas Error Flatness Flatness Error Amplitude Measurement Normalized Test Limits Center to 50 MHz (dB) Frequency Meas Power Meas Flat meter error Norm 50 MHz 1 GHz ±1.7 dB 2 GHz 1.7 dB...

  • Page 653: Frequency Response (Flatness), Preamp On

    Functional Tests Frequency Response (Flatness), Preamp On Frequency Response (Flatness), Preamp On Test Limits Frequency Range Limit Relative to 50 MHz 100 kHz to 3.6 GHz ±2.0 dB > 3.6 GHz to 8.4 GHz ±3.0 dB > 8.4 GHz to 13.6 GHz ±3.5 dB >...

  • Page 654: Procedure

    Functional Tests Frequency Response (Flatness), Preamp On Critical Specifications Recommended Item (for this test) Keysight Model Frequency Range: 50 MHz to 26.5 GHz 8485D Power Sensor Amplitude Range: –65 dBm to –55 dBm Frequency Range: 50 MHz to 44 GHz 8487D Power Sensor Amplitude Range: –65 dBm to –55 dBm...
  • Page 655 Functional Tests Frequency Response (Flatness), Preamp On 2. Configure the equipment as shown in Figure 17-6. Connect the power splitter to the signal analyzer input using the appropriate adapter. Do not use a cable. 3. Assure the signal analyzer’s built-in auto alignment has been performed within the last 24 hours.
  • Page 656 Functional Tests Frequency Response (Flatness), Preamp On 17.Compute the flatness error normalized to 50 MHz: (Meas − Meas @ 50 MHz) Error Error 18.Enter the computed flatness error value into the Flat column of Table Norm 17-6. 19.Compare the value of Flat to the test limit.
  • Page 657 Functional Tests Frequency Response (Flatness), Preamp On Table 17-7 Frequency Response (Flatness) Results Analyzer Power Meter Meas Error Flatness Flatness Error Amplitude Measurement Normalized Test Limits Center to 50 MHz (dB) Frequency Meas Power Meas Flat meter error Norm 50 MHz 1 GHz ±2.0 dB 2 GHz...

  • Page 658: Scale Fidelity

    Functional Tests Scale Fidelity Scale Fidelity Test Limits The scale fidelity error will be ≤ ±1.0 dB with ≤ −10 dBm at the mixer. This test checks the scale fidelity of the instrument by maintaining a constant reference level and measuring signals of different amplitudes over most of the display range.

  • Page 659: Procedure

    Functional Tests Scale Fidelity Figure 17-7 Scale Fidelity Setup Averaging is used for all measurements to improve repeatability and reduce measurement uncertainty. Procedure 1. Configure the equipment as shown in Figure 17-7. 2. Preset the Source and press Mode, Spectrum Analyzer, Mode Preset on the analyzer.
  • Page 660 Functional Tests Scale Fidelity 7. On the analyzer, press the Single, Restart to trigger a 10 sweep average. 8. On the analyzer, activate the Marker Delta function by pressing Peak Search, Marker Delta. 9. Perform the following steps for each attenuator setting listed in the table below: a.Select the next External attenuator setting.
  • Page 661 Functional Tests Scale Fidelity Table 17-8 Scale Fidelity Results Minimum Marker Del ta Value Maximum External Attenuator Setting (dB) (dB) (dB) Reference –11.0 –9.0 –21.0 –19.0 –31.0 –29.0 –41.0 –39.0 –51.0 –49.0 Keysight N9010A EXA Service Guide...
  • Page 662 Functional Tests Scale Fidelity Keysight N9010A EXA Service Guide...

  • Page 663: 18 Instrument Software

    Keysight Technologies X-Series Signal Analyzers N9010A EXA Signal Analyzer Service Guide 18 Instrument Software What You Will Find in This Chapter Instrument Software Overview on page 664 Software Licensing on page 665 Software Updates on page 666 Instrument Measurement Application Software on page 666...

  • Page 664: Instrument Software Overview

    Instrument Software Instrument Software Overview Instrument Software Overview The instrument software, installed in every instrument, contains not only the spectrum analyzer measurement application, but also all of the other currently available measurement applications. However, only the licensed applications will be seen and available for use. To view the currently licensed measurement applications press System, Show, System.

  • Page 665: Software Licensing

    Instrument Software Software Licensing Software Licensing All application software needs to have a valid license in order to be available for use. This also includes the spectrum analyzer application (N9060A or N9060B). Keysight N9010A EXA Service Guide...

  • Page 666: Software Updates

    Instrument Software Software Updates Software Updates Instrument Measurement Application Software Updates are installed much like most other types of commercial software packages. The latest revision of the software, along with complete installation instructions, can be obtained by one of two methods, which are: Web Download: The latest revision of the software can be downloaded from: www.keysight.com/find/xseries_software...
  • Page 667 Index RF front end high band troubleshooting, troubleshooting, see A13 RF front end assembly low band troubleshooting, A7 midplane assembly part number, part number, removal, A8 motherboard Numerics troubleshooting, description, A1A2 front panel interface board part number, description, removal, 50 ohm load, part number, troubleshooting, 50 ohm/75 ohm minimum loss...
  • Page 668 See also individual functional part number, electronic attenuator path, 142, tests, removal, 583, Electronic Attenuator Test (Option Functional Tests Guide on Keysight Technologies EA3) troubleshooting, CD-ROM, contacting, electrostatic discharge, Sales and Service offices, enabling spread spectrum, 609, 614, 618,...
  • Page 669 Index see A7 midplane removal, midplane assembly remove removal, see individual assemblies midplane bracket repairs see A1A3 LCD part number, see post-repair procedures motherboard replace front panel, see A8 motherboard see individual assemblies green, mouse replaceable parts, power on, USB, required equipment, standby, required test equipment...
  • Page 670 Index adjustments, performance verification tests, post-repair, troubleshooting, tests. See functional tests timebase key description, top brace part number, removal, transient limiter, troubleshooting basics, before you start, equipment needed, high band, 173, low band, 148, see individual assemblies updating firmware, updating measurement applications, upgrades, URL, 42,...
  • Page 671 This information is subject to change without notice. © Keysight Technologies 2008-2017 Edition 1, May 2017 N9010-90050 www.keysight.com...

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