HP 8719ET Service Manual
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HP 8719ET Service Manual

HP 8719ET Service Manual

Network analyzers
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Download this manual See also: Reference Manual
Service Guide
HP 8719ET/20ET/22ET
HP 8719ES/20ES/22ES

Network Analyzers

HP Part Number 08720-90397
Printed in USA
September 1999
© Copyright 1999
Hewlett-Packard Company

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Summary of Contents for HP 8719ET

  • Page 1: Network Analyzers

    Service Guide HP 8719ET/20ET/22ET HP 8719ES/20ES/22ES Network Analyzers HP Part Number 08720-90397 Printed in USA September 1999 © Copyright 1999 Hewlett-Packard Company...
  • Page 2 Notice The information contained in this document is subject to change without notice. Hewlett-Packard 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: Safety Notes

    Safety Notes The following safety notes are used throughout this manual. Familiarize yourself with each of the notes and its meaning before operating this instrument. All pertinent safety notes for using this product are located in Chapter 15 , “Safety and Regulatory Information.”...

  • Page 4: Servicing

    The Service Guide is not part of a standard shipment and is available only as Option 0BW, or by ordering HP part number 08720-90397. A CD-ROM with the Service Guide in PDF format is included for viewing or printing from...
  • Page 5 Contents 1. Service Equipment and Analyzer Options Information on This Chapter ...........1-2 Service Test Equipment .
  • Page 6 Contents Source Linearity Performance Test ......... . 2-43 Dynamic Range Performance Test .
  • Page 7 Step 3. HP-IB Systems Check ........
  • Page 8 Contents Agilent 8719ET and Agilent 8720ET Standard, Option 004 ..... . . 4-31 Agilent 8722ET Standard, Option 004 ........4-32 5.
  • Page 9 HP-IB Failures ........
  • Page 10 HP-IB Service Mnemonic Definitions ........
  • Page 11 A69 Step Attenuator (All ET Option 004 Models).......12-23 A23 DC Block (Agilent 8719ET Option 004 and Agilent 8720ET Option 004 Only)..12-23 A62 Directional Couplers .

  • Page 12: Table Of Contents

    Contents Information on This Chapter ..........13-2 Assembly Replacement Sequence .
  • Page 13 Contents Removal ............. . .14-14 Replacement .
  • Page 14 Contents Safety Symbols ............15-4 Instrument Markings .
  • Page 15 Assembly Replacement and Post-Repair Procedures 14-1...

  • Page 16: Information On This Chapter

    Information on This Chapter This chapter contains procedures for removing and replacing the major assemblies of the HP 8719ET/ES, HP 8720ET/ES, and HP 8722ET/ES network analyzers. A table showing the corresponding post-repair procedures for each replaced assembly is located in the “Post-Repair Procedures”...

  • Page 17: Assembly Replacement Sequence

    HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Assembly Replacement Sequence RF Network Analyzers Assembly Replacement Sequence The following steps show the sequence to replace an assembly in the network analyzer. Step 1. Identify the faulty group. Begin with Chapter 4 , “Start Troubleshooting Here.”...

  • Page 18: A15 Preregulator

    HP 8719ES/20ES/22ES RF Network Analyzers Procedures in This Chapter The following sections describe the assembly replacement procedures for the HP 8719ET/ES, HP 8720ET/ES, and HP 8722ET/ES assemblies: • Replacing the Line Fuse , on page 14-5 • Removing the Covers , on page 14-6 •...

  • Page 19: Replacing The Line Fuse

    2. Use a small slot screwdriver to pry open the fuse holder. 3. Replace the blown fuse. For 115V operation, use a 5A 125V TD fuse (HP part number 2110-1059). For 230V operation, use a 4A 250V TD fuse (HP part number 2110-0734).

  • Page 20: Removing The Covers

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Covers HP 8719ES/20ES/22ES RF Network Analyzers Removing the Covers Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • T-20 TORX screwdriver Removing the top cover 1. Remove both upper rear feet (item 1) by loosening the attaching screws (item 2).
  • Page 21 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the Covers RF Network Analyzers Service Guide 14-7...

  • Page 22: Removing The Front Panel Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Front Panel Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the Front Panel Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • small slot screwdriver • ESD (electrostatic discharge) grounding wrist strap •...
  • Page 23 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the Front Panel Assembly RF Network Analyzers Service Guide 14-9...

  • Page 24: Removing The Front Panel Interface And Keypad Assemblies

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Front Panel Interface and Keypad Assemblies HP 8719ES/20ES/22ES RF Network Analyzers Removing the Front Panel Interface and Keypad Assemblies Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • small slot screwdriver •...
  • Page 25 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the Front Panel Interface and Keypad Assemblies RF Network Analyzers Service Guide 14-11...

  • Page 26: Removing The Display Lamp And Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Display Lamp and Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the Display Lamp and Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • small slot screwdriver • ESD (electrostatic discharge) grounding wrist strap •...
  • Page 27 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the Display Lamp and Assembly RF Network Analyzers Service Guide 14-13...

  • Page 28: Removing The Rear Panel Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Rear Panel Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the Rear Panel Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap Removal 1.
  • Page 29 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the Rear Panel Assembly RF Network Analyzers Service Guide 14-15...

  • Page 30: Removing The Rear Panel Interface Board Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Rear Panel Interface Board Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the Rear Panel Interface Board Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap Removal 1.
  • Page 31 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the Rear Panel Interface Board Assembly RF Network Analyzers Service Guide 14-17...

  • Page 32: Removing The Source Assemblies

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the Source Assemblies HP 8719ES/20ES/22ES RF Network Analyzers Removing the Source Assemblies Tools Required • T-15 TORX screwdriver • 5/16-inch open-end torque wrench (set to 10 in-lb) • ESD (electrostatic discharge) grounding wrist strap Start Removal 1.

  • Page 33: Replacement

    Check all the pin sockets from the back of the A59 board to ensure that all of the pins are inserted. For HP 8722ET/ES models, you may need an eye glass to inspect the shallow pins of the S1 high band switch.

  • Page 34: Removing The A7 Cpu Board Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A7 CPU Board Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the A7 CPU Board Assembly Tools Required • T-10 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap Removal 1. Disconnect the power cord.
  • Page 35 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A7 CPU Board Assembly RF Network Analyzers Service Guide 14-21...

  • Page 36: Removing The A7Bt1 Battery

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A7BT1 Battery HP 8719ES/20ES/22ES RF Network Analyzers Removing the A7BT1 Battery Tools Required • T-10 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap • soldering iron with associated soldering tools Removal 1.
  • Page 37 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A7BT1 Battery RF Network Analyzers Service Guide 14-23...

  • Page 38: Removing The A15 Preregulator Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A15 Preregulator Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the A15 Preregulator Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap Removal 1.
  • Page 39 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A15 Preregulator Assembly RF Network Analyzers Service Guide 14-25...

  • Page 40: Removing The A19 Graphics Processor Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A19 Graphics Processor Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the A19 Graphics Processor Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap Removal 1.
  • Page 41 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A19 Graphics Processor Assembly RF Network Analyzers Service Guide 14-27...

  • Page 42: Removing The A3 Disk Drive Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A3 Disk Drive Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the A3 Disk Drive Assembly Tools Required • T-8 TORX screwdriver • T-10 TORX screwdriver • T-15 TORX screwdriver • small slot screwdriver •...
  • Page 43 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A3 Disk Drive Assembly RF Network Analyzers Service Guide 14-29...

  • Page 44: Removing The A62, A63 Test Port Couplers And Led Board Assemblies

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A62, A63 Test Port Couplers and LED Board Assemblies HP 8719ES/20ES/22ES RF Network Analyzers Removing the A62, A63 Test Port Couplers and LED Board Assemblies Tools Required • T-10 TORX screwdriver •...
  • Page 45 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A62, A63 Test Port Couplers and LED Board Assemblies RF Network Analyzers Service Guide 14-31...

  • Page 46: Removing The A26 High Stability Frequency Reference (Option 1D5) Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the A26 High Stability Frequency Reference (Option 1D5) Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the A26 High Stability Frequency Reference (Option 1D5) Assembly Tools Required • T-10 TORX screwdriver • T-15 TORX screwdriver •...
  • Page 47 HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Removing the A26 High Stability Frequency Reference (Option 1D5) Assembly RF Network Analyzers Service Guide 14-33...

  • Page 48: Removing The B1 Fan Assembly

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Removing the B1 Fan Assembly HP 8719ES/20ES/22ES RF Network Analyzers Removing the B1 Fan Assembly Tools Required • 2.5-mm hex-key driver • T-10 TORX screwdriver • T-15 TORX screwdriver • ESD (electrostatic discharge) grounding wrist strap Removal 1.

  • Page 49: Post-Repair Procedures

    HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Post-Repair Procedures RF Network Analyzers Post-Repair Procedures After the replacement of an assembly, you must perform the service procedures listed in Table 14-1. NOTE Perform the procedures in the order that they are listed in the table.

  • Page 50: A18 Display

    Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Post-Repair Procedures HP 8719ES/20ES/22ES RF Network Analyzers Replaced Assembly Adjustments / Correction Verification Constants (CC) A11 Phase Lock A7 Switch Positions Frequency Accuracy Performance Test Analog Bus CC (Test 44) Source Pretune (Tests 43)

  • Page 51: Power Linearity Adjustment

    HP 8719ET/20ET/22ET Assembly Replacement and Post-Repair Procedures HP 8719ES/20ES/22ES Post-Repair Procedures RF Network Analyzers Replaced Assembly Adjustments / Correction Verification Constants (CC) A62/A63 (Directional Output Power Adjustments Level Accuracy Performance Test Couplers) Source Linearity Performance Test Power Linearity Adjustments A64 R1 Sampler...
  • Page 52 Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET Post-Repair Procedures HP 8719ES/20ES/22ES RF Network Analyzers 14-38 Service Guide...

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