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Anritsu 373XXA manual Troubleshooting System does not BOOT-UP, 5SYSTEM does not, Boot-Up

Models: 373XXA

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TROUBLESHOOTING

SYSTEM DOES NOT BOOT-UP

	Step 8.		Using a DMM and/or an oscilloscope, measure the +5 volt
			power supply at connector J13 on the Motherboard. Refer
			to Figure 5-1 and Table 5-1, (page 505).
	Step 9.		Press the 373XXA Power key off, and and reinstall the A13
			and A14 PCB’s removed in Step 6.
	If any of the DC voltage tests fail in steps 1 through 8 above, replace
	the power supply module.
	If any of the DC voltage tests fail with the power supply module con-
	nected to the 373XXA Motherboard — but pass with it disconnected —
	then the most probable cause of the failure is that one of the 373XXA
	assemblies is demanding an excessive amount of current. To locate the
	failed assembly:
	1.	Press the 373XXA Power key off, and unplug a single assembly.
	2.	Press the 373XXA Power key on, and note if the failed power sup-
		ply functions normally.
	3.	Repeat Steps 1 and 2 until an assembly is found that clears the
		power supply failure. The removed assembly is suspect and
		should be replaced.
5-5SYSTEM DOES NOT	If the 373XXA does not boot-up when it is powered-up, perform the
BOOT-UP	checks described below.

Boot-up Process The boot-up process is controlled by the firmware located on the A9 Sequence PCB assembly (processor PROM) The boot-up activities include:

Testing and initializing the A9 Main Processor PCB

Testing communication between the A9 PCB and the digital PCB assemblies (A13, A14, A15, A16). The following messages will be displayed at this juncture:

Initializing front panel knob (A14/A20)....

Initializing GPIB (A13/A18)....

Initializing external keyboard (A13)....

Initializing external trigger (A13/A5)....

Initializing front panel (A14/A20)....

Loading of system software from disk into memory

Starting operation of the system software.

System is booting—message is displayed.

373XXA MM

5-7

Image 61

Anritsu 373XXA manual Troubleshooting System does not BOOT-UP, 5SYSTEM does not, Boot-Up

Contents

Model 373XXA Vector Network Analyzer Maintenance Manual Warranty Table of Contents, Narrative Index Table of Contents, Detailed Verification Procedure Checking the Service LOGReplaceable Subassemblies and Parts · · · · · · · Peripherals and InterfacesSystem does not BOOT-UP System does not POWER-UP ·System has Error Code Associated Information in this ManualA8 Adjustment 37397A RF POWER/ALC CALIBRATION·A21A2 Adjustment LO 2 Calibration ·Front Panel Assembly A9 PCB Bbram Chip · A9 PCB Sram Battery ·Floppy Disk Drive · Rear Panel Assembly Power Supply Module · A18 Rear Panel PCB ·Introduction · Diagnostics Menus Signal Source ModulesIntroduction · Operational Error Messages · Disk Related Error MESSAGES·REPAIR/ Maintenance · Introduction · PrecautionsPage Chapter General Information Table of Contents Series 373XXA Vector Network Analyzer System Chapter General Information System Description System Description General InformationRelated Manuals Standard Options8SERVICE 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 Replaceable Parts Parts Ordering InformationParts Ordering InformationReplaceable 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 Service LOG Checking the Service LOG Operational TestsProcedure 2CHECKINGTo start the self test 3SELF TestStep If self test fails4PERIPHERALS Peripherals and Interfaces Operational TestsInterfaces 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 Measurement CalibrationConditions Performance Verification Measurement Accuracy3MEASUREMENT AccuracyProcedure Performance Verification Verification Procedure4VERIFICATION 5KEY System KEY System ParametersParameters Performance Verification KEY System Parameters Measurement ProcedurePage Chapter Troubleshooting Table of Contents Page Information in this AssociatedManual POWER-UP Recommended Test Equipment TroubleshootingSystem does not Location of Connectors for Power Supply Voltage Checks Troubleshooting System does not POWER-UPSystem does not POWER-UP Troubleshooting BOOT-UP Troubleshooting System does not BOOT-UP5SYSTEM does not System does not BOOT-UP Troubleshooting Hard Disk Utilities Problems System has Error Code Troubleshooting6SYSTEM has Error Screen DisplayTroubleshooting System has Error Code Failure Failed Assembly Suffix Failure Mode SYS DescriptionSee Sheet From Sheet 1 From Sheet SOURCE/TEST SET/RECEIVER Signal Source Phase7SOURCE/TEST SET/RECEIVERError Codes Possible Failed Assemblies SOURCE/TEST SET/RECEIVER TroubleshootingCodes LO1 Band Start Stop Test SET Module8PERIPHERALS PERIPHERALS/ InterfaceInterface CRT Display Test9MEASUREMENT Measurement in Question TroubleshootingQuestion Conditions Check List ing items Troubleshooting Measurement in QuestionWire Color Forward Reverse Wire Color Below 38 GHz Above 38 GHzFrequency SQM SDM Out Buffer AmpSDM Troubleshooting Signal PathsSQM Signal Paths TroubleshootingChapter Adjustments Contents Page LO1 Calibration Procedure Equipment RequiredCalibration Post CalibrationLO 2 Calibration AdjustmentsIf calibration passes If calibration failsFrequency Calibration Adjustments4FREQUENCY Frequency Calibration 373XXA VNA 5RF POWER/ALC RF POWER/ALC CalibrationGHz Power Sensor Setup Procedure Adjustments RF POWER/ALC CalibrationVNA Anritsu ML24XXA 6SOURCE Lock Adjustments Source Lock ThresholdThreshold 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 DescriptionAnalog Subsystem Assemblies Signal Source Module3ANALOG Subsystem AssembliesAnalog Subsystem Assemblies System Description Analog Subsystem Assemblies System Description Analog Subsystem Assemblies Digital Subsystem Assemblies A9 Main Processor PCB Assembly4DIGITAL Subsystem 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 ProceduresRemove and Replace Covers3COVERS PreliminaryCovers Remove and ReplaceA13 A16 PCB’s Procedure A1 A9 PCBs ProcedurePcbs 5A9 PCB Bbram ChipRemove and Replace A9 PCB Bbram Chip A1-A9 and A13-A16 PCB Assemblies Removal DiagramPost Replacement Procedure Remove/Replace ProcedureA9 PCB Bbram Chip Remove and Replace Location of Bbram Chip on the A9 PCB A9 PCB Sram Battery Remove and Replace Recall Or Save A9 PCB Sram BatteryA24 VME BUS Terminator PCB AssemblyTerminator PCB 8FRONT PanelRemoval of Front Panel Assembly Front Panel Assembly9VGA Display Monitor VGA Display MonitorRemove and Replace VGA Display Monitor Location of Internal VGA Monitor Assembly Mounting ScrewsLiquid Crystal Liquid Crystal Display LCDDisplay LCD 10ALCD Backlight Floppy Disk DriveLamp 11FLOPPY Disk DriveFloppy Disk Drive Location of Floppy Disk Drive Assembly Mounting Plate Screws12REAR Panel Rear Panel AssemblyEquipment Required Option 11 only Rear Panel Assembly FAN Assembly FAN AssemblyPower Supply ModuleA18 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 17SIGNAL Source Remove and Replace Signal Source ModulesModules 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 Read Service Log Diagnostics MenusAppendix a Start Self TestDiagnostics 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 1INTRODUCTION 2PRECAUTIONS Appendix C Connector Maintenance Check ProceduresPin Depth Problems Port Pin Depth Gauge Conn. Type Precautions Appendix CReading Maintenance Appendix C REPAIR/ Maintenance3REPAIR 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 Standard Time Base Harmonics & Harmonic RelatedHigh Stability Time Base Option AccuracyData Transfer Speed with or without cal 150 kbytes Hard CopyThroughput Times ms without Correction typical 37300A Rear Panel Connectors and ControlsThroughput Times ms with Correction typical Main Lobe Width null \ null in ns = Option ES Connector Calibration KitStandard 3650 SMA/3.5 mm Calibration Kit GPC-7 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 Rear Panel PCB A9 PCB Sram BatteryA9 PCB Bbram Chip Calibration and Measurement CondiTo P Index Index To S