Manuals / Anritsu / Computer Equipment / Network Router

Anritsu 373XXA manual Remove and Replace, Covers

Models: 373XXA

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REMOVE AND REPLACE

COVERS

Place the 373XXA on its right side (monitor down).

If not already done, remove the feet from the two left-side corners at the rear of the 373XXA.

Remove two center screws from the left cover.

Remove the center screw from rear of the left side cover.

Lift and slide the side cover away from the 373XXA.

Step 5. To remove the right cover:

Place the 373XXA its left side (monitor up).

If not already done, remove the feet from the two right-side corners at the rear of the 373XXA.

Remove the center screw from rear of the right side cover.

Remove the center screw from rear of the right side cover.

Lift and slide the side cover away from the 373XXA.

To replace the instrument covers, perform the steps above in the re- verse order.

Figure 8-1.Exploded View of 372XXB Chassis Covers

373XXA MM

8-5

Image 119

Anritsu 373XXA manual Remove and Replace, Covers

Contents

Model 373XXA Vector Network Analyzer Maintenance Manual Warranty Table of Contents, Narrative Index Table of Contents, Detailed Peripherals and Interfaces Checking the Service LOGVerification Procedure Replaceable Subassemblies and Parts · · · · · · ·Associated Information in this Manual System does not POWER-UP ·System does not BOOT-UP System has Error CodeLO 2 Calibration · RF POWER/ALC CALIBRATION·A8 Adjustment 37397A A21A2 AdjustmentPower Supply Module · A18 Rear Panel PCB · A9 PCB Bbram Chip · A9 PCB Sram Battery ·Front Panel Assembly Floppy Disk Drive · Rear Panel AssemblyDisk Related Error MESSAGES· Signal Source ModulesIntroduction · Diagnostics Menus Introduction · Operational Error Messages ·REPAIR/ Maintenance · Introduction · PrecautionsPage Chapter General Information Table of Contents Series 373XXA Vector Network Analyzer System Chapter General Information Standard Options System Description General InformationSystem Description Related Manuals8SERVICE Strategy Service Strategy9SERVICE Support Service Support General InformationND37200A-2, Field Service Kit General Information Service SupportNist Verification Kit ModelPerformance Specifications Anritsu B39553 Recommended Test Equipment General InformationAnritsu T1147-2 General Information Recommended Test EquipmentStatic Handling General Information Additional PrecautionsChapter Replaceable Parts Table of Contents Page Chapter Information Parts Ordering InformationReplaceable Parts Parts OrderingReplaceable Parts Parts Ordering Information Assembly / Part Part Number Assembly / Part 373XXA Model / Option Part NumberND44606 D45243 Major Assemblies Location Diagram Top 34 View Major Assemblies Location Diagram Bottom View Not 37397A Major Assemblies Location Diagram Bottom View 37397A Signal Source Parts Location Diagram Chapter Operational Tests Table of Contents Page 373XXA 2CHECKING Checking the Service LOG Operational TestsService LOG ProcedureIf self test fails 3SELF TestTo start the self test StepInterfaces Peripherals and Interfaces Operational Tests4PERIPHERALS Equipment Required Operational Tests Peripherals and InterfacesPrinter Test Fixture Anritsu PN B39553 Gpib Interface 5SIGNAL Path Signal Path Operational TestsChapter Performance Verification Table of Contents 373XXA MM Conditions CalibrationMeasurement Accuracy Measurement AccuracyPerformance Verification 3MEASUREMENT4VERIFICATION Performance Verification Verification ProcedureProcedure Parameters KEY System Parameters5KEY System Performance Verification KEY System Parameters Measurement ProcedurePage Chapter Troubleshooting Table of Contents Page Manual AssociatedInformation in this System does not Recommended Test Equipment TroubleshootingPOWER-UP Location of Connectors for Power Supply Voltage Checks Troubleshooting System does not POWER-UPSystem does not POWER-UP Troubleshooting 5SYSTEM does not Troubleshooting System does not BOOT-UPBOOT-UP System does not BOOT-UP Troubleshooting Hard Disk Utilities Screen Display System has Error Code TroubleshootingProblems 6SYSTEM has ErrorTroubleshooting System has Error Code Failure Failed Assembly Suffix Failure Mode SYS DescriptionSee Sheet From Sheet 1 From Sheet SET/RECEIVER Signal Source PhaseSOURCE/TEST SET/RECEIVER 7SOURCE/TESTCodes SOURCE/TEST SET/RECEIVER TroubleshootingError Codes Possible Failed Assemblies LO1 Band Start Stop Test SET ModuleCRT Display Test PERIPHERALS/ Interface8PERIPHERALS InterfaceQuestion Measurement in Question Troubleshooting9MEASUREMENT Conditions Check List ing items Troubleshooting Measurement in QuestionBuffer Amp Wire Color Below 38 GHz Above 38 GHzWire Color Forward Reverse Frequency SQM SDM OutSDM Troubleshooting Signal PathsSQM Signal Paths TroubleshootingChapter Adjustments Contents Page Post Calibration Procedure Equipment RequiredLO1 Calibration CalibrationIf calibration fails AdjustmentsLO 2 Calibration If calibration passes4FREQUENCY AdjustmentsFrequency Calibration Frequency Calibration 373XXA VNA 5RF POWER/ALC RF POWER/ALC CalibrationGHz Power Sensor Setup Procedure Adjustments RF POWER/ALC CalibrationVNA Anritsu ML24XXA Threshold Adjustments Source Lock Threshold6SOURCE Lock OLD Calibration 7A8 Adjustment Adjustments A8 Adjustment 37397A8A21A2 Adjustment A21A2 Adjustment 37397AA21A2 Adjustment 37397A Chapter System Description Table of Contents Page System Overview System Description System OverviewPcbs System Description System OverviewSource System Overview System DescriptionAssemblies Signal Source ModuleAnalog Subsystem Assemblies 3ANALOG SubsystemAnalog Subsystem Assemblies System Description Analog Subsystem Assemblies System Description Analog Subsystem Assemblies 4DIGITAL Subsystem A9 Main Processor PCB AssemblyDigital Subsystem Assemblies PCB Digital Subsystem Assemblies System DescriptionPCB Assembly 5MAIN Chassis Main Chassis AssembliesMain Chassis Assemblies Voltage Assemblies Where Used 19/7-20 Chapter Remove and Replace Procedures Table of Contents Remove / Replace Test SET Module Remove / Replace Signal Source Module Assemblies ·Equipment Required Chapter Remove and Replace ProceduresPreliminary CoversRemove and Replace 3COVERSCovers Remove and Replace5A9 PCB Bbram Chip A1 A9 PCBs ProcedureA13 A16 PCB’s Procedure PcbsRemove and Replace A9 PCB Bbram Chip A1-A9 and A13-A16 PCB Assemblies Removal DiagramA9 PCB Bbram Chip Remove and Replace Remove/Replace ProcedurePost Replacement Procedure Location of Bbram Chip on the A9 PCB A9 PCB Sram Battery Remove and Replace Recall Or Save A9 PCB Sram Battery8FRONT Panel AssemblyA24 VME BUS Terminator PCB Terminator PCBRemoval of Front Panel Assembly Front Panel Assembly9VGA Display Monitor VGA Display MonitorRemove and Replace VGA Display Monitor Location of Internal VGA Monitor Assembly Mounting ScrewsDisplay LCD Liquid Crystal Display LCDLiquid Crystal 11FLOPPY Disk Drive Floppy Disk Drive10ALCD Backlight LampFloppy Disk Drive Location of Floppy Disk Drive Assembly Mounting Plate ScrewsEquipment Required Option 11 only Rear Panel Assembly12REAR Panel Rear Panel Assembly Module FAN AssemblyFAN Assembly Power SupplyA18 Rear Panel PCB Test B Remove and Replace A18 Rear Panel PCBA18 Rear Panel PCB Remove and Replace 16TEST SET Module Test SET Module AssembliesTest SET Module Assemblies Remove the Power Amplifier assembly see previous paragraph REF a Modules Remove and Replace Signal Source Modules17SIGNAL Source Signal Source Modules 15.Signal Source Module Removal Details A21A1 Source YIG Bias Control PCB 16.Signal Source Module Assemblies Removal DetailsRemove and Replace Signal Source Modules Signal Source Modules Appendix a Diagnostics Menus Table of Contents Page Start Self Test Diagnostics MenusRead Service Log Appendix aDiagnostics Menus Appendix a Appendix a Diagnostics Menus Page Figure A-1. Diagnostics Menus System Description Diagnostics MenusPage Appendix B Error Messages Table of Contents Page Appendix B Service LOG Error Messages Appendix B Error Message Description Corrective Action Service LOG Error MessagesStandard CAL not Valid for General Floppy Drive Error Message Description Gpib Command Error DescriptionsGpib Execution Error Descriptions Table B-3.GPIB-Related Error Messages 3 Table B-3.GPIB-Related Error Messages 4 Table B-3.GPIB-Related Error Messages 5 Gpib Query Error Descriptions Gpib Device Dependent Error Descriptions Table B-3.GPIB-Related Error Messages 8 To D 12 BIT a to D Fail Table B-4.Service Log Error Messages 2 Table B-4.Service Log Error Messages 3 Introduction · Precautions Page Pin Depth Problems Appendix C Connector Maintenance Check Procedures1INTRODUCTION 2PRECAUTIONS Reading Precautions Appendix CPort Pin Depth Gauge Conn. Type 3REPAIR Appendix C REPAIR/ MaintenanceMaintenance Appendix D Performance Specifications Page Appendix D Measurement Time vs. Span for 101 Data Points typi- cal Performance Specifications Appendix DDisplay Capabilities Distance 0.1 ∝ m SWR 1 pU Power 0.05 dBPower Range Accuracy Harmonics & Harmonic RelatedStandard Time Base High Stability Time Base OptionData Transfer Speed with or without cal 150 kbytes Hard CopyThroughput Times ms with Correction typical 37300A Rear Panel Connectors and ControlsThroughput Times ms without Correction typical Main Lobe Width null \ null in ns = GPC-7 Calibration Kit Connector Calibration KitOption ES Standard 3650 SMA/3.5 mm Calibration Kit3671V50-2 Universal Test Port Converter On Each Side Flexible Test Port CablesModel 37347A K Connectors Reflection Measurements Model 37369A K Connectors Reflection Measurements 15/D-16 Appendix E Performance Verification Software User’s Guide Page Subject Index Page Calibration and Measurement Condi A9 PCB Sram BatteryRear Panel PCB A9 PCB Bbram ChipTo P Index Index To S