Agilent Technologies FieldFox MW N9913A Service Manual
  1. Manuals
  2. Brands
  3. Agilent Technologies Manuals
  4. Measuring Instruments
  5. FieldFox MW N9913A
  6. Service manual
Agilent Technologies FieldFox MW N9913A Service Manual

Agilent Technologies FieldFox MW N9913A Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Agilent Technologies
FieldFox MW VNA/SA
Service Guide
This manual provides documentation for the following instruments:
FieldFox MW Analyzers - N9913A, N9914A, N9915A, N9916A, N9917A, N9918A
FieldFox MW VNA - N9925A, N9926A, N9927A, N9928A
FieldFox MW SA - N9935A, N9936A, N9937A, N9938A
Manufacturing Part Number: Part Number N9927-90003
Printed in USA
July 2014
Agilent Technologies, Inc. 2013 - 2014

Advertisement

Table of Contents
loading

Related Manuals for Agilent Technologies FieldFox MW N9913A

Summary of Contents for Agilent Technologies FieldFox MW N9913A

  • Page 1 FieldFox MW Analyzers - N9913A, N9914A, N9915A, N9916A, N9917A, N9918A FieldFox MW VNA - N9925A, N9926A, N9927A, N9928A FieldFox MW SA - N9935A, N9936A, N9937A, N9938A Manufacturing Part Number: Part Number N9927-90003 Printed in USA July 2014  Agilent Technologies, Inc. 2013 - 2014...
  • Page 2 (November 1995), as applicable in any technical data. Certification Agilent Technologies, Inc. certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies, Inc. further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute's calibration facility, and to the calibration facilities of other International Standards Organization members.
  • Page 3 Fieldfox Analyzer Assistance Product maintenance agreements and other customer assistance agreements are available for Agilent Technologies, Inc. products. For information about these agreements and for other assistance, contact Agilent. Refer to “Contacting Agilent” on page 2-9. Safety and Regulatory Information The safety and regulatory information pertaining to this product is located in Chapter 1 , “Safety and Regulatory Information.”...
  • Page 4 Fieldfox Analyzer The User’s Guide, included with the product, helps you to quickly familiarize yourself with the analyzer. Procedures are provided for preparing, configuring, and making measurements with the analyzer. The Quick Reference Guide, included with the product, is an abbreviated form of the User’s Guide containing some of the most commonly referred to information.

  • Page 5: Table Of Contents

    Contents 1 Safety and Regulatory Information Information in This Chapter ............1-2 Safety Symbols .
  • Page 6 Contents Troubleshooting Organization ............4-5 Power Up Troubleshooting.
  • Page 7 Contents Ordering Information ..............6-3 Assembly Replacement Procedure .
  • Page 8 Contents Contents-4 Service Guide?N9927-90003...

  • Page 9: Safety And Regulatory Information

    Safety and Regulatory Information N9927-90003...

  • Page 10: Information In This Chapter

    Safety and Regulatory Information FieldFox Analyzer Information in This Chapter Information in This Chapter This chapter provides safety information that will help protect you and your network analyzer. It also contains information that is required by various government regulatory agencies. Section Title Summary of Content Start Page...

  • Page 11: Safety Symbols

    FieldFox Analyzer Safety and Regulatory Information Safety Symbols Safety Symbols The following safety symbols are used throughout this manual. Familiarize yourself with each of the symbols and its meaning before operating this instrument. CAUTION Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, could result in damage to or destruction of the instrument.

  • Page 12: Before Applying Power

    Safety and Regulatory Information FieldFox Analyzer General Safety Considerations Before Applying Power WARNING If this product is not used as specified, the protection provided by the equipment could be impaired. This product must be used in a normal condition (in which all means for protection are intact) only.

  • Page 13: Electrostatic Discharge Protection

    FieldFox Analyzer Safety and Regulatory Information Electrostatic Discharge Protection Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the network analyzer. Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged.

  • Page 14: Regulatory Information

    Safety and Regulatory Information FieldFox Analyzer Regulatory Information Regulatory Information This section contains information that is required by various government regulatory agencies. Instrument Markings The instruction documentation symbol. The product is marked with this symbol when it is necessary for the user to refer to the instructions in the documentation. The CE mark is a registered trademark of the European Community.

  • Page 15: Battery Disposal

    If the either the primary power battery, or the RTC (real time clock) battery (on the A3 front panel interface board) needs to be disposed of, dispose of it in accordance with your country’s requirements. If required, you may return the battery to Agilent Technologies for disposal. Refer to “Contacting Agilent”...
  • Page 16 Safety and Regulatory Information FieldFox Analyzer Regulatory Information N9927-90003...

  • Page 17: General Product Information

    General Product Information N9927-90003...

  • Page 18: Information In This Chapter

    General Product Information FieldFox Analyzer Information in This Chapter Information in This Chapter Section Title Summary of Content Start Page Cleaning instructions for the external surfaces of your analyzer. Maintenance Page 2-2 Information about electrical maintenance of your analyzer. A list of the models available for the microwave Analyzer Models Page 2-3 network analyzers.

  • Page 19: Analyzer Models

    FieldFox Analyzer General Product Information Analyzer Models Analyzer Models Max Freq (GHz) N991x Combo N992x VNA N993x SA N9913A N9914A N9915A N9925A N9935A N9916A N9926A N9936A N9917A N9927A N9937A 26.5 N9918A N9928A N9938A N9927-90003...

  • Page 20: Analyzer Options

    General Product Information FieldFox Analyzer Analyzer Options Analyzer Options Below is a list of options that effect hardware for the FieldFox at the time of initial product release. Additional options will be added as product features are enhanced. Go to www.agilent.com/find/fieldfox2 for information on currently available upgrade options.

  • Page 21: Option Descriptions

    FieldFox Analyzer General Product Information Analyzer Options Option Descriptions Option 010, Vector Network Analyzer Time Domain With Option 010 or time domain, FieldFox computes the inverse Fourier transform of the frequency-domain data to display reflection or transmission coefficients versus time. Time domain gating can be used to remove unwanted responses such as connector mismatch or cable discontinuities, and the results can be displayed in either time or frequency domain.
  • Page 22 General Product Information FieldFox Analyzer Analyzer Options Option 211, Vector Network Analyzer Full 2-Port S Parameters For the N991x Combination models of FireFox, Option 211 provides transmission/reflection or S21 and S11 measurement capabilities, along with one-port and enhanced response calibrations. Additionally for the N991x Combination models and the N992x VNA models, Option 211 provides all four S-parameters - forward and reverse (S11, S21, S12, S22), and full 2-port calibration.
  • Page 23 FieldFox Analyzer General Product Information Analyzer Options Option 302, External USB Power Sensor Support Option 302 allows the use of an external USB controllable power sensor. All Agilent U2000x Series USB power sensors are supported with FieldFox. Visit: www.agilent.com/find/u2000 for an up-to-date listing. Option 305, Cable and Antenna Analyzer Option 305 provides fast and accurate diagnosis of cables, connectors, and antennas with DTF (dB, linear, VSWR), return loss and DTF, 1-port cable loss, 2-port insertion loss, and CalReady.

  • Page 24: Agilent Support, Services, And Assistance

    • “Shipping Your Analyzer to Agilent for Service or Repair” Service and Support Options The analyzer’s standard warranty is a one-year return to Agilent Technologies service warranty. NOTE There are other repair and calibration options available from Agilent Technologies. Contact Agilent for additional information on available service agreements for this product.

  • Page 25: Contacting Agilent

    Shipping Your Analyzer to Agilent for Service or Repair IMPORTANT Agilent Technologies reserves the right to reformat or replace the internal flash drive in your analyzer as part of its repair. This will erase all user information stored on the drive.
  • Page 26 General Product Information FieldFox Analyzer Agilent Support, Services, and Assistance 2-10 N9927-90003...

  • Page 27: Tests And Adjustments

    Tests and Adjustments N9927-90003...

  • Page 28: Information In This Chapter

    Tests and Adjustments FieldFox Analyzer Information in This Chapter Information in This Chapter This chapter contains procedures to help you check, verify, and adjust your FieldFox analyzer. • The checks verify the operation of the assemblies in your analyzer. • The adjustments allow you to tune your analyzer for maximum response. NOTE The Agilent N7841A software package is required to test and adjust your analyzer.

  • Page 29: Before You Begin

    FieldFox Analyzer Tests and Adjustments Before You Begin Before You Begin Before checking, verifying, or adjusting the analyzer, refer to the following paragraphs to: • Make sure the operating environment is within 19 to 27 °C and 5 to 95% humidity. •...

  • Page 30: Review The Principles Of Connector Care

    Prior to making connections to your analyzer, carefully review the information about inspecting, cleaning, and gaging connectors. Refer to the calibration kit documentation for detailed connector care information. For course numbers about additional connector care instruction, contact Agilent Technologies. Refer to “Contacting Agilent” on page 2-9.

  • Page 31: Service Test Equipment

    FieldFox Analyzer Tests and Adjustments Service Test Equipment Service Test Equipment The test equipment required for the TME based N7841A test and adjustment software is listed in the N7841A help file. The following additional test equipment is recommended when servicing the FieldFox analyzer: •...

  • Page 32: Before Returning An Instrument To A Customer

    Tests and Adjustments FieldFox Analyzer Before Returning an Instrument to a Customer Before Returning an Instrument to a Customer When finished servicing an FieldFox analyzer, perform the following before returning the unit to the customer: • Set the Display Colors to Indoor and the display Brightness to 80% via System (7) >...

  • Page 33: Operational Check

    FieldFox Analyzer Tests and Adjustments Operational Check Operational Check This operational check exercises only very basic measurement functionality. Required Equipment A short compatible with the port connector type on the FieldFox. A load compatible with the port connector type on the FieldFox. (Both are typically available in a compatible cal kit.) Procedure 1.
  • Page 34 Tests and Adjustments FieldFox Analyzer Operational Check 5. Press . If SA is available then continue below, otherwise the operational check is complete. Mode • For this step Port 2 should be unconnected or connected to a short or load. •...

  • Page 35: Performance Tests (Agilent N7841A Software Package)

    FieldFox Analyzer Tests and Adjustments Performance Tests (Agilent N7841A Software Package) Performance Tests (Agilent N7841A Software Package) The performance tests section of the Agilent N7841A software package verifies the electrical performance of your FieldFox analyzer. The software automatically configures your analyzer to execute the performance tests.

  • Page 36: Adjustments (Agilent N7841A Software Package)

    Tests and Adjustments FieldFox Analyzer Adjustments (Agilent N7841A Software Package) Adjustments (Agilent N7841A Software Package) The adjustments section of the Agilent N7841A software package may be used to fine-tune your analyzer. The N7841A software package is not included with the analyzer; it must be ordered separately. It can be downloaded from the Internet and a license purchased on-line, or it can be ordered on a CD-ROM.

  • Page 37: Troubleshooting

    Troubleshooting N9927-90003...

  • Page 38: Information In This Chapter

    Troubleshooting FieldFox Analyzer Information in This Chapter Information in This Chapter The information in this chapter helps you: • Identify the portion of the analyzer at fault. • Locate the specific troubleshooting procedure to identify the assembly or peripheral at fault. The sections in this chapter are arranged in a logical troubleshooting order.

  • Page 39: Protect Against Electrostatic Discharge (Esd)

    FieldFox Analyzer Troubleshooting Protect Against Electrostatic Discharge (ESD) Protect Against Electrostatic Discharge (ESD) This is important. If not properly protected against, electrostatic discharge can seriously damage your analyzer, resulting in costly repair. CAUTION To reduce the chance of electrostatic discharge, follow all of the recommendations outlined in “Electrostatic Discharge Protection”...

  • Page 40: Getting Started With Troubleshooting

    Check the Basics A problem can often be solved by repeating the procedure you were following when the problem occurred. Before calling Agilent Technologies or returning the instrument for service, please perform the following checks: 1. Does the analyzer have power available? It is recommended that the battery is installed and the AC power adapter is also connected.

  • Page 41: Troubleshooting Organization

    FieldFox Analyzer Troubleshooting Getting Started with Troubleshooting Troubleshooting Organization Follow the flowgraph in Figure 4-1 to help direct you to the correct section for troubleshooting the analyzer. Figure 4-1 Troubleshooting Organization Flowchart Go to “Power Up Troubleshooting” on page 4-6 Go to “Front Panel Group Go to...

  • Page 42: Power Up Troubleshooting

    Troubleshooting FieldFox Analyzer Power Up Troubleshooting Power Up Troubleshooting If the display is operational but the unit does not boot up successfully: • Make sure there is sufficient power for the unit to operate. • Try re-installing firmware using the firmware upgrade process described in Chapter •...

  • Page 43: Front Panel Group Troubleshooting

    FieldFox Analyzer Troubleshooting Front Panel Group Troubleshooting Front Panel Group Troubleshooting Checking Display Brightness and Sound If the display is dark (no backlight) • Press System • Select Preferences • Select Preferences • Use the arrow keys to select , press , then use the arrow keys to change the display Brightness Edit...

  • Page 44: Usb And Sd Card Slot Ports

    Troubleshooting FieldFox Analyzer Front Panel Group Troubleshooting USB and SD Card Slot Ports To verify proper operation of any rear USB ports or SD Card port: • Connect a known good USB flash memory or SD memory card. • Wait 15 seconds for the analyzer to verify the device connection, and then check the operation of the USB flash memory or SD memory card by performing the recall function Save/Recall •...

  • Page 45: Measurement Group Troubleshooting

    FieldFox Analyzer Troubleshooting Measurement Group Troubleshooting Measurement Group Troubleshooting • Make sure the unit is warmed up for at least 30 minutes. • Make sure the correct cal kit definition is being used; erase user data to force use of factory cal kit definitions (see Chapter 8 for information on the...
  • Page 46 Troubleshooting FieldFox Analyzer Measurement Group Troubleshooting Figure 4-2. Typical Four Channel Display • If all traces are present and are similar to the traces in Figure 4-2., then there are no major problems with the analyzer's VNA measurement system. There may, however, be a minor failure in the analyzer.

  • Page 47: Problems In Sa Mode

    FieldFox Analyzer Troubleshooting Measurement Group Troubleshooting Problems in SA Mode The instruments unique signal analyzer blocks that are located on the A4, RF Board can be verified using a signal source and a functioning spectrum analyzer capable of measuring a 33.75 MHz signal. Verifying the 33.75 MHz I.F.
  • Page 48 Troubleshooting FieldFox Analyzer Measurement Group Troubleshooting Inject that 1 GHz CW signal into the Port 2 SA RF Input connector on the instrument as illustrated in Figure 4-4. From an instrument preset, tune the instrument to 1 GHz, 0 Span. Verify that the input attenuator (Atten) is set to 10 dB.
  • Page 49 FieldFox Analyzer Troubleshooting Measurement Group Troubleshooting NOTE The 1 GHz test signal was set to 0 dBm. The input attenuator on the analyzer was set to 10 dB. If the A4 R.F. Board had 0 dB of conversion loss, the 33.75 MHz I.F. output would measure -10 dBm, but it measured -16 dBm because the A4, R.F.
  • Page 50 Troubleshooting FieldFox Analyzer Measurement Group Troubleshooting 4-14 N9927-90003...

  • Page 51: Theory Of Operation

    Theory of Operation N9927-90003...

  • Page 52: Information In This Chapter

    Theory of Operation FieldFox Analyzer Information in This Chapter Information in This Chapter This chapter provides a general description of the operating theory of the FieldFox analyzer. • Theory of operation is explained to the assembly level only. • Component-level circuit theory is not provided. •...

  • Page 53: Analyzer System Operation

    FieldFox Analyzer Theory of Operation Analyzer System Operation Analyzer System Operation The FieldFox analyzer is capable of both network analyzer (NA) and spectrum analyzer (SA) functions. • Full two port NA functions are supported by the hardware. Model and option combinations determine available functionality. •...
  • Page 54 Theory of Operation FieldFox Analyzer Analyzer System Operation Figure 5-1 Overall Block Diagram N9927-90003...

  • Page 55: Front Panel Group

    FieldFox Analyzer Theory of Operation Front Panel Group Front Panel Group The front panel group consists of the following assemblies: • A3 Front Panel Interface Board • A2 LCD Assembly Refer to Figure 5-1 for a simplified overall block diagram which includes the front panel group. A3 Front Panel Interface Board The main function of the A3 Front Panel Interface board is to support the user interface but it also contains the digital power supplies.

  • Page 56: A2 Lcd Assembly

    Theory of Operation FieldFox Analyzer Front Panel Group A2 LCD Assembly The A2 LCD assembly contains a 6.5-inch, 640 x 480 TFT color LCD with associated drive circuitry and backlight inverter. The LCD backlight is created by LED’s connected in parallel stacks. Backlight brightness is a function of the backlight power that ranges from 22 to 27 volts.

  • Page 57: Measurement Group

    FieldFox Analyzer Theory of Operation Measurement Group Measurement Group The measurement group produces a stable output signal by phase locking a synthesized voltage-controlled oscillator (VCO). The measurement group consists of the: • A4 RF Board • A5 System Board • A6 SOM Board •...
  • Page 58 Theory of Operation FieldFox Analyzer Measurement Group Figure 5-2. Simplified RF Block Diagram N9927-90003...
  • Page 59 FieldFox Analyzer Theory of Operation Measurement Group NA RF Section An LO synthesizer produces a single LO signal from the 90 MHz time base located on the A5 System board. The LO output is delivered to the NA mixers of both ports. The LO frequency is always above the measured frequency.
  • Page 60 Theory of Operation FieldFox Analyzer Measurement Group The RF Out attenuator between the source and the reflectometer has three settings: nominal values of 0 dB, 35 dB or user input value. The setting is determined by the High, Low or Manual power setting on the user interface.
  • Page 61 FieldFox Analyzer Theory of Operation Measurement Group SA RF Section An external RF input signal can be analyzed when connected to the Port 2 SA RF Input connector. Before the input signal is mixed, the signal will go through the input attenuator and optional internal preamplifier.
  • Page 62 Theory of Operation FieldFox Analyzer Measurement Group Power Management Circuitry The circuitry on the A4 RF board has five special sections that may be powered down for the purpose of power management. These sections may be selectively powered down (via “load switching”) when not required for the current operating mode of the analyzer.

  • Page 63: A5 System Board

    FieldFox Analyzer Theory of Operation Measurement Group A5 System Board The A5 System board controls all of the functions of the analyzer and digitizes the RF IF signals (NA-R, NA-A, NA-B, and SA IF) from the A4 RF board. The A6 SOM (System on Module) board is mounted directly on the A5 System board. All external connections for the analyzer come through the A5 system board except for the PORT 2 and PORT 1 ports.
  • Page 64 Theory of Operation FieldFox Analyzer Measurement Group Figure 5-3 Simplified System Board Block Diagram 5-14 N9927-90003...
  • Page 65 FieldFox Analyzer Theory of Operation Measurement Group System Monitor (SM) Microcontroller This is the heart of the analyzer. It is active whenever there is DC power available. The microcontroller has ultra-low power dissipation. It is sometimes referred to as the “MSP 430”. The following is a list of some of the functions performed by the SM.
  • Page 66 Theory of Operation FieldFox Analyzer Measurement Group Time Base The Time Base is an internal TCXO that produces 90 MHz signals for use throughout the analyzer. A 10 MHz signal at the Ref In/Trig input may be used to provide an external time base. The external time base function is controlled via the user interface.

  • Page 67: A6 Som Board

    FieldFox Analyzer Theory of Operation Measurement Group A6 SOM Board The A6 SOM (System on Module) board plugs directly into the A5 System board as a daughter board and contains: • the CPU, • 64 MB of flash ROM, • 128 MB of RAM •...

  • Page 68: Grounding And Power

    Theory of Operation FieldFox Analyzer Grounding and Power Grounding and Power Grounding Each printed circuit board has a single ground plane. The ground planes on the A4 RF board and A5 System board are connected via the common shields at multiple points. The ground plane on the A3 Front Panel Interface board is connected to the ground plane on the A5 System board.

  • Page 69: Power Control And Management

    FieldFox Analyzer Theory of Operation Grounding and Power Power Control and Management Power States The On/Off Button is used to switch between On, Off, and Standby power states: Off Only the System Monitor and battery control circuits are powered up (if power is available from the battery or external power).

  • Page 70: Battery Related Information

    Theory of Operation FieldFox Analyzer Grounding and Power Battery Related Information Battery Description and Operation The main battery is an SBS (Smart Battery System) compliant pack of lithium ion cells. Refer to “Battery Disposal” on page 1-7 for important information about replacing and disposing of this battery.
  • Page 71 FieldFox Analyzer Theory of Operation Grounding and Power Battery Charging Management The battery pack determines when the battery needs charging and requests a charge over the Smart Batt Bus. The Battery Charger and Manager circuit on the A5 System board responds by charging the battery if there is sufficient voltage on the Ext DC line.

  • Page 72: Operation In Modes

    Theory of Operation FieldFox Analyzer Operation in Modes Operation in Modes The FieldFox User’s Guide describes the various modes of operation and describes the user interface for each mode. The following information describes how the hardware is used in the various modes to make measurements.
  • Page 73 FieldFox Analyzer Theory of Operation Operation in Modes Response Mechanical QuickCal Cal OFF ON View Cal CAT or NA Cal Standard Option 112 Standard Standard Standard 1-Port Cable 2-Port Trimming Transmission Measure Option 308 & Option 308 Option 308 & Option 308 &...

  • Page 74: Cat, Na, And Vvm Modes

    Theory of Operation FieldFox Analyzer Operation in Modes CAT, NA, and VVM Modes CAT, NA, and VVM modes have some similar capabilities but are still separate operating modes. Measurement similarities: • Return Loss = S11 magnitude • Insertion Loss = S21 magnitude Unlike S11 and S21, the values displayed below zero for Return Loss and Insertion Loss are not negative.

  • Page 75: Power Meter Mode

    FieldFox Analyzer Theory of Operation Temperature Related Information Power Meter Mode All measurement circuitry is switched to the low power state during PM (power meter) mode. This is the mode with the lowest power dissipation. The analyzer has no power output capability in this mode. The analyzer essentially functions as a display for a USB power sensor.

  • Page 76: User Calibration In Cat, Na, And Vvm Modes

    Theory of Operation FieldFox Analyzer User Calibration in CAT, NA, and VVM Modes User Calibration in CAT, NA, and VVM Modes There are three types of calibrations for the CAT, NA and VVM modes: CalReady, QuickCal and Mechanical Cal. See the FieldFox Analyzer User's Guide (Part Number N9927-90001) "Calibration for CAT, NA and VVM Modes"...

  • Page 77: Mechanical Calibration

    FieldFox Analyzer Theory of Operation User Calibration in CAT, NA, and VVM Modes Mechanical Calibration Mechanical Calibration is performed using discrete standards from a Cal Kit. Several Cal Kit definitions are built into the FieldFox. Mechanical Cals are extremely accurate when performed using the correct Cal Kits with standards that are clean and in good repair, and when using correct connection procedures.

  • Page 78: Firmware Related Information

    Theory of Operation FieldFox Analyzer Firmware Related Information Firmware Related Information General Description The analyzer is based on the Windows CE operating system. This is a closed system; no direct user access to the desktop of general operating system functions is provided. The file system for Windows CE is maintained in flash memory on the A6 SOM board.

  • Page 79: Error Log

    FieldFox Analyzer Theory of Operation Firmware Related Information Error Log Chapter 8 for instructions on viewing the error log. The error log is cleared each time the analyzer is powered off. Generally, an entry in the error log is created whenever an error message is displayed. EXAMPLE: Attempting to set the frequency to a value of “.”...

  • Page 80: Lan Interface

    Theory of Operation FieldFox Analyzer LAN Interface LAN Interface See the “System Configuration” section of the FieldFox Analyzer User’s Guide (Part Number N9927-90001) for details on reviewing and configuring LAN settings. The LAN interface supports Auto MDIX. When a LAN cable is connected to the FieldFox, if the other end of the cable supports Auto MDIX, there is no need for a cross-over cable.

  • Page 81: Replaceable Parts

    Replaceable Parts N9927-90003...

  • Page 82: Information In This Chapter

    Replaceable Parts FieldFox Analyzer Information in This Chapter Information in This Chapter This chapter: • identifies the replaceable parts for the FieldFox analyzer. • includes several tables and illustrations to assist you in identifying the correct part for your analyzer. •...

  • Page 83: Ordering Information

    To order a part listed in the replaceable parts lists: • include the part number • indicate the quantity required • Contact Agilent Technologies for instructions on where to send the order. Refer to “Contacting Agilent” on page 2-9. To order a part that is not listed in the replaceable parts lists: •...

  • Page 84: Assembly Replacement Procedure

    Replaceable Parts FieldFox Analyzer Assembly Replacement Procedure Assembly Replacement Procedure The following steps describe how to replace an assembly in the analyzer. Step 1. Identify the faulty group. Begin with Chapter 4 , “Troubleshooting.” Follow up with the appropriate troubleshooting chapter that identifies the faulty assembly. Step 2.

  • Page 85: Replaceable Parts Listings

    FieldFox Analyzer Replaceable Parts Replaceable Parts Listings Replaceable Parts Listings Entire Analyzer Figure 6-1 Entire Analyzer, Exploded View Descriptions and part numbers for the assemblies and parts in each group shown in the above illustration can be found at the following locations: •...

  • Page 86: Front Panel Group

    Replaceable Parts FieldFox Analyzer Replaceable Parts Listings Front Panel Group Reference Designator Part Number Description Replacement Assemblies A3 Front Front Panel Board Assembly—Includes: Panel Board N9927-60110 A3 front panel interface board Assembly Separately Replaceable Individual Parts and Assemblies N9912-40001 Keypad assembly N9927-60118 LCD assembly, 6.5-inch TFT VGA N9927-60007...
  • Page 87 FieldFox Analyzer Replaceable Parts Replaceable Parts Listings Figure 6-2 Front Panel Group, Exploded View N9927-90003...

  • Page 88: Measurement Group

    Replaceable Parts FieldFox Analyzer Replaceable Parts Listings Measurement Group NOTE Each time the FieldFox case is opened for any reason, you must order a Repair and Re-assembly Kit. See “Miscellaneous Parts” on page 6-13. Reference Designator Part Number Qty Description Replacement Assemblies N9927-60111 N9918A...
  • Page 89 FieldFox Analyzer Replaceable Parts Replaceable Parts Listings Reference Designator Part Number Qty Description Screw, machine, flat head, Torx T10, M3.0 x 0.5, 8 mm (10) 0515-1035 (used for 3.5 mm connectors) (11) N9912-20033 Insulator, w/pad (12) N9927-20064 EMI ring (14) 0515-1946 Screw, machine flat head, Torx T10, M3.0 x 0.5, 6 mm (15)
  • Page 90 Replaceable Parts FieldFox Analyzer Replaceable Parts Listings Figure 6-3 Measurement Group, Exploded View 6-10 N9927-90003...

  • Page 91: Case Group

    FieldFox Analyzer Replaceable Parts Replaceable Parts Listings Case Group Reference Designator Part Number Description Replacement Assemblies Front Enclosure Assembly—Includes: (2) Front case, W1312-40049, with A1 keypad installed N9927-60116 (3) LCD lens filter (4) Keypad overlay, N9912-80005 Left Side I/O Panel Assembly—Includes: N9927-60119 Speaker Right Side I/O Panel Assembly -- Includes:...
  • Page 92 Replaceable Parts FieldFox Analyzer Replaceable Parts Listings Reference Designator Part Number Description (13) Screw, machine w/patch lock, pan head, Torx T8, M2.5x0.45, 6 mm 0515-1940 (14) 3110-0654 Friction hinge N9912-00003 Spacer (16) W1312-40068 Hinge cover (17) Screw, machine, button head, Torx T8, M3.0 x 8 mm 0515-2217 (18) N9927-60006...

  • Page 93: Miscellaneous Parts

    FieldFox Analyzer Replaceable Parts Replaceable Parts Listings Miscellaneous Parts Table 6-1 Part Numbers for Miscellaneous Parts and Accessories Model or Part Description Number Repair and Re-assembly Kit IMPORTANT This kit is required each time the FieldFox case is opened for any reason. The kit includes the following items, some or all of which are necessary to re-assemble the internal assemblies and the case, depending upon the depth of the repair.
  • Page 94 Replaceable Parts FieldFox Analyzer Replaceable Parts Listings Table 6-1 Part Numbers for Miscellaneous Parts and Accessories (Continued) Model or Part Description Number ESD Supplies Adjustable antistatic wrist strap 9300-1367 Antistatic wrist strap grounding cord (5 foot length) 9300-0980 Static control table mat and earth ground wire 9300-0797 ESD heel strap 9300-1126...

  • Page 95: Repair And Replacement Procedures

    Repair and Replacement Procedures N9927-90003...

  • Page 96: Information In This Chapter

    Repair and Replacement Procedures FieldFox Analyzer Information in This Chapter Information in This Chapter This chapter contains procedures for removing and replacing the major assemblies of your Agilent Technologies FieldFox analyzer. Section Title Summary of Content Start Page Personal Safety Warnings Warnings and cautions pertaining to personal safety.

  • Page 97: Personal Safety Warnings

    FieldFox Analyzer Repair and Replacement Procedures Personal Safety Warnings Personal Safety Warnings WARNING These servicing instructions are for use by qualified personnel only. To avoid electrical shock, do not perform any servicing unless you are qualified to do so. WARNING Danger of explosion if battery is incorrectly replaced.

  • Page 98: Assembly Replacement Sequence

    Repair and Replacement Procedures FieldFox Analyzer Assembly Replacement Sequence Assembly Replacement Sequence The following steps show the sequence that you should follow to replace an assembly in the FieldFox analyzer. Step 1. Identify the faulty group. Begin with Chapter 4 , “Troubleshooting.” Step 2.

  • Page 99: Removal And Replacement Procedures

    FieldFox Analyzer Repair and Replacement Procedures Removal and Replacement Procedures Removal and Replacement Procedures Table 7-1 List of Procedures Reference Designator or Name Assembly Description Location Main battery Primary power battery Page 7-6 Case parts All enclosure case parts Page 7-8 Keypad Page 7-17 RPG (part of front panel group)

  • Page 100: Removing And Replacing The Main Battery

    Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Main Battery Removing and Replacing the Main Battery Tools Required • None IMPORTANT Refer to “Battery Disposal” on page 1-7 for important instructions on disposing of the old battery. Replacing the Main Battery 1.
  • Page 101 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Main Battery Figure 7-1 Replacing the Main Battery N9927-90003...

  • Page 102: Removing And Replacing The Case Group Parts

    Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts Removing and Replacing the Case Group Parts Tools Required • T-8 TORX driver (set to 6 in-lb) • T-10 TORX driver (set to 9 in-lb) • Isopropyl alcohol (Use only in a well ventilated area.) •...
  • Page 103 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Case Group Parts 2. To replace the entire kickstand assembly: a. Lift the kickstand assembly off of the rear case and discard it. b. Place the new kickstand assembly on the rear case. c.
  • Page 104 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts Separating the Front and Rear Cases 1. Remove the battery. Refer to “Removing and Replacing the Main Battery” on page 7-6. 2. Refer to Figure 7-4. Loosen the six screws (item 3) that secure the RF top panel. It should not be necessary to remove these screws, just loosen them.
  • Page 105 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Case Group Parts 4. Separate the cases and position the rear case to one side, as shown in Figure 7-5, to allow access to the speaker side panel and strap handle. 5.
  • Page 106 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts 7. Position the cases side-by-side as shown in Figure 7-6. 8. Unplug the battery cable, W15, from the A5 System board at the location indicated. 9. The front and rear cases are now completely separated. Figure 7-6 Separating the Front and Rear Cases (3) 7-12...
  • Page 107 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Case Group Parts Replacing the Battery Cable 1. Separate the front and rear cases. See “Separating the Front and Rear Cases” on page 7-10. 2. Refer to Figure 7-7. Note the orientation of the cable for installation of the new cable, then, using a small flat-blade screwdriver to move the cable connector, release the retention clips on the cable connector and remove the cable from the rear case.
  • Page 108 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts Replacing the I/O Side Panel, Doors, and Gasket 1. Separate the front and rear cases. See “Separating the Front and Rear Cases” on page 7-10. 2. Refer to Figure 7-8.
  • Page 109 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Case Group Parts 3. Remove the measurement group assemblies (RF top panel assembly, A4 RF board, A5 System board, and A6 SOM board) as one unit with the I/O panel attached, but do not disconnect cable W11 from between the A2 LCD and the A5 System board.
  • Page 110 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts 5. Refer to Figure 7-10. Remove the three doors from the old I/O side panel: a. Open each door to its stopping point, then GENTLY force it beyond its stopping point to separate it from the panel.
  • Page 111 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Case Group Parts Replacing the Front Case (including the A1 Keypad) 1. Separate the front and rear cases. See Separating the Front and Rear Cases. 2. Remove the measurement group assemblies (RF top panel assembly, A4 RF board, A5 System board, and A6 SOM board) as one unit with the I/O panel attached.
  • Page 112 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts Combining the Front and Rear Cases 1. Install a new gasket on the speaker side panel being careful not to stretch it or to damage it in any way.
  • Page 113 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Case Group Parts 5. Refer to Figure 7-13. Position the rear case on top of the front case and to one side as shown. 6. Place the speaker side panel in the groove in the front case being careful not to damage the gasket. 7.
  • Page 114 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Case Group Parts 8. Position the rear case directly over, and aligned with, the front case and the side panels as shown. 9. Make sure the battery cable is tucked in between the measurement group assemblies and the speaker side panel and that it is not in the path of the screw hole indicated.

  • Page 115: Removing And Replacing The Front Panel Group Assemblies

    FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Front Panel Group Assemblies Removing and Replacing the Front Panel Group Assemblies Tools Required • T-8 TORX driver (set to 6 in-lb) • T-10 TORX driver (set to 9 in-lb) •...
  • Page 116 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Front Panel Group Assemblies 4. Reinstall the hole plugs in the front case. Apply one drop of isopropyl alcohol on each hole plug to lubricate it, making it easier to install. Use alcohol only in a well ventilated area. View the hole plugs from the front to ensure that they are fully seated.
  • Page 117 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Front Panel Group Assemblies Replacing the A2 LCD, the LCD Shield, and LCD Cables 1. Perform the steps under “Pre-replacement Procedure” on page 7-21. 2. Refer to Figure 7-16. To replace the LCD shield: a.
  • Page 118 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Front Panel Group Assemblies Figure 7-16 Replacing the A2 LCD, the LCD Shield, and LCD Cables 7-24 N9927-90003...
  • Page 119 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Front Panel Group Assemblies Replacing the A3 Front Panel Interface Board (FPIB) IMPORTANT The A3 front panel interface board contains a Lithium-ion battery. Refer to “Battery Disposal” on page 1-7 for important instructions on disposing of this printed circuit board with the battery attached.
  • Page 120 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Front Panel Group Assemblies Figure 7-17 Replacing the A3 Front Panel Interface Board Post-replacement Procedure 1. Reinstall the measurement group assemblies (RF top panel, A4 RF board, A5 System board, and A6 SOM board) as one unit with the I/O panel attached.

  • Page 121: Removing And Replacing The Measurement Group Assemblies

    FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Removing and Replacing the Measurement Group Assemblies Tools Required • T-8 TORX driver (set to 6 in-lb) • T-10 TORX driver (set to 9 in-lb) • Small flat blade screwdriver •...
  • Page 122 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Figure 7-18 Removing All Measurement Group Assemblies as One Unit 7-28 N9927-90003...
  • Page 123 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Replacing the RF Top Panel Assembly 1. Separate the front and rear cases. Refer to “Separating the Front and Rear Cases” on page 7-10. 2. Remove all measurement group assemblies as one unit. Refer to “Removing All Measurement Group Assemblies as One Unit”...
  • Page 124 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Replacing the Type-N RF Connectors and RF Cables 1. Separate the front and rear cases. See “Separating the Front and Rear Cases” on page 7-10. 2. Remove all measurement group assemblies as one unit. Refer to “Removing All Measurement Group Assemblies as One Unit”...
  • Page 125 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Replacing the Real Time Clock (RTC) Battery Located on the A5 System Board Shield IMPORTANT The RTC battery is a Lithium-ion battery and must be disposed of properly. Refer to “Battery Disposal”...
  • Page 126 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Replacing the A6 SOM Board 1. Separate the front and rear cases. Refer to “Separating the Front and Rear Cases” on page 7-10. 2. Remove all measurement group assemblies as one unit. Refer to “Removing All Measurement Group Assemblies as One Unit”...
  • Page 127 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Figure 7-22 Remove System Board Shield N9927-90003 7-33...
  • Page 128 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Figure 7-23 Replacing the A6 SOM Board 7-34 N9927-90003...
  • Page 129 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Replacing the A5 System Board 1. Separate the front and rear cases. See “Separating the Front and Rear Cases” on page 7-10. 2. Remove all measurement group assemblies as one unit. Refer to “Removing All Measurement Group Assemblies as One Unit”...
  • Page 130 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Figure 7-24 Replacing the A5 System Board 7-36 N9927-90003...
  • Page 131 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Figure 7-25 Connecting the System Board and the RF Board N9927-90003 7-37...
  • Page 132 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Figure 7-26 System Shield Torque Pattern 7-38 N9927-90003...
  • Page 133 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Replacing the RF Assembly Including the A4 RF Board 1. Separate the front and rear cases. Refer to “Separating the Front and Rear Cases” on page 7-10. 2.
  • Page 134 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Figure 7-28 RF Board Separation 7-40 N9927-90003...
  • Page 135 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Figure 7-29 RF Shield Torque Pattern N9927-90003 7-41...
  • Page 136 Repair and Replacement Procedures FieldFox Analyzer Removing and Replacing the Measurement Group Assemblies Reinstalling All Measurement Group Assemblies as One Unit 1. Reinstall the I/O side panel, if needed. Refer to “Replacing the I/O Side Panel, Doors, and Gasket” on page 7-14.
  • Page 137 FieldFox Analyzer Repair and Replacement Procedures Removing and Replacing the Measurement Group Assemblies Figure 7-30 Replacing All Measurement Group Assemblies as One Unit N9927-90003 7-43...

  • Page 138: Post-Repair Procedures

    Repair and Replacement Procedures FieldFox Analyzer Post-Repair Procedures Post-replacement Procedure 1. Reinstall the measurement group assemblies into the front case. Refer to “Reinstalling All Measurement Group Assemblies as One Unit” on page 7-42. 2. Combine the front and rear cases. Refer to “Combining the Front and Rear Cases”...

  • Page 139: Manual Checks And Procedures

    FieldFox Analyzer Repair and Replacement Procedures Post-Repair Procedures Manual Checks and Procedures Manual Check of Keyboard Check that each key works properly. Check that the keyboard backlight LEDs come on when a key is pressed. Manual Check of LCD Press Service (7) > Display, then use Display Colors and Brightness keys to exercise the display. Check for even brightness in the LCD backlight.
  • Page 140 Repair and Replacement Procedures FieldFox Analyzer Post-Repair Procedures 7-46 N9927-90003...

  • Page 141: General Purpose Maintenance And Service Procedures

    General Purpose Maintenance and Service Procedures N9927-90003...

  • Page 142: Information In This Chapter

    General Purpose Maintenance and Service Procedures FieldFox Analyzer Information in This Chapter Information in This Chapter Section Title Summary of Content Start Page Service Related User Operations How to: Page 8-3 • view options currently installed on your analyzer • view the current firmware revision •...

  • Page 143: Service Related User Operations

    FieldFox Analyzer General Purpose Maintenance and Service Procedures Service Related User Operations Service Related User Operations To View Currently Installed Options • Press System(7). • Press System Configuration. • Press Options. • Press Show Options. A list of the currently installed options is displayed. To View the Current Firmware Revision, Etc.

  • Page 144: To View Temperature Readings

    General Purpose Maintenance and Service Procedures FieldFox Analyzer Service Related User Operations To View Temperature Readings • Press System(7). • Press Service Diagnostics. • Press Internal Temperatures. See the “Temperature Related Information” section of Chapter 5 for details. Erase User Data Utility •...

  • Page 145: Options

    FieldFox Analyzer General Purpose Maintenance and Service Procedures Options Options Installed options determine the functionality of the analyzer. There is a license associated with each option. To View Currently Installed Options • Press System(7). • Press System Configuration. • Press Options. •...

  • Page 146: Firmware Upgrades

    General Purpose Maintenance and Service Procedures FieldFox Analyzer Firmware Upgrades Firmware Upgrades To Check the Current Firmware Revision • Press System(7). • Press Service Diagnostics. • Press System Information. The current firmware version is indicated on the “Firmware Release” line. For information on upgrading FieldFox firmware, go to www.agilent.com/find/fieldfox2.

  • Page 147: Miscellaneous Service And Maintenance

    FieldFox Analyzer General Purpose Maintenance and Service Procedures Miscellaneous Service and Maintenance Miscellaneous Service and Maintenance Cleaning the Display Materials: Use a soft, lint-free cloth. Use a solution with 99.5% IPA (isopropyl alcohol) or a high quality window cleaning solution. Technique: Do not rub back and forth with a polishing motion.
  • Page 148 General Purpose Maintenance and Service Procedures FieldFox Analyzer Miscellaneous Service and Maintenance N9927-90003...
  • Page 149 Appendix A N9927-90003 Appendix 1...

  • Page 150: Fieldfox S-Parameter Measurement Uncertainty, For System Verification

    Appendix A FieldFox Analyzer FieldFox S-parameter Measurement Uncertainty, for System Verification FieldFox S-parameter Measurement Uncertainty, for System Verification The system verification process validates that the network analyzer, test cables, and calibration standards are able to work together as a "system" to measure common passive devices to the accuracy of the published FieldFox S-parameter specifications.

  • Page 151: Corrected Measurement Uncertainty

    FieldFox Analyzer Appendix A FieldFox S-parameter Measurement Uncertainty, for System Verification Corrected measurement uncertainty Power level of -15 dBm, 10 Hz IF bandwidth, no averaging, battery saver off, and 90-minute warm-up time. Includes uncertainties due to drift, noise, compression, and dynamic accuracy. Coverage factor of x2 applied to uncertainties.
  • Page 152 Appendix A FieldFox Analyzer FieldFox S-parameter Measurement Uncertainty, for System Verification Corrected measurement uncertainty Power level of -15 dBm, 10 Hz IF bandwidth, no averaging, battery saver off, and 90-minute warm-up time. Includes uncertainties due to drift, noise, compression, and dynamic accuracy. Coverage factor of x2 applied to uncertainties.
  • Page 153 Index erase user data utility 5-28 error log 5-28 A1 keypad calibration illustrated ANSI Z540 standards compliant, protection part number Option A6J supplies removal and replacement commercial, Option UK6 part numbers 6-14 A2 LCD in CAT and NA modes 5-26 illustrated ISO 17025 standards compliant, operation...
  • Page 154 Index removal and replacement SA mode 5-24 smart power management 5-18 QuickCal 5-26 theory of operational check operational files 5-28 LAN interface option general information 5-30 removing calibration assemblies, See specific assembly. service and support illustrated parts, See specific part. Option 1A7 manual check 7-45...
  • Page 155 Index service, part numbers 6-13 troubleshooting safety front panel group considerations measurement group earth ground power up symbols where to begin screen temp 5-25 SD card used to install firmware 7-45 upgrades service firmware 5-28 battery maintenance user accessible files 5-28 cleaning the display user data...
  • Page 156 Index Index-4 N9927-90003...

This manual is also suitable for:

Fieldfox mw n9914aFieldfox mw n9918aFieldfox mw vna n9925aFieldfox mw vna n9926aFieldfox mw n9915aFieldfox mw sa n9935a ... Show all

Table of Contents