Page 1 Keysight N9000A CXA Signal Analyzer This manual provides documentation for the following instruments: N9000A Option 503 (9 kHz 3.0 GHz) N9000A Option 507 (9 kHz 7.5 GHz) Notice: This document contains references to Agilent. Please note that Agilent’s Test and Measurement business has become Keysight Technologies.
Page 2 Manufacturing Part Number: N9000-90018 Printed in USA August 2014 © Copyright 2010-2014 Keysight Technologies, Inc. Notice The information contained in this document is subject to change without notice. Agilent Technologies makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Page 3 The power cord is connected to internal capacitors that may remain live for 5 WARNING seconds after disconnecting the plug from it’s power supply. The detachable power cord is the instrument disconnecting device. It WARNING disconnects the mains circuits from the mains supply before other parts of the instrument.
Page 4 the warranty period, Agilent Technologies Company will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by Agilent Technologies. Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies shall pay shipping charges to return the product to Buyer.
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Page 7: Table Of Contents
Contents Overview What You Will Find in This Chapter ............16 Agilent CXA Signal Analyzer Overview .
Page 8 Contents Verify Video Signal Path Integrity ............61 Video Controller / LCD Troubleshooting .
Page 9 Contents 2nd IF Amplifier ..............129 2nd IF Filter.
Page 10 Contents What You Will Find in This Chapter ........... . . 162 A5 Power Supply Description .
Page 11 Contents What You Will Find in This Chapter ........... . . 226 Before Starting .
Page 12 Contents Front Frame Assembly ..............267 Removal .
Page 13 Contents...
Page 14 Contents...
Page 15: Overview
Overview...
Page 16: What You Will Find In This Chapter
Overview What You Will Find in This Chapter What You Will Find in This Chapter This chapter provides overview information on your spectrum analyzer. The following sections are found in this chapter: • Agilent CXA Overview................page 17 • Instrument Option Descriptions .............. page 18 •...
Page 17: Agilent Cxa Signal Analyzer Overview
Overview Agilent CXA Signal Analyzer Overview Agilent CXA Signal Analyzer Overview The Agilent CXA 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 ©...
Page 18: Instrument Option Descriptions
Overview Instrument Option Descriptions Instrument Option Descriptions The CXA 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 19: Signal Analyzer Accessories
Overview Signal Analyzer Accessories Signal Analyzer Accessories A number of accessories are available from Agilent Technologies to help you configure your analyzer for your specific applications. They can be ordered through your local Agilent Sales and Service Office and are listed below. Manual Set on CD-ROM The entire documentation set excluding the CXA Service Guide is shipped with the instrument on CD-ROM.
Page 20: 50 Ohm Load
Overview Signal Analyzer Accessories 50 Ohm Load The Agilent 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 21: Rf And Transient Limiters
Overview Signal Analyzer Accessories • The Agilent 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 22: 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 23 Overview Before You Start Troubleshooting This is a Safety Class 1 Product (provided with a protective earthing ground WARNING incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous.
Page 24: 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 25: 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 26: 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 CXA Signal Analyzer. They include the following: • Calibration Application Software • USB Keyboard and Mouse •...
Page 27: Usb Keyboard And Mouse
An optional 4 GB device can be ordered along with an instrument as N9000A-EFM, as an upgrade as N9000AK-EFM, or by using the part number 0950-5165.
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 Alternative Agilent Model Agilent Model Number Number RF Signal Generator Frequency: 10 MHz to 26.5 GHz 8665B A, P (one PSG may be used for Frequency Resolution: 1 Hz (Option 1EA) Harmonic level: <...
Page 30 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Alternative Agilent Model Agilent Model Number Number Microwave Power Sensor Frequency Range: 50 MHz to 26.5 GHz 8485A A, P (2 required) Amplitude Range: -30 to +20 dB Zero Set: ±...
Page 31 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Alternative Agilent Model Agilent Model Number Number Attenuator Type N connector kit to connect 8496G to 8494G 11716A Interconnect Kit Attenuator Driver Compatible with the 8496G and 8494G step 11713A attenuators.
Page 32 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Alternative Agilent Model Agilent Model Number Number Directional Bridge Frequency Range: 5 MHz to 3 GHz 86205A Directivity: ≤ 5 MHz: 30 dB 5 MHz to 2 GHz:40 dB 2 GHz to 3 GHz: 30 dB VSWR: ≤...
Page 33 Overview Service Equipment You Will Need Table 1-1 Required Test Equipment Instrument Critical Specifications Recommended Alternative Agilent Model Agilent Model Number Number 1 GHz Notch Center frequency: 1.0001 GHz Trilithic CFN-2-1000.1 Adapters Type-N (f) to Type-N (f) Frequency: DC to 18 GHz 1250-1472 VSWR: ≤...
Page 34 Overview Service Equipment You Will Need b. Supported PSG models: E8244A E8254A E8257C E8257D E8267C E8267D Note: One PSG with Option 567, 1EA, 1E1, 007, and UNX or UNR can be used as the Microwave Signal Generator #1, Low Noise Signal Generator, and the RF Signal Generator.
Page 35 Overview Service Equipment You Will Need Table 1-2 1 dB Step Attenuator Nominal Attenuation Attenuator Section Allowable Uncertainty (dB) (dB) (1 dB) (2 dB) (4 dB) (4 dB) < 0.005 < 0.010 < 0.010 Table 1-3 10 dB Step Attenuator Nominal Attenuation Attenuator Section Allowable Uncertainty...
Page 36: 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 Agilent X-Series Signal Analyzer Calibration Application Software. Refer to Chapter 14 , “Post-Repair Procedures”...
Page 37: Contacting Agilent Technologies
Table 1-4. In any correspondence or telephone conversations, refer to the instrument by its model number (N9000A) and full serial number (ex. MY49250887). With this information, the Agilent representative can quickly determine whether your unit is still within its warranty period.
Page 38 Overview Contacting Agilent Technologies Table 1-4 Contacting Agilent Online assistance: www.agilent.com/find/assist United States Japan New Zealand Europe (tel) 1 800 829-4444 (tel) (+81) 426 56 7832 (tel) 0 800 738 378 (tel) (+31) 20 547 2323 (fax) (+81) 426 56 7840 (fax) (+64) 4 495 8950 (fax) (+31) 20 547 2390 Canada...
Page 39: Instrument Serial Numbers
Overview Contacting Agilent Technologies Instrument Serial Numbers Agilent makes frequent improvements to its products enhancing performance, usability, or reliability. Agilent 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 40: 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 Agilent for servicing, the phone numbers are mentioned in Table 1-4, “Contacting Agilent,” on page 38.
Page 41: Other Packaging
Overview How to Return Your Instrument for Service Other Packaging Instrument damage can result from using packaging materials other than those CAUTION 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. They cause equipment damage by generating static electricity and by lodging in the instrument louvers, blocking airflow.
Page 42 Overview How to Return Your Instrument for Service Chapter 1...
Page 43: Boot Up And Initialization Troubleshooting
Boot Up and Initialization Troubleshooting...
Page 44: What You Will Find In This Chapter
Boot Up and Initialization Troubleshooting What You Will Find in This Chapter 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 45: Check The Basics
Boot Up and Initialization Troubleshooting Check the Basics Check the Basics Before calling Agilent 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 46: Cxa Instrument Boot Up Process
CXA Instrument Boot Up Process CXA Instrument Boot Up Process This section describes the N9000A 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 minutes. This boot time will vary slightly depending on the analyzer hardware configuration, installed options and the number of measurement applications.
Page 47: Typical Instrument Boot-Up Process Flow
Boot Up and Initialization Troubleshooting CXA 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 48 Boot Up and Initialization Troubleshooting CXA Instrument Boot Up Process “Instrument Cannot Completely Load or Run the Operating System” section in this chapter. 9. By default, the initialization process of the CXA Spectrum Analyzer application begins loading. If any of the initializing processes do not complete, refer to the “Initializations Did Not Complete”...
Page 49: 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 CXA from completing a full boot up to the spectrum analyzer application.
Page 50 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process All DC power supplies come from the A5 Power Supply assembly. However, the NOTE most convenient measurement location for all the DC supplies is the A6 Midplane. All power supply LED's are accessible once the instrument cover has been removed.
Page 51: 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 A3 CPU board assembly. This signal is routed through the A6 Midplane board and is then buffered on the A7 Motherboard before being sent to the A1A2 Front Panel Interface board.
Page 52 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Figure 2-4 A7 Midplane Board - R867 A9, L.O. Board plugs into J21 A5, Power Supply plugs into J101 and J102 A3, CPU Assembly plugs into J201, J202, J203 and J204 5.
Page 53: 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 A5 Power Supply assembly. This signal is routed from the A5 Power Supply through the A6 Midplane board, where there is a test point and LED to monitor the level, and is then routed to the A7 Motherboard where it is filtered before being sent to the Fans.
Page 54 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Before replacing the power supply, verify the midplane and motherboard NOTE interconnects are mechanically secure. Figure 2-5 A6 Midplane Board - Fan LED A9, L.O. Board plugs into J21 A5, Power Supply plugs into J101 and J102 A3, CPU Assembly plugs into J201, J202, J203 and J204...
Page 55: No Agilent Splash Screen Displayed
Boot Up and Initialization Troubleshooting Potential Problems During Boot Process No Agilent Splash Screen Displayed (Black background with white “Agilent Technologies” text) A problem of not displaying the Agilent 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 56: Instrument Hangs At The Agilent Splash Screen
Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Instrument Hangs at the Agilent Splash Screen A problem of the instrument hanging at the Agilent 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 57: 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 58: 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 59 Boot Up and Initialization Troubleshooting Potential Problems During Boot Process 6. Referring to Figure 2-6, verify that the +12D VDC power supply is on. Figure 2-6 A6 Midplane Board +12D LED A9, L.O. Board plugs into J21 A5, Power Supply plugs into J101 and J102 A3, CPU Assembly plugs into J201, J202, J203 and J204...
Page 60 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 Voltage Brightness Control 0 to 3 VDC Inverter Enable >6 VDC Inverter Supply +12 VDC...
Page 61: Verify Video Signal Path Integrity
Boot Up and Initialization Troubleshooting Potential Problems During Boot Process 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. These interconnections are: •...
Page 62: Fails An Initial Alignment
Boot Up and Initialization Troubleshooting Potential Problems During Boot Process Fails an Initial Alignment While the application software is loading the instrument will perform a total of 10 internal alignments before the analyzer begins to sweep. The alignment numbers, descriptions and related hardware are described in the Table 2-2.
Page 63: Signal Level Verification
Boot Up and Initialization Troubleshooting Signal Level Verification Signal Level Verification Measure the 50 MHz RF calibrator signal level by pressing Input/Output . Now press . If the Calibrator 50 MHz Freq 50 MHz SPAN 1 MHz Peak Search analyzer is functioning correctly in low band, the 50 MHz calibrator level should be −25 dBm ±...
Page 64 Boot Up and Initialization Troubleshooting Signal Level Verification Chapter 2...
Page 65: Instrument Messages
Instrument Messages...
Page 66: Introduction
Instrument Messages Introduction Introduction The Error and Status messaging system of the Agilent Signal Analyzer reports events and conditions in a consistent fashion, as well as logging and reporting event history. Event vs. Condition Messages An Event is simply a message indicating that something has happened. Events are sub-divided according to their severity, into Error, Warning or Advisory categories.
Page 67: Event Message Format
Instrument Messages Introduction Warnings Warning messages appear when a requested operation has completed successfully, but there are modifications and/or side effects. (For example, if you requested too high a stop frequency, then “Data out of range” is displayed and the analyzer sets itself to the highest available stop frequency.) Some warnings are conditions rather than single events.
Page 68: Event Queues
Instrument Messages Introduction Standard 488.2-1992, IEEE Standard Codes, Formats, Protocols and Common Commands for Use with ANSI/IEEE Std 488.1-1987. New York, NY, 1992. Figure 3-1 Error Message Example Event Queues There are several different event queues that are viewed/queried and managed separately.
Page 69 Instrument Messages Introduction Table 3-1 Characteristics of the Event Queues Front-Panel Status Front-Panel History Remote Interfaces Characteristic (GPIB/LAN) Capacity (maximum number of messages) Circular (rotating). Circular (rotating). Linear, first-in/first-out. Overflow Handling Drops oldest error as Drops oldest error as Replaces newest error with: −350, Queue overflow new error comes in.
Page 70: 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 71 Instrument Messages Advisory Messages If Marker Function is off changing the band has no effect Band Adjust has no effect with Mkr Function Off Turning on any high-pass or low-pass filter will turn off Band-pass filter set to OFF band pass filters. User has cancelled the cal either directly or indirectly by Cal Cancelled;...
Page 72 Instrument Messages Advisory Messages The setup frequencies break the rules for a downconverter Fixed LO freq should be greater measurement. The measurement will still run, but check than RF Stop freq setup 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 73 Instrument Messages Advisory Messages The instrument’s input is set to internal (the internal Input is internal amplitude reference signal). So any signals connected to the front/rear panel inputs cannot be measured. The setup frequencies break the rules for an upconverter LO Fixed freq should be greater measurement.
Page 74 Instrument Messages Advisory Messages A probe has been connected, calibration data is being Probe connected, cal data is being reapplied reapplied; <port>; <probe> A probe has been connected and no probe calibration data is Probe connected, no probe cal; available. The latest cable calibration data will be used using cable cal data;...
Page 75 Instrument Messages Advisory Messages The setup frequencies break the rules for a downconverter RF Stop freq should be greater than measurement. The measurement will still run, but check IF Stop freq setup frequencies are correct before continuing. The RF Stop freq should be greater than the IF Stop freq’s for an USB or DSB (for DSB measurements the setup uses LSB values) downconverter fixed LO setup.
Page 76: 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 Operation complete in accordance with the IEEE 488.2, 12.5.2 synchronization protocol. Chapter 3...
Page 77: 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. Chapter 3...
Page 78: 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 User request local control. Chapter 3...
Page 79: 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 Power on supply. Chapter 3...
Page 80: -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 Query Error problem 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 81: -300 To -399, Device-Specific Errors
Instrument Messages -300 to -399, Device-Specific Errors -300 to -399, Device-Specific Errors Err# Message Verbose/Correction Information -300 An instrument error occurred and the exact problem cannot be Device-specific error specifically identified. Report this error to the nearest Agilent Technologies sales or service office. -310 An internal system-type error has occurred.
Page 82 Instrument Messages -300 to -399, Device-Specific Errors -310 The PTP driver failed on initialization. System error; The configured PTP hardware driver could not be instantiated. -310 Failure in the execution of the PTP driver. The most likely System error; The PTP cause of this error is a mismatch between versions of the PTP hardware driver reported driver and the LXI middleware.
Page 83 Instrument Messages -300 to -399, Device-Specific Errors -330 A self-test failure occurred. Report this error to the nearest Self-test failed Agilent Technologies sales or service office. -340 The instrument requires an Align All Now. Restore the Calibration failed alignment by pressing System, Alignments, Align All Now. -340 The calibration for the <I | I-bar | Q | Q-bar>...
Page 84: -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 Errorsfor the rest of those errors. The <subtext>...
Page 85 Instrument Messages -221 Settings Conflict Errors -221 The K, E, W, F, D, G, Y, J band functionality is not Settings conflict; Band is not available if the selected Mixer Type is Preselected. available when Mixer Type is Preselected -221 Base Transceiver Station gain correction is not available Settings conflict;...
Page 86 Instrument Messages -221 Settings Conflict Errors -221 When a correction with antenna units is turned on, that Settings conflict; Corrections is the only unit allowed. You can have two sets of with different antenna units antenna corrections turned on, but only if they have the not allowed same units.
Page 87 Instrument Messages -221 Settings Conflict Errors -221 The gated LO function turns the LO on and off as it Settings conflict; FFT sweep sweeps. So the FFT sweep type is not available if you type is not available while in have selected gated LO.
Page 88 Instrument Messages -221 Settings Conflict Errors -221 The FFT sweep type moves the LO frequency in steps. Settings conflict; Gated LO is So the gated LO function is not available if you have not available while Sweep Type selected FFT sweep. is set to FFT -221 The gated video function is not available if you have...
Page 89 Instrument Messages -221 Settings Conflict Errors -221 If a Marker is a Fixed type marker, the marker's value Settings conflict; Marker does not change from when it first became fixed. You Function is not available for cannot turn on or change a Marker Function because a Fixed marker there is no ongoing measurement data to use for the marker function calculation.
Page 90 Instrument Messages -221 Settings Conflict Errors -221 The normalization (correction) function cannot be used Settings conflict; Normalize if you are using the Demod View. is not available while Demod View is on -221 The Normalize function works by doing trace Settings conflict;...
Page 91 Instrument Messages -221 Settings Conflict Errors -221 Only the Log amplitude scale is available in Normalize, Settings conflict; Scale Type since the results are always presented as a dB ratio. = Lin is not available when Normalize is on -221 The current span setting is either narrower than the Settings conflict;...
Page 92 Instrument Messages -221 Settings Conflict Errors -221 The current measurement uses FFT mode and so does Settings conflict; Sweep Setup not use the Sweep Setup menu only available in swept measurements -221 The sweep time for FFT sweeps is set by the Settings conflict;...
Page 93 Instrument Messages -221 Settings Conflict Errors -221 The transmit band spur measurement does not support Settings conflict; Tx Band all of the commercially available frequency bands. You Spur meas does not support need to change your selection under Mode Setup, this frequency band.
Page 94: -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 95 Instrument Messages -200 to -299, Execution Errors -200 The Reference trace data must be stored in the Ref trace before Execution Error; Store ref you turn on the Normalization function. trace before turning on Normalize -200 NADC & PDC: In an EVM measurement, the sync word is not Execution error;...
Page 96 Instrument Messages -200 to -299, Execution Errors -220 A problem was found with a program data element. The exact Parameter error problem cannot be specifically identified. -221 There are many types of settings conflict errors. See section 3.5 Settings conflict; for information about these errors.
Page 97 Instrument Messages -200 to -299, Execution Errors -224 The value for the LXI LAN identifier parameter must be unique Illegal parameter value; (i.e. 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 Illegal parameter value;...
Page 98 Instrument Messages -200 to -299, Execution Errors -230 There is something wrong with the state data in the desired file. Data corrupt or stale; Maybe the file is corrupt, or it is from an instrument/version that Unable to load state from is not recognized by the current instrument.
Page 99 Instrument Messages -200 to -299, Execution Errors -250 Attempt to import Corrections file with Antenna Unit that differs Mass storage error; from an in-use correction. Different Antenna Unit already in use -250 The system cannot find the path specified. Mass storage error; Directory not found -250 The load trace operation could not be completed, as the input file...
Page 100 Instrument Messages -200 to -299, Execution Errors -250 The system cannot write to the specified device. Mass storage error; Write fault -252 A legal command or query could not be executed because Missing media missing media. -253 A removable media was found to be bad or incorrectly Corrupt media formatted.
Page 101 Instrument Messages -200 to -299, Execution Errors -275 Macro definition too long Indicates that a syntactically legal macro program data sequence could not be executed because the string or block contents were too long for the device to handle -276 Indicates that a syntactically legal macro program data sequence Macro recursion error could not be executed because the device found it to be recursive...
Page 102: -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 Command error cannot be 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...
Page 103 Instrument Messages -100 to -199, Command Errors -121 A character was found that is not valid for the data type. For Invalid character in example, an alpha in a decimal numeric or a “9” in octal data. number -123 The magnitude of an exponent was greater than 32000. Exponent too large -124 The mantissa of a decimal-numeric contained more than...
Page 104 Instrument Messages -100 to -199, Command Errors -178 A legal expression data was found, but it is not allowed at this Expression data not point in the parsing. allowed -180 A problem was found with a macro element. The exact Macro error problem cannot be specifically identified.
Page 105: Error
Instrument Messages 0 Error 0 Error Err# Message Verbose/Correction Information The queue is empty. Either every error in the queue has been No error read, or the queue was cleared by power-on or *CLS. Chapter 3...
Page 106: 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 107: 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 108: 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 109: 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 110: 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 111 Instrument Messages Condition Errors 101 to 199, Measurement Integrity A measurement was attempted or a SCPI query of an Insufficient Data; ENR table was made and there were no entries in the ENR table empty relevant ENR table (Common, Meas or Cal). A measurement was attempted with List frequency Insufficient Data;...
Page 112: 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 113 Instrument Messages Condition Errors 201 to 299, Signal Integrity GSM: Data was acquired but a GSM burst was not Burst Not Found (cont found, with the timeslot mode disabled. (cont.) NADC, PDC: A valid burst is not found when the Device is MS.
Page 114 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 115 Instrument Messages Condition Errors 201 to 299, Signal Integrity NADC & PDC: The valid EVM measurement cannot Signal Too Noisy be 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.
Page 116: 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 117 Instrument Messages Condition Errors 301 to 399, Uncalibrated Integrity The existing user cal has been invalidated because of one User Cal; Cal of the following reasons: invalidated 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 118 Instrument Messages Condition Errors 301 to 399, Uncalibrated Integrity No ENR Data (ENR) Calibration; No ENR data present unused bit6 is set unused bit7 is set unused bit8 is set unused bit9 is set unused bit10 is set unused bit11 is set unused bit12 is set unused bit13 is set unused bit14 is set...
Page 119: 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 120: 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 121: 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 122: 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 123: 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 124 Instrument Messages Condition Errors 801 to 899, Temperature Chapter 3...
Page 125: Rf Section Troubleshooting
RF Section Troubleshooting...
Page 126: What You Will Find In This Chapter
RF Section Troubleshooting What You Will Find in This Chapter What You Will Find in This Chapter The following information is found in this chapter: 1. Theory of operation of the RF section 2. Isolating the cause of an hardware problem by verifying the functionality of assemblies in the RF section signal path.
Page 127: Rf Assembly Description
RF Section Troubleshooting RF Assembly Description RF Assembly Description Purpose There are various optional frequency ranges that can be ordered with the N9000A, Signal Analyzer. • Option 503, 3.0 GHz Frequency Range • Option 507, 7.5 GHz Frequency Range The RF input signal can be routed through three different front end signal paths.
Page 128: Rf Section Theory Of Operation
RF Section Troubleshooting RF Section Theory of Operation RF Section Theory of Operation Input Attenuator The input attenuator has 50 dB of attenuation adjustable in 1 dB steps. The attenuator is built in two stages: A 20dB power stage and a 31dB x 1dB steps variable attenuator.
Page 129: 2Nd If Amplifier
RF Section Troubleshooting RF Section Theory of Operation IF Amplifier Provides IF gain and isolation between the second mixers and the 322.5MHz bandpass filter. IF Filter Provides image filtering (~25MHZ BW) when in wide-band demod mode, and protects downstream circuits from strong out-of-band signals. Step Attenuator A 1 dB step attenuator follows to compensate for band gain differences.
Page 130: Troubleshooting
RF Section Troubleshooting Troubleshooting Troubleshooting The N9000A has an internal 50 MHz amplitude reference signal that is used to verify the low band path. Refer to Chapter 10 , “Block Diagrams” for details. Equipment needed: Functioning Spectrum Analyzer Cables & Connectors...
Page 131: Verifying The 50 Mhz Calibrator Signal
RF Section Troubleshooting Troubleshooting Verifying the 50 MHz Calibrator Signal • Remove cable W9 from A8J337 RF Assembly(1) and measure the 50 MHz calibrator signal on the cable end with a functioning Spectrum Analyzer. Refer Figure 4-1. Figure 4-1 RF Assembly Cables Location •...
Page 132 RF Section Troubleshooting Troubleshooting Figure 4-2 50 MHz Calibrator Signal Chapter 4...
Page 133: Verifying The 22.5 Mhz If Signal
RF Section Troubleshooting Troubleshooting Verifying the 22.5 MHz IF Signal • Verify the input attenuator on the N9000A is set to 10 dB. Look near the top of the display near the center and verify that is visible. If needed...
Page 134: Verifying The 300 Mhz L.o. Input Power
RF Section Troubleshooting Troubleshooting Verifying the 300 MHz L.O. Input Power • Referring to Figure 4-1, carefully disconnect the W2 at A8J321. • Connect the W2 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 135: Digital If Troubleshooting
Digital IF Troubleshooting...
Page 136: What You Will Find In This Chapter
Digital IF Troubleshooting What You Will Find in This Chapter What You Will Find in This Chapter The following information is presented in this chapter: 1. Theory of operation of the Digital IF assembly. 2. Isolating the cause of a hardware problem by verifying the functionality of assemblies in the Digital IF assembly signal path.
Page 137: Digital I.f. Assembly Description
Digital IF Troubleshooting Digital I.F. Assembly Description Digital I.F. Assembly Description The A2 Digital I.F. has circuitry that is needed to analyze complex communication signals that can occupy up to 25 MHz of information bandwidth. It digitizes the final 22.5 MHz I.F. from the A8 RF Assembly, by processing the time domain continuous data into I/Q (in-phase and quadrature) signals before sending the data to the A3 CPU assembly for further processing and front panel display.
Page 138: A3 Digital I.f. Assembly Theory Of Operation
Digital IF Troubleshooting A3 Digital I.F. Assembly Theory of Operation A3 Digital I.F. Assembly Theory of Operation Refer to Chapter 10 , “Block Diagrams”. NOTE Data Acquisition The 22.5 MHz IF comes from the A8 RF assembly. The input level to the A3 Digital IF assembly is −25 dBm.
Page 139 Noise Source Voltage Regulator Various external noise sources can be connected to the rear panel of the N9000A Signal 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.
Page 140: A3 Digital I.f. Troubleshooting
. Verify the input attenuator on SPAN Zero Span the N9000A 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...
Page 141 Digital IF Troubleshooting A3 Digital I.F. Troubleshooting 9. Referring to Figure 5-1, carefully disconnect W4 at A3J15. Figure 5-1 A2 Digital I.F. Cables 10. Connect the W4 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 142: Verifying The 10 Mhz Reference Input
. Verify the input attenuator on SPAN Zero Span the N9000A 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...
Page 143 Digital IF Troubleshooting A3 Digital I.F. Troubleshooting 9. Referring to Figure 5-3, carefully disconnect W6 at A2J14. Figure 5-3 A2 Digital I.F. Cables 10. Connect the W6 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 144 Digital IF Troubleshooting A3 Digital I.F. Troubleshooting 12. The analyzer should read 10 MHz at +5 dBm ± 3 dBm as shown in Figure 5-4. Figure 5-4 A2 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 A2 Digital IF or the A3 CPU.
Page 145: Synthesizer/Reference Troubleshooting
L.O. Synthesizer/Reference Troubleshooting...
Page 146: What You Will Find In This Chapter
L.O. Synthesizer/Reference Troubleshooting What You Will Find in This Chapter What You Will Find in This Chapter The following information is found in this chapter: 1. Description of the L.O. assembly. 2. Isolating the cause of a hardware problem by verifying the functionality of assemblies in the L.O.
Page 147: A9 L.o. Assembly Description
L.O. Synthesizer/Reference Troubleshooting A9 L.O. Assembly Description A9 L.O. Assembly Description Purpose The A9 L.O. Assembly have both L.O. synthesizer circuit and reference circuit. The L.O. synthesizer circuit provides the 1 Local Oscillator to the A8 RF Assembly for RF conversion. The reference circuit provides various output signals that are used as both reference signals and local oscillators throughout the analyzer.
Page 148: A9 L.o. Assembly Troubleshooting
L.O. Synthesizer/Reference Troubleshooting A9 L.O. Assembly Troubleshooting A9 L.O. Assembly Troubleshooting Turn on the N9000A Signal Analyzer and wait for the instrument to complete the boot up process. Follow the below steps to verify the L.O. Assembly is functioning properly: •...
Page 149: Verifying The 1St L.o. Output Power
L.O. Synthesizer/Reference Troubleshooting A9 L.O. Assembly Troubleshooting Verifying the 1st L.O. Output Power: • Turn on the N9000A Signal Analyzer and wait for the instrument to complete the boot up process. • Press FREQ 50 MHz SPAN Zero Span • Disconnect W1 cable at J744 (see Figure 6-1).
Page 150: Verifying The Reference Signal
L.O. Synthesizer/Reference Troubleshooting A9 L.O. Assembly Troubleshooting Verifying the Reference Signal Verify the reference signals, local oscillator output frequencies, and power levels as per Table 6-2 using a functioning spectrum analyzer. In order to measure the signals, remove the rear panel. Refer to “Rear Panel”...
Page 151: Cpu/Disk Drive Troubleshooting
CPU/Disk Drive Troubleshooting...
Page 152: What You Will Find In This Chapter
CPU/Disk Drive Troubleshooting What You Will Find in This Chapter What You Will Find in This Chapter Each section first describes how the assembly works, then gives information to NOTE 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 153: A3 Cpu Description
CPU/Disk Drive Troubleshooting A3 CPU Description A3 CPU Description Disk Drive The A4 Disk Drive assembly is contained within the A3 CPU board assembly and is replaced as an individual assembly. Also, when the A3 CPU board assembly is replaced the existing A4 Disk Drive assembly will be used. Front Panel Interface The instrument USB bus is the electrical interface to the instrument front panel.
Page 154: System Memory
CPU/Disk Drive Troubleshooting A3 CPU Description • USB — 4 x Type-A ports (USB 2.0 compatible) — 1 x Type-B port (USB 2.0 compatible) CXA behaves like a USB device (client) • GPIB 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”.
Page 155: A4 Hard Disk Drive
CPU/Disk Drive Troubleshooting A4 Hard Disk Drive A4 Hard Disk Drive The CXA A4 Hard Disk Drive is physically connected to the CPU assembly. Failures of this disk drive can be either hardware or software related. The first step in trouble shooting is to determine if the failure is software related. If software is found not to be the issue, the hard disk drive should be replaced.
Page 156: Overview
CPU/Disk Drive Troubleshooting A4 Hard Disk Drive Overview The A4 Disk Drive assembly has been divided up into four different partitions. They are: This partition contains the operating system and software installed by Agilent. This is an open system which means you can install additional software, which should be installed on the C: drive.
Page 157: Troubleshooting Software Related Issues
CPU/Disk Drive Troubleshooting Troubleshooting software related issues Troubleshooting software related issues The C: drive contains the Windows XP operating software and the X-Series software. Boot problems can be caused by either a failure of the Windows XP operating system or the X-Series software. The failure could have occurred due to a failed installation procedure, X-Series software update failure or a virus.
Page 158: 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 159: Hard Drive Recovery Process
CPU/Disk Drive Troubleshooting Hard Drive Recovery Process Hard Drive Recovery Process The Agilent Recovery System can be used to repair software errors on the instrument's hard disk drive, or to restore the original factory configuration of the system software. The Agilent Recovery System is stored in a separate hidden hard disk drive partition.
Page 160: Using The Instrument Recovery System
CPU/Disk Drive Troubleshooting Hard Drive Recovery Process Using the Instrument Recovery System 1. Make sure the instrument is turned off. 2. Turn on the instrument. 3. After the “Agilent Technologies” screen is displayed the following screen contents will be displayed for 3 seconds. Please select the operating system to start: Microsoft Windows XP Professional Agilent Recovery System...
Page 161: Power Supply/Midplane Troubleshooting
Power Supply/Midplane Troubleshooting...
Page 162: What You Will Find In This Chapter
Power Supply/Midplane Troubleshooting What You Will Find in This Chapter What You Will Find in This Chapter The following information is found in this chapter: 1. Theory of operation of the power supply. 2. Isolating the cause of a power supply problem. 3.
Page 163: A5 Power Supply Description
Power Supply/Midplane Troubleshooting A5 Power Supply Description A5 Power Supply Description Purpose The A5 Power Supply assembly provides all the necessary DC voltages for the entire CXA 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 164: Power Supply Theory Of Operation
Power Supply/Midplane Troubleshooting A5 Power Supply Description Power Supply Theory of Operation The A5 Power Supply assembly is serviced as an assembly only; no component level repair is supported. The A5 Power Supply assembly provides most all of the necessary DC voltages for the CXA.
Page 165 Power Supply/Midplane Troubleshooting A5 Power Supply Description OFFn OFFn is an input that is to be used only as a “Panic Stop”. This signal can be used for such functions as an emergency over temperature shut down. This type of shut down is a last resort and does not perform the recommended operating system shut down of the instrument.
Page 166 Power Supply/Midplane Troubleshooting A5 Power Supply Description does not apply to the standby supplies, the fan voltage, and the +32V A supply. Thermal Protection The A5 Power Supply assembly will protect itself by shutting down if it overheats. It will also reset itself with no user interaction after the temperature is reduced by approximately 10 degrees C.
Page 167 Power Supply/Midplane Troubleshooting A5 Power Supply Description Table 8-1 Power Supply Output Signals Signal Name Description Maximum Test Load Output Current (Amps) (Amps) Fan_P Positive fan power supply. Fan_N Negative fan power supply. +12D 12 Volt Digital power supply. +5.1D 5.1 Volt Digital power supply.
Page 168: A5 Power Supply Basic Troubleshooting (Cover On)
Power Supply/Midplane Troubleshooting A5 Power Supply Basic Troubleshooting (Cover On) A5 Power Supply Basic Troubleshooting (Cover On) There are no user replaceable fuses on the power supply. If the internal fuse is NOTE 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 169: A6 Midplane Description
Power Supply/Midplane Troubleshooting A6 Midplane Description A6 Midplane Description Purpose The Midplane links the following major assemblies: • A3 CPU Assembly • A5 Power Supply Assembly • A7 Motherboard • A9 L.O. Assembly Refer to Figure 8-3. The Midplane Assembly (5) plugs into the Motherboard. The CPU, Power Supply, and L.O.
Page 170 Power Supply/Midplane Troubleshooting A6 Midplane Description Figure 8-3 Midplane Item Description A2 Digital I.F. Assembly A3 CPU Kit (less hard drive, includes battery) A5 Power Supply A9 L.O. Assembly A6 Midplane Assembly A8 RF Assembly The RF, and Digital IF plug into the Motherboard. All other assemblies mentioned NOTE plug into the Midplane from the rear of the instrument.
Page 171: A6 Midplane Assembly Troubleshooting
Power Supply/Midplane Troubleshooting A6 Midplane Assembly Troubleshooting A6 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.
Page 172 Power Supply/Midplane Troubleshooting A6 Midplane Assembly Troubleshooting Voltage readings are referenced to ACOM (TP4). All ohmmeter measurements NOTE were taken from the power supply test point to ACOM. Due to capacitive effects, wait for the ohmmeter readings to stabilize. Power Test Description Expected...
Page 173: Front Panel/Motherboard Troubleshooting
Front Panel/Motherboard Troubleshooting...
Page 174: What You Will Find In This Chapter
Front Panel/Motherboard Troubleshooting What You Will Find in This Chapter What You Will Find in This Chapter The following information is found in this chapter: 1. Theory of operation of the Motherboard Assembly. 2. Theory of operation of the Front Panel Assembly. 3.
Page 175: A7 Motherboard Description
Front Panel/Motherboard Troubleshooting A7 Motherboard Description A7 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 A6 Midplane and the Front Panel Assembly •...
Page 176: A7 Motherboard Troubleshooting
Front Panel/Motherboard Troubleshooting A7 Motherboard Description 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 177: 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, and the A1A5 Front Panel USB Interface Board, all of which are serviceable as individual components. The A1 assembly is used to display the measurement results, accept user input via the keyboard, and connect USB peripheral devices.
Page 178 Front Panel/Motherboard Troubleshooting A1 Front Panel Assembly Chapter 9...
Page 179: Block Diagrams
Block Diagrams...
Page 180: What You Will Find In This Chapter
Block Diagrams What You Will Find in This Chapter What You Will Find in This Chapter The following sections are found in this chapter: • RF block diagram ................page 182 • L.O. Synthensizer & Reference Block Diagram ....... page 183 •...
Page 181: Block Diagrams
Block Diagrams Block Diagrams Block Diagrams Chapter 10...
Page 182: Rf Block Diagram
Block Diagrams Block Diagrams RF Block Diagram Chapter 10...
Page 183: L.o. Synthesizer & Reference Block Diagram
Block Diagrams Block Diagrams L.O. Synthesizer & Reference Block Diagram Chapter 10...
Page 184: Digital I.f. Block Diagram
Block Diagrams Block Diagrams Digital I.F. Block Diagram Chapter 10...
Page 185: Cxa Computer Block Diagram
Block Diagrams Block Diagrams CXA Computer Block Diagram Chapter 10...
Page 186 Block Diagrams Block Diagrams Chapter 10...
Page 187: Service And Diagnostics Menus
Service and Diagnostics Menus...
Page 188: Overview
Service and Diagnostics Menus Overview 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 Agilent Service Center or at a self-maintaining customer site.
Page 189: Menus
Service and Diagnostics Menus Menus Menus Chapter 11...
Page 190 Service and Diagnostics Menus Menus Service Diagnostics Align Alignments Visible Align Diagnostics Subsystem Align Log... Subsystem Align Log Mode Clear Append Current System Gain Diagnostics Current IF (in System menu) Flatness Diagnostics Show Hardware Show Hardware Statistics Statistics screen Chapter 11...
Page 191 Service and Diagnostics Menus Menus Chapter 11...
Page 192: Service Key Descriptions
Service and Diagnostics Menus Service Key Descriptions Service Key Descriptions Service This menu key is only visible when the logged-in user is “advanceduser” The first access to the Service Menu after invoking the instrument application will require an authentication, which is to enter the Service Code. Subsequent accesses to the Service Menu are unimpeded.
Page 193: Timebase
Service and Diagnostics Menus 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 NOTE 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 194: 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. It also allows the technician the ability to measure the raw hardware performance when all corrections are set to Off.
Page 195 Service and Diagnostics Menus Service Key Descriptions IF Flatness This function turns the corrections related to IF flatness On or Off. When , the Advisory Event “IF Flatness corrections OFF” IF Flatness will be displayed. When , the Advisory Event “IF Flatness corrections OFF” IF Flatness will be cleared.
Page 196: 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 197: 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.
Page 198: Align
Service and Diagnostics Menus Service Key Descriptions Align The Align Menu allows accessing Diagnostic capabilities of Alignment, and invoking alignments for individual subsystems. Diagnostic The Diagnostic menu contains items for controlling the operating behavior of Alignment and the Alignment reporting capabilities. Visible Align Controls the state of Visible Align.
Page 199 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 200 Service and Diagnostics Menus Service Key Descriptions Align Current System Gain can be interrupted by pressing the Cancel (ESC) front-panel key. When this occurs, no new Current System Gain alignment data will be employed. Current IF Flatness Immediately executes an alignment of the Current IF Flatness, for the purpose of improving the absolute amplitude accuracy within FFT Sweeps and improving the group delay in some digital demodulation measurements.
Page 201: Replaceable Parts
Replaceable Parts...
Page 202: What You Will Find In This Chapter
Replaceable Parts What You Will Find in This Chapter What You Will Find in This Chapter The following information is found in this chapter: 1. Part number tables for assemblies, mechanical parts, cables, front panel connectors, and labels. 2. Part location diagrams for the following: Fig.
Page 203: How To Order Parts
Replaceable Parts What You Will Find in This Chapter How to Order Parts To order an assembly or mechanical part listed in this chapter, go to: www.parts.agilent.com If you do not have web access, or the parts you are interested in cannot be found in the parts list provided, contact your local Agilent Technologies sales and service office with the following information: •...
Page 204: 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 CXA Signal Analyzer. These options are described below. Table 12-1 All Replaceable Parts Reference Designator Description Part Number A1A1 N9020-60110...
Page 205 Replaceable Parts Replaceable Parts Table 12-1 All Replaceable Parts Reference Designator Description Part Number A1MP13 Inverter Board Shield W1312-00024 A1W1 Power Cable, Display to Front Panel Interface Board W1312-60010 A1W2 Power Cable, Front Panel Interface Board to Inverter Board W1312-60011 Digital I.F.
Page 206 Replaceable Parts Replaceable Parts Table 12-1 All Replaceable Parts Reference Designator Description Part Number MP27-34 Rivet, Fan Mounting (8 pieces) 0361-1272 MP35 Z-Bracket Power Supply to Chassis W1312-00016 MP36 O-ring, Type N (f) RF Input Connector 8160-1637 MP37 PC Board Plastic Guides (10 pieces) W1312-40001 MP38-41 Front Bumpers (Option PRC, Portable)
Page 207 Replaceable Parts Replaceable Parts Table 12-2 Attaching Hardware Attach Part Number Type Tool Torque Attenuators Chassis 2 per 0515-0372 M3 X 0.5 Torx T-10 9 inch-lbs (8 mm long) Bail Handle Front Frame 0515-0435 M4 X 0.7 Torx T-20 21 inch-lbs (14 mm long) Chassis Bottom Chassis Sides, Midplane...
Page 208 Replaceable Parts Replaceable Parts Table 12-2 Attaching Hardware Attach Part Number Type Tool Torque Power Supply 'Z' Power Supply 0515-1227 M3 X 0.5 Torx T-10 9 inch-lbs Bracket (8 mm long) Rear Bumper Feet (Opt. Rear Panel 0515-1619 M4 X 0.7 Torx T-20 21 inch-lbs.
Page 209: Hardware
Replaceable Parts Hardware Hardware Figure 12-1 Major Assemblies Item Description Agilent Part Number A2 Digital I.F. Assembly N9000-60400 A3 CPU Kit (less hard drive, includes battery) N9020-60031 A5 Power Supply 0950-4894 A9 L.O. Assembly N9000-60403 A6 Midplane Assembly E4410-60106 A8 RF Assembly N9000-60401 Chapter 12...
Page 210 Replaceable Parts Hardware Figure 12-2 External Hardware (Benchtop Configuration) Item Description Agilent Part Number 1, 2 MP21-22 Strap Handles (Benchtop Configuration) N9020-60002 (includes screws) Screw 0515-1619 M4 X 0.7 (25 mm long) MP17-20 Rear Feet (Benchtop Configuration) 5041-9611 MP16 Dress Cover (includes magnetic gasket) N9020-60020 Chapter 12...
Page 211 Replaceable Parts Hardware Figure 12-3 External Hardware and Bail Handle (Option PRC) Item Description Agilent Part Number Screw 0515-0435 M4 X 0.7 (14 mm long) MP46 Bail Handle (Option PRC, Portable) W1312-60036 Screw 0515-0435 M4 X 0.7 (14 mm long) MP38-41 Front Bumpers (Option PRC, Portable) W1312-40020 MP57-60 Strap Handle Plugs (Option PRC, Portable)
Page 212 Replaceable Parts Hardware Figure 12-4 External Hardware (Option PRC) Item Description Agilent Part Number Screw 0515-1619 M4 X 0.7 (25 mm long) MP42-45 Rear Bumpers (Option PRC, Portable) W1312-40021 (includes screws) MP16 Dress Cover (includes magnetic gasket) N9020-60020 Chapter 12...
Page 213 Replaceable Parts Hardware Figure 12-5 CPU Battery and Hard Drive Cable Item Description Agilent Part Number A3BT1 CPU Board Battery 1420-0356 Hard Disk Drive Ribbon Cable 8121-1611 Hard Disk Drive N9020-60066 Chapter 12...
Page 214 Replaceable Parts Hardware Figure 12-6 Top Brace and Reference Bracket 6 places 8 places Item Description Agilent Part Number MP7 Top Brace N9020-60018 MP61 Top Bracket N9000-00104 Screw M3 X 0.5 (8 mm long) 0515-0372 Screw M3 X 0.5 (6 mm long) 0515-1227 Screw M3 X 0.5 (8 mm long)
Page 215 Replaceable Parts Hardware Figure 12-7 RF Cables Item Description Agilent Part Number A8 RF Assembly N9000-60401 Cable Assembly, A9J744 to A8J350 N9000-20117 Cable Assembly, A9J746 to A8J321 N9000-20118 Cable Assembly, A2J15 to A8J320 N9000-20103 Cable Assembly, A8J336 to Aux IF Output N9000-20108 Cable Assembly, J1 (RF Input) to A8J329 N9000-20113...
Page 216 Replaceable Parts Hardware Figure 12-8 LO cables Item Description Agilent Part Number A9 L.O. Assembly N9000-60403 Cable Assembly, A9J744 to A8J350 N9000-20117 Cable Assembly, A9J746 to A8J321 N9000-20118 Cable Assembly, A9J753 to A8J333 N9000-20102 Cable Assembly, A9J751 to A2J14 N9000-20119 Cable Assembly, Ext.
Page 217 Replaceable Parts Hardware Figure 12-9 DIF Cables Item Description Agilent Part Number A2 Digital I.F. Assembly N9000-60400 Cable Assembly, A2J15 to A8J320 N9000-20103 Cable Assembly, A9J751 to A2J14 N9000-20119 Chapter 12...
Page 218 Replaceable Parts Hardware Figure 12-10 Chassis M P8 M P2 M P9 M P4 M P3 M P6 M P1 M P5 Item Description Agilent Part Number Chassis Base E4410-00102 Chassis Side, Right (inner) W1312-00046 Chassis Side, Left (inner) W1312-00047 Midplane Bracket W1312-00048 Chassis Front Bracket...
Page 219 Replaceable Parts Hardware Figure 12-11 Motherboard Item Description Agilent Part Number A7 Motherboard Assembly E4410-63100 Screw M3 X0.5 (8 mm long) 0515-0372 Chapter 12...
Page 220 Replaceable Parts Hardware Figure 12-12 Fan Hardware Item Description Agilent Part Number 3160-4199 3160-4199 MP25-26 Fan Guard 3160-4198 MP27-34 Rivet, Fan Mounting (8 pieces) 0361-1272 Chapter 12...
Page 221 Replaceable Parts Hardware Figure 12-13 Input Connector Item Description Agilent Part Number Screw M3 X 0.5 (8 mm long) 0515-0372 J1 Type-N (f) RF Input Connector Assembly 5002-0702 Cable Assembly, J1 (RF Input) to A8J329 N9000-20113 Chapter 12...
Page 222 Replaceable Parts Hardware Figure 12-14 Front Frame Parts Item Description Agilent Part Number A1A2 Front Panel Interface Board W1312-60042 A1A2MP1 Speaker 9164-0453 A1A2MP2 Speaker Foam W1312-40016 A1A3 Liquid Crystal Display 2090-0911 A1A4 Inverter Board (Display Backlight Power) 0950-4635 A1A5 Front Panel Daughter Board W1312-63121 A1MP8-11 Cable Clamp (Front Panel Cables) 1400-1439...
Page 223 Replaceable Parts Hardware Figure 12-15 Front Frame Exploded View Chapter 12...
Page 224 Replaceable Parts Hardware Item Description Agilent Part Number A1A1MP1 Front Frame W1312-20108 A1A1MP2 Main Keypad Overlay N9000-80101 A1A1MP3 Connector Overlay E4410-80109 A1A1MP7 Front Frame Top Trim Strip (Use with Option W1312-40004 PRC, Portable) (Illustrated) A1A1MP8 Front Frame Top Trim Strip (Use with W1312-40019 standard Bench analyzer) (Not Illustrated)
Page 225: Assembly Replacement Procedures
Assembly Replacement Procedures...
Page 226: What You Will Find In This Chapter
Assembly Replacement Procedures What You Will Find in This Chapter 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. Refer to Chapter 12 , “Replaceable Parts,” for part numbers, assembly descriptions, and ordering information.
Page 227: 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 228: Tools You Will Need
Assembly Replacement Procedures Tools you will need Tools you will need Figure 13-1 TORX Tool Description Agilent 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 229: Major Assembly Locations
Assembly Replacement Procedures Major Assembly Locations Major Assembly Locations Figure 13-2 Major Assemblies Item Description A2 Digital I.F. Assembly CPU Assembly A5 Power Supply A9 L.O. Assembly A6 Midplane Assembly A8 RF Assembly Chapter 13...
Page 230: 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 CAUTION sure to use a soft surface or soft cloth to avoid damage to the front panel, keys, or input connector.
Page 231 Assembly Replacement Procedures Instrument Outer Case Figure 13-3 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 232: Option Prc
Assembly Replacement Procedures Instrument Outer Case Option PRC Removal 1. Disconnect the instrument from ac power. Refer to Figure 13-4. 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 13-4 Bail Handle Removal 2.
Page 233 Assembly Replacement Procedures Instrument Outer Case 3. Refer to Figure 13-5. Using the T-20 driver, remove the four screws including washers (1) that hold the rear bumpers (2) in place. Figure 13-5 Option PRC Instrument Outer Case Removal 4. Pull the instrument cover (3) off towards the rear of the instrument. Chapter 13...
Page 234 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 235: 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 13-6. To remove the top brace (1), use the T-10 driver to remove the eight screws (3) (0515-0372) attaching the top brace to the chassis, the six screws (4) (0515-1227) attaching the top brace to the boards, and the four screws (4) attaching the top brace to the reference bracket.
Page 236: Rf Assembly
Assembly Replacement Procedures RF Assembly RF 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. Refer to Figure 13-7.
Page 237: Replacement
Assembly Replacement Procedures RF Assembly Replacement 1. Refer to Figure 13-7. Install the RF assembly into slot 5 in the chassis and press down to plug it into the motherboard. 2. Reattach the cables W1, W2, W4, W5, W8 and W9 to the RF assembly (1). 3.
Page 238: 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 13-8. Using the T-10 driver, remove the twenty screws (2) attaching the rear panel (1) to the chassis and to the reference bracket. The rear panel can now be removed.
Page 239: Assembly
Assembly Replacement Procedures L.O. Assembly L.O. Assembly Removal 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. Remove the rear panel. Refer to the Rear Panel removal procedure.
Page 240: Replacement
Assembly Replacement Procedures L.O. Assembly 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. Secure with the ejector. 2. Refer to Figure 13-9.
Page 241: 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 242: 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 13-10. Replace the three screws (1) through the power supply bracket (3) and into the power supply (2).
Page 243: Cpu Assembly
Assembly Replacement Procedures CPU Assembly CPU Assembly Removal 1. Refer to Figure 13-11. Remove the six screws (1) attaching the CPU assembly to the chassis. 2. The CPU assembly can be removed from the chassis by pulling straight out the back.
Page 244: Hard Disk Drive
Assembly Replacement Procedures Hard Disk Drive Hard Disk Drive Installation Procedure Electrostatic discharge (ESD) can damage or destroy electronic components. All CAUTION work on electronic assemblies should be performed at a static-safe workstation. Refer to the documentation that pertains to your instrument for information about static-safe workstations and ordering static-safe accessories.
Page 245 Assembly Replacement Procedures Hard Disk Drive In an effort to eliminate any further confusion for the end user, an additional label is included in this kit that must be affixed to the rear of the instrument, along with the Windows Vista license, to explain why the instrument has this Windows Vista license while running Windows XP.
Page 246 Assembly Replacement Procedures Hard Disk Drive 3. Refer to Figure 13-13. 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 13-13 Hard Drive Ribbon Cable Chapter 13...
Page 247 Assembly Replacement Procedures Hard Disk Drive 4. Refer to Figure 13-14. Uninstall the existing Hard Drive from the Top Shield by removing and discarding the 4 Loctited machine screws (1) from the CPU assembly. Screws need to be discarded because dried precoated screws can cause cross threading.
Page 248 Assembly Replacement Procedures Hard Disk Drive 8. Install the Programmed Hard Disk Drive to the Top Shield using precoated four Machine Screws (0515-5074) as shown in Figure 13-15. Torque screws to 9 inch-pounds. Figure 13-15 Top Shield/Hard Drive Assembly 9. Connect the Hard Drive ribbon cable from the Top Shield/Hard Drive/Ribbon Cable assembly to the CPU assembly.
Page 249: Powering On The Instrument
Assembly Replacement Procedures Hard Disk Drive 12. Locate the Windows XP License Sticker that came with the replacement hard drive and apply the sticker to the rear of the instrument as shown in Figure 13-16, covering the existing sticker if present. Figure 13-16 Windows License Sticker Rear Panel Location Powering On the Instrument...
Page 250 Assembly Replacement Procedures Hard Disk Drive Figure 13-17 Agilent Welcome Screen The License Agreement screen asks you to accept the terms of the End-User License Agreement for Windows XP. You must accept this agreement to continue the Windows XP installation and configuration. If you do not accept this agreement, the instrument shuts down and the next time you turn it on the Windows XP Setup Wizard starts from the beginning again.
Page 251: Setting System Date And Time
Assembly Replacement Procedures Hard Disk Drive Setting System Date and Time The Date and Time Settings screen is used to set the appropriate date, time and time zone. These settings will be configured later by the end user. 1. Press to finish this screen and continue the Windows XP Setup Wizard.
Page 252: Additional Tasks
Assembly Replacement Procedures Hard Disk Drive Additional Tasks 1. Make sure the instrument is turned off. 2. Turn on the instrument. 3. After the “Agilent Technologies” screen is displayed the following screen contents will be displayed for 3 seconds. Please select the operating system to start: Microsoft Windows XP Professional Agilent Recovery System Use the up and down arrow keys to move the highlight to your choice.
Page 253 Assembly Replacement Procedures Hard Disk Drive Figure 13-18 ULA Screen End of installation. For assistance, contact your nearest Agilent Technologies Sales and Service Office. To find your local Agilent office access the following URL, or if in the United States, call the following telephone number: http://www.agilent.com/find/assist 1-800-829-4444 (8 am - 8 pm ET, Monday - Friday) Chapter 13...
Page 254: Dif Assembly
Assembly Replacement Procedures DIF Assembly 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. 3. Refer to Figure 13-19. Remove cable W4 and W6 from the bottom of the DIF assembly.
Page 255: 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 256: Replacement
Assembly Replacement Procedures Midplane Assembly Figure 13-21 Midplane Assembly Removal Replacement 1. Refer to Figure 13-21. Install the midplane assembly into the chassis and attach to the midplane bracket using the six screws (2) removed earlier. Torque to 9 inch-pounds. 2.
Page 257: 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 258 Assembly Replacement Procedures Motherboard Assembly Figure 13-22 Midplane Bracket Removal Figure 13-23 Bottom Screws Chapter 13...
Page 259 Assembly Replacement Procedures Motherboard Assembly 13. Refer to Figure 13-24. Remove the left side chassis (same side as the fan) by removing the seven screws (four on the bottom). Figure 13-24 Chassis Side Removal Chapter 13...
Page 260: Replacement
Assembly Replacement Procedures Motherboard Assembly 14. Refer to Figure 13-25. Remove the motherboard (1) by removing the four screws (2). Figure 13-25 Motherboard Assembly Removal Replacement 1. Refer to Figure 13-25. Place the motherboard (1) into position in the chassis and replace the four screws (2).
Page 261 Assembly Replacement Procedures Motherboard Assembly 7. Replace the DIF assembly. Refer to the DIF Assembly replacement procedure. 8. Replace the power supply assembly. Refer to the Power Supply Assembly replacement procedure. 9. Replace the CPU assembly. Refer to the CPU Assembly replacement procedure.
Page 262: 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 263 Assembly Replacement Procedures Fan Assembly Replacing a Fan 1. Refer to Figure 13-27. 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 264: Replacement
Assembly Replacement Procedures Fan Assembly Replacement 1. Plug the fan wires into the motherboard. 2. Refer to Figure 13-26. 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 265: 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 13-28.
Page 266: Replacement
Assembly Replacement Procedures Input Connector Assembly Replacement 1. Refer to Figure 13-28. Place the Input Connector Assembly into position in the chassis. Replace the two screws (1) to attach the Input Connector Assembly to the chassis. Torque to 9 inch-pounds. 2.
Page 267: Front Frame Assembly
Assembly Replacement Procedures Front Frame Assembly Front Frame Assembly Removal Make sure any connectors on the front panel are removed. NOTE 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 NOTE the bail handle and bumpers from the front frame, refer to the “Bail Handle...
Page 268: Replacement
Assembly Replacement Procedures Front Frame Assembly Figure 13-30 Front Panel Cable Replacement 1. Reattach the ribbon cable W10. 2. Refer to Figure 13-29. Carefully position the Front Frame Assembly onto the chassis. Ensure no cables are crushed. Replace the eight screws (1), four on each side of the chassis.
Page 269: Bail Handle Removal (Option Prc)
Assembly Replacement Procedures Front Frame Assembly Bail Handle Removal (Option PRC) 1. Refer to Figure 13-31. 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 270: Front Frame Assembly Components
Assembly Replacement Procedures Front Frame Assembly Front Frame Assembly Components Access to any of the Front Frame assemblies requires removal of the Front Frame NOTE Assembly from the chassis. Figure 13-32 Front Frame Assembly Parts Locator Reference Item Description Designator A1A2 Front Panel Interface Board A1A2MP1...
Page 271 Assembly Replacement Procedures Front Frame Assembly Figure 13-33 Front Frame Assembly Exploded View Chapter 13...
Page 272 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 273 Assembly Replacement Procedures Front Frame Assembly Display Assembly Removal 1. Refer to Figure 13-32. Ribbon cable W10 (26) must be separated from the display by pulling up to separate the velcro that is used to adhere the cable to the bracket. 2.
Page 274 Assembly Replacement Procedures Front Frame Assembly 6. To remove the A1A4 LCD Backlight Inverter board (1), remove the two screws (3) securing the inverter board to the display bracket (5). 7. To remove the A1A3 LCD (4), flip the assembly over and remove the four screws securing the LCD to the display bracket (5).
Page 275 Assembly Replacement Procedures Front Frame Assembly Daughter Board, Interface Board and Keypad Removal 1. Refer to Figure 13-33. Remove the RPG knob (17) by carefully pulling it off. 2. Remove the display. Refer to the Display Assembly removal procedure. 3. Refer to Figure 13-32.
Page 276 Assembly Replacement Procedures Front Frame Assembly Chapter 13...
Page 277: Post-Repair Procedures
Post-Repair Procedures...
Page 278: What You Will Find In This Chapter
Post-Repair Procedures What You Will Find in This Chapter 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 279: Post-Repair Procedures
Post-Repair Procedures Post-Repair Procedures Post-Repair Procedures Table 14-1 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 280 Post-Repair Procedures Post-Repair Procedures Chapter 14...
Page 281 Post-Repair Procedures Post-Repair Procedures Chapter 14...
Page 282: Calibration File Backup
Post-Repair Procedures Post-Repair Procedures Calibration File Backup Backing up the calibration file before changing the A5 Disk Drive is highly recommended. To do this you will need to connect a USB mouse and follow the steps below. This is only available for XSA-Series Software version A.01.55 or greater.
Page 283: Bios Setup Changes
Post-Repair Procedures Post-Repair Procedures BIOS Setup Changes There are two settings in the CPU BIOS that must be verified and may require changing when the A3 CPU assembly or A4BT1 CPU battery is replaced. These settings need to be correct in order for the CXA Signal Analyzer to boot up and operate correctly.
Page 284 Post-Repair Procedures Post-Repair Procedures 4. Press “F2” on the external keyboard when at the Agilent Technologies splash screen to enter the CPU BIOS Setup Utility as shown in Figure 14-2. Figure 14-2 CPU BIOS Setup Utility Chapter 14...
Page 285 Post-Repair Procedures Post-Repair Procedures 5. Press the Right Arrow on the external keyboard twice to highlight the Boot tab as shown in Figure 14-3. Figure 14-3 Boot Tab Highlighted 6. If IDE 2 is not listed 1st in the boot priority, press the Down Arrow on the external keyboard to highlight IDE 2 as shown in Figure 14-3.
Page 286 Post-Repair Procedures Post-Repair Procedures 7. Press the “+” key on the external keyboard to bring IDE 2 to the top of the list as shown in Figure 14-4. Figure 14-4 IDE 2 at Top of List Chapter 14...
Page 287 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 14-5. Figure 14-5 Advanced Tab Highlighted 2. Press the Down Arrow on the external keyboard to highlight CK-408 Spread Spectrum 3.
Page 288 Post-Repair Procedures Post-Repair Procedures 5. Press the Enter key on the external keyboard to confirm the BIOS configuration changes as per Figure 14-6. Figure 14-6 Confirm BIOS Configuration 6. Perform the remaining adjustments and performance tests as per Table 14-1 the assembly that was changed.
Page 289: Functional Tests
Functional Tests...
Page 290: Functional Test Versus
Functional Tests Functional Test Versus Performance Verification 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. Measurement uncertainty analysis is not available for functional tests, and the analyzer is checked against limits that are wider than the published specifications.
Page 291: 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 292: 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 293 Functional Tests Test Equipment Analyzer Recommended Alternate Item Critical Specifications Option Agilent Model Agilent Model Signal Source Synthesized Sweeper Frequency: 10 MHz to 26.5 GHz 83630B, Harmonic level: < − 40 dBc 83640B, Amplitude range: 10 to − 20 dBm 83650B Frequency Accuracy: 0.02% Power Meter...
Page 294: 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 15-1 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 295 Functional Tests Displayed Average Noise Level (DANL) 4. Press Restart, then wait for Average/Hold to display 20/20 5. Press then press View/Display, Display, Display Line 6. Rotate the knob and set the display line at the average amplitude of the displayed noise floor by visual inspection.
Page 296: 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 2 Hz 0.5 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 297: Procedure
Functional Tests Frequency Readout Accuracy Procedure 1. Configure the equipment as shown in Figure 15-2. Confirm the analyzer’s built-in auto alignment has been performed within the past 24 hours. 2. On the synthesized sweeper, press , then set the controls as follows: PRESET , 1505, FREQUENCY...
Page 298: 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. A low pass filter is inserted between the source and the signal analyzer to prevent the source second harmonic from artificially raising the second harmonic product displayed on the analyzer.
Page 299: Procedure
Functional Tests Second Harmonic Distortion (SHD) Figure 15-3 Second Harmonic Distortion Test Setup Procedure 1. Configure the equipment as shown in Figure 15-3. 2. Press on the signal analyzer and Mode Spectrum Analyzer Mode Preset Preset the synthesized sweeper. 3. Set up the synthesized sweeper by pressing: , 40, Frequency , –10,...
Page 300: 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) should remain within ±1.3 dB of measured values. A synthesized sweeper is used as the signal source for the test.
Page 301: Procedure
Functional Tests Amplitude Accuracy at 50 MHz Figure 15-4 Amplitude Accuracy Test Setup Procedure 1. Zero and calibrate the power meter. 2. Configure equipment as shown in Figure 15-4, 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 302 Functional Tests Amplitude Accuracy at 50 MHz 7. Perform the following steps for each row listed in Table 15-4: a. Set the synthesized sweeper amplitude to the value listed in the Nominal Source Amplitude column in Table 15-4 b. Set the Mech Atten as indicated in the Attenuation column in Table 15-4 c.
Page 303: Testing Preamp Option (P03, P07)
Functional Tests Amplitude Accuracy at 50 MHz Testing Preamp Option (P03, P07) Instruments containing Options P03, P07 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 304: Frequency Response (Flatness)
Functional Tests Frequency Response (Flatness) Frequency Response (Flatness) Test Limits Frequency Range Limit Relative to 50 MHz 20 Hz to 3.0 GHz ±1.5 dB 3.0 GHz to 7.5 GHz ±2.5 dB The frequency response test measures the signal analyzer’s amplitude error as a function of the tuned frequency.
Page 305: Procedure
Functional Tests Frequency Response (Flatness) Figure 15-5 Frequency Response Test Setup Procedure 1. Zero and calibrate the power meter and power sensor as described in the power meter operation manual. 2. Configure the equipment as shown in Figure 15-5. Connect the power splitter to the signal analyzer input using the appropriate NOTE adapter.
Page 306 Functional Tests Frequency Response (Flatness) 8. On the signal analyzer, press Single 9. Press the key on the signal analyzer to position the marker on the Peak Search peak of the signal. 10. Refer to Table 15-6, “Frequency Response (Flatness) Results.” Enter the amplitude of the signal displayed on the signal analyzer into the Meas column of...
Page 307: 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 3.0 GHz ±2.0 dB 3.0 GHz to 7.5 GHz ±3.0 dB The frequency response test, with preamplifier on, measures the signal analyzer’s amplitude error as a function of the tuned frequency.
Page 308: Procedure
Functional Tests Frequency Response (Flatness), Preamp On Figure 15-6 Frequency Response Test Setup Procedure 1. Zero and calibrate the power meter and power sensor as described in the power meter operation manual. 2. Configure the equipment as shown in Figure 15-6.
Page 309 Functional Tests Frequency Response (Flatness), Preamp On 7. Adjust the synthesized sweeper output power for a power meter reading of –60 dBm ±0.1 dB. 8. On the signal analyzer, press Single 9. Press the key on the signal analyzer to position the marker on the Peak Search peak of the signal.
Page 310: 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 311: Procedure
Functional Tests Scale Fidelity Figure 15-7 Scale Fidelity Setup Averaging is used for all measurements to improve repeatability and reduce NOTE measurement uncertainty. Procedure 1. Configure the equipment as shown in Figure 15-7. 2. Preset the Source and press on the Mode Spectrum Analyzer Mode Preset...
Page 312 Functional Tests Scale Fidelity 7. On the analyzer, press the to trigger a 10 sweep average. Single Restart 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.
Page 313: Instrument Software
Instrument Software...
Page 314: What You Will Find In This Chapter
Instrument Software What You Will Find in This Chapter What You Will Find in This Chapter Instrument Software Overview ............page 315 Software Licensing ................page 316 Software Updates ..............page 317 Instrument Measurement Application Software ......page 317 89601 VSA Software ..............
Page 315: 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...
Page 316: 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). License keys are valid for one major revision. The software can be updated to any minor revision within the same major revision without the need of a new license.
Page 317: 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.agilent.com/find/xseries_software...
Page 318 Instrument Software Software Updates Chapter 16...
Page 319 Index RF front end A4 CPU assembly Sales and Service offices see A13 RF front end assembly description splash screen part number Align menu description removal alignment failure Numerics troubleshooting Alignments key 50 ohm load A4BT1 CPU board battery amplifiers 50 ohm/75 ohm minimum loss pad description amplitude accuracy test...
Page 320 Index date and time set preamp on instrument serial number daughter board front end control board instrument upgrade see A1A5 front panel daughter board see A15 front end control assembly internal alignments DC probes front frame inverter board use of description see A1A4 inverter board diagnostics menus...
Page 321 Index repairs storage device see post-repair procedures N7814A replace support URL see calibration application software see individual assemblies support web site replaceable parts required equipment operating system required test equipment test equipment problems adjustments adjustments options performance verification tests performance verification tests original instrument packing troubleshooting post-repair...
Page 322 Index Index-322...

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