Front Panel Interface Board Replacement | HP 8517B guide

HP 8517B Test Set Replacement Procedures

Assembly Replacement Procedures

O-Ring Replacement Anti-Rotation Clamp O-Ring Replacement

1.Pry the O-ring out of the clamp with fine tweezers or a similar tool.

2.To insert the new O-ring (HP part number 0900-0007), engage one side of the ring in the slot of the phenolic clamp donut (shown in Figure 6-5).

3.Use your fingers to seat the O-ring into the groove within the clamp.

Figure 6-5 Positioning the O-Ring Within the Clamp

Front Panel and

Interface Board

Replacement

A1 Front Panel and Interface Board Assembly

1.See Figure 6-2for component locations.

2.Remove the four semi-rigid cables that connect to the coupler on the front panel.

3.Remove the ten screws that secure the front panel assembly to the front frame.

4.Grasp the test ports and pull the front panel assembly out, tilting the top of the assembly toward you.

5.Unplug the ribbon cable attached to the board assembly on the front panel.

6.Grasp the cable attached to the line switch and carefully pull it toward the front of the instrument. This provides enough cable length for you to tilt the front panel assembly the rest of the way out of the test set frame.

7.Carefully remove the front panel assembly.

8.Lay the front panel assembly face down on the work surface.

6-10HP 8517B S-Parameter Test Set Manual

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HP 8517B manual Front Panel Interface Board Replacement, Ring Replacement Anti-Rotation Clamp O-Ring Replacement

Contents

HP 8517B Parameter Test Set Restricted Rights Legend What You’ll Find in This Manual… Warranty Certification Warranty Assistance Service and Support Safety and Regulatory Information Instrument Markings Safety Earth Ground Typeface Conventions Italics HP 8517B S-Parameter Test Set Manual Contents Installation Specifications HP 8517B Test Set Replacement Procedures HP 8517B Replaceable Parts Contents-6HP 8517B S-Parameter Test Set Manual How to Use This Manual Getting Started Test Set Description Test Set Description Option 004, HP 8517B Test Set Block Diagram HP 8517B Test Set Options HP 8517B Test Set OptionsHP 8517B Options and Descriptions Options HP 8517B Test Set Option Description Test Set Operation Verification Verifying Test Set OperationVerifying Test Set Operation Maintaining Measurement Accuracy Maintaining Measurement Accuracy Instruments Supported by This Manual Instruments Supported by This Manual Instrument Firmware Compatibility Source Firmware Revision Compatibility Matrix Service and Support Options Available Service and Support Options AvailableService and Support Options Option Description HP 8517B Test Set Accessories Available AccessoriesAccessories Available Accessories Accessory Model Number Contents or Description Recommended Test Equipment Critical Recommended Model Use SpecificationsRecommended Test Equipment Recommended Test Equipment Maximum Input Power Levels Operating and Safety PrecautionsSafety Precautions Operating and Safety Precautions 14HP 8517B S-Parameter Test Set Manual 2Installation Initial Inspection Initial Inspection RF Source Cable, Bench-top Configuration Anti-rotation Clamps RF Source Cable, Rack Configuration Recommended Static-Free Workstation Configuration Installing the Test Set Into a System RackInstalling the Test Set on a Bench Installing the Test Set Into a System Rack Configuring the Test Set in a System Configuring the Test Set in a System Connection Instructions and Connector Descriptions Connecting the System CablesReplacing O-Rings in Anti-Rotation Clamps Packaging the Test Set Packaging the Test Set 8HP 8517B S-Parameter Test Set Manual Front-Panel Features Front-Panel Description Rear-Panel Features Active devices under test Controlling Multiple Test SetsPort 1 Bias HP 8517B S-Parameter Test Set Manual Initialization at Power-Up Selecting a Test Set Multiple Test-Set Connections Selecting a Test Set When Multiple Units are Configured With Switch #1 With Switch #2 New Address Measurement Calibration Measuring High-Power Devices with Option Changing Signal Path States After System Calibration Changing the Test Port Attenuators Storing Trace Memories Viewing Normalized Parameters Default to Memory Making Operational Checks Instrument State Local Auxiliary Menus System Performance Verification Using Anti-Rotation Clamps Attach the first clamp Using a Torque Wrench Correctly Positioning the thumb-screw Positioning the connector Visually Aligning Clamp and Nut Flats Aligning the thumb-screw Using Anti-Rotation ClampsAttaching the second clamp HP 8517B S-Parameter Test Set Manual HP 8510/HP 8517B Mechanical Specifications Mechanical SpecificationsSupplemental Characteristics HP 8510/HP 8517B Supplemental Characteristics 3HP 8517B S-Parameter Test Set Manual HP 8517B S-Parameter Test Set Manual Troubleshooting the Test Set Theory of Operation RF Source PowerTheory of Operation Theory of Operation LO Signal Control Troubleshooting Sequence Troubleshooting Sequence Equipment Required, But Not Supplied Equipment Needed But Not SuppliedEquipment Type HP Part Number Power Supply Voltages to A15 Troubleshooting ProceduresAssembly Power Supply Voltages to A27 Power Supply Fuses and Test Points Instrument HP-IB Switch Setting Fuse Location If the Self-Test Fails to Run Properly Active LED Location Self-Test Indication LSN TLK SRQ REM Using the Service Adapter Service Adapter Connections Results Observations Service Adapter ConclusionsHP 85102 is working properly. The problem is Most likely in the source or the test set. Refer to Unratioed Power Test Isolating Signal Path ProblemsTesting Signal Paths Drive Port Testing Paths 5 Test switch to restore factory default conditions 10 RF Path 1 and Path 2, HP 8517B Standard Test Set 11 RF Path 3 and Path 4, HP 8517B Standard Test Set 12 RF Path 5 and Path 6, HP 8517B Standard Test Set 13 RF Path 1 through Path 4, HP 8517B Option 007 Test Set 14 RF Signal for Path 1 through Path 4, HP 8517B Option 15 RF Path 5 and Path 6, HP 8517B Option Test Results for Path 1 through Path Sample DiagnosticsMost Probable Failures B indicates Bad indicates Good 24HP 8517B S-Parameter Test Set Manual HP 8517B Test Set Replacement Procedures Performance Tests Adjustments ESD-Safe Workstation Configuration Tools Used for Procedure HP Part Number Replacement-Procedure Tools NeededEquipment Needed But Not Supplied HP 8517B Major Assembly Location Diagram A18 Switch/Splitter Assembly Assembly Replacement ProceduresInitial Precautions Switch/Splitter Replacement A14, A10 to A13 Frequency Converter Assembly A15 Regulator Board Assembly Regulator Board Replacement Filter Capacitor ReplacementC1 to C4 Filter Capacitors Mm Test Port Connectors Diagram of 2.4 mm Test Port Connector Replacement Fan Assembly ReplacementPower Transformer B1 Fan Assembly This procedure. Disconnect the ac power cord before starting Ring Replacement Anti-Rotation Clamp O-Ring Replacement Front Panel Interface Board ReplacementA1 Front Panel and Interface Board Assembly A6 and A8 Test Port Couplers Bias Tees Replacement A7 and A9 Bias TeesTest Port Attenuator A16 or A17 Port Attenuators Buffer Amplifier A22 Input Amplifier AssemblyInput Amplifier A23 to A26 Buffer Amplifiers Post Regulator Board Replacement A27 Post Regulator Board Assembly 14HP 8517B S-Parameter Test Set Manual Introduction Rebuilt-Exchange Assemblies Ordering Information Assembly Fuse SwitchMeter Electron Tube Recovery Diode, Varactor To Order Parts . . . . Fast Manufacturer Names and Addresses Standard Abbreviations Degree Depletion ModeDecoder Shaped hole Hexadecimal, Hexagon, Hexagonal Male, Maximum, Mega, Mi, Milli, ModeHardware Helical Miniature Opt Optical, Option, Optional Picoampere, Power AmplifierPad, Power Dissipation Miter Package Pico Farad, Power FactorSubminiature, A-Type Threaded Connector Plastic Teeth, temperature, Thickness, Time, Timed, Tooth, Typical Subminiature, B-Type Slip-on ConnectorSubminiature, C-Type Threaded Connector Ambient Temperature, Tantalum Multipliers, Abbreviation and Description Abbreviation Prefix Multiple Power Cable and Plug Part Numbers Fuse Name Location Instrument FusesPart number Low Cost Rebuilt-Exchange Procedure Hewlett-Packard pays postage on boxes mailed in the U.S.A Major Assembly Reference Designator and Parts Information Description Major Assembly Locations in the Standard HP 8517B Test Set Cable Assembly A6J3 to A12J2 Cable Assembly AT1 to A10J2Cable Assembly A8J3 to A11J2 Cable Assembly A8J2 to A9J2 Flexible Cable Assemblies in the Standard HP 8517B Test Set 18HP 8517B S-Parameter Test Set Manual Miscellaneous Parts, Front Panel HP 8517B Test Set 10 Test Port Connector Assembly Components 11 Miscellaneous Parts, Rear Panel HP 8517B Test Set Washer-LK Intl T 3/8 in 0.377-IN-ID Teflon Cable SleeveLine Module Retainer Clips Washer-LK Intl T 7/16 in 0.439-IN-ID Detailed Views of Hardware Stack-Ups 12 Miscellaneous Parts, Top Internal View 2200-0107 Machine Screws 13 Miscellaneous Parts, MotherboardC1 C4 0180-2671 Connector 5-PIN M Post Type J8 and J9 Connector 5-PIN M Post TypeConnector Post Type 0.100-PIN-SPCG 14-CONT Connector-PC Edge 2-Rows XA5 XA6 to XA14 Not Assigned XA15 14 Parts Unique to HP 8517B Option 001 Test Set Cable Assembly, A2J12 to J10A3 Cable Assembly, A2J9 to J10A4Cable Assembly, A2J6 to J10A2 Cable Assembly, A3J3 to J10A7 Cable Assembly, A13J3 to Port 2J14 Cable Assembly, A12J3 to Port 1 J1315 Parts Unique to HP 8417B Option 002 Test Set Cable Assembly, A17J1 to A11J2 Cable Assembly, AT7 to A9J1Cable Assembly, A8J3 to A17J2 16 Parts Unique to HP 8517B Option 004 Test Set 08516-60021 DB Attenuators Post Regulator Board Assembly Beneath A22 Input Amplifier17 Parts Unique to HP 8517B Option 007 Test Set Input Amplifier A22 Input Amplifier to A18J5 HP Part NumberFront Panel J7 to A22 Input Amplifier A6 Coupler to A23 18 Parts Unique to Option 002 plus Option 19 Parts Unique to Option 004 plus Option 20 Instrument Chassis Replaceable Parts 36HP 8517B S-Parameter Test Set Manual Index HP 8517B S-Parameter Test Set Manual Index-1 Index-2HP 8517B S-Parameter Test Set Manual