Troubleshooting, Failure Indicator Assembly at Fault | HP 181A

2

Chapter 2 Service

Troubleshooting the Counter

9If the FAIL message is displayed for a test, use Table 2-5 to determine which assembly may need replacing.

Table 2-5. Troubleshooting

Failure Indicator	Assembly at Fault

DISP: FAIL	A2	Display Board Assembly, or A1 Motherboard Assembly

CPU: FAIL	A1	Motherboard Assembly

ROM: FAIL	A1	Motherboard Assembly

RAM: FAIL	A1	Motherboard Assembly

EEPROM: FAIL	A1	Motherboard Assembly

HP-IB: FAIL	A1	Motherboard Assembly

QSPI: FAIL	A1	Motherboard Assembly, or A2 Display Board Assembly

FPGA: FAIL	A1	Motherboard Assembly, or A2 Display Board Assembly

FR END: FAIL	A1	Motherboard Assembly, or A4 AC Power Supply Assembly

MEAS: FAIL	A1	Motherboard Assembly, or A4 AC Power Supply Assembly

INTERP: FAIL	A1	Motherboard Assembly, or A4 AC Power Supply Assembly

KEYPAD: FAIL	Keypad, or Front Panel Assembly, or A1 Motherboard Assembly.

PRINT: FAIL	A1	Motherboard Assembly

10Refer to Chapter 3, “Replacing Assemblies,” in this service guide for dissasembly and reassembly procedures.

NOTE	After replacing an assembly, perform the calibration procedures in this
	chapter.

2-52	Assembly-Level Service Guide

Image 148

HP 181A manual Troubleshooting, Failure Indicator Assembly at Fault

Contents

HP 53131A/132A/181A 225 MHz Counter Page Assembly-Level Service Guide Safety Considerations contd Contents Test 2 Trigger Level HP 53131A/132A Only Test 5 Option 030/050/124 Channel 3 Frequency Test 2 Channel 1 Frequency Sensitivity HP 53181A Service About the HP 53181A Calibration Menu Replacing Assemblies Retrofitting Options Index Contents Xii Assembly-Level Service Guide Repair Strategy How to Use This GuideInstrument Identification Assembly-Level Service Guide Organization Instruments Covered by this Guide How to Order Guides Description of the 225 MHz Counters Assembly-Level Service Guide Xvii Options Hardware Accessories Supplied and Available Accessories SuppliedAccessories Available Support Preface Performance Tests Operational Verification IntroductionIntroduction Complete Performance Tests Optional HP-IB VerificationRecommended Calibration Cycle Test Record Equipment Required Equipment RequiredRecommended Test Equipment HP 53131A/132A/181A Operational Verification Power-On Self TestsHP 53131A/132A/181A Operational Verification HP 53131A/132A Counter 1B. Operational Verification Setup for HP 53181A HP 53131A/132A/181A Operational Verification HP 53181A Run Self Test Termination CheckCounter HP 3458A Digital Multimeter Press Channel 1 50Ω/1MΩ key External Arm Test HP 53131A/132A Only Counter SetupEquipment Procedure Synthesized Signal GeneratorHP 8130A Pulse Generator HP 8663A External Timebase Tests HP 3325B Synthesizer #1 MHz External Timebase Input HP 53131A and HP 53181A OnlyHP 3325B Synthesizer #2 Counter MHz External Timebase Input HP 53131A and HP 53181A Only MHz External Timebase Input for the HP 53132A HP 53131A/132A Complete Performance Tests HP 53131A/132A Complete Performance TestsHP 53131A/132A Performance Tests Counter Setup Test 1 Time Interval HP 53131A/132A OnlyEquipment Test 1 Time Interval HP 53131A/132A Only Procedure HP 8130A HP53131A/132Pulse Generator Counter Test 2 Trigger Level HP 53131A/132A Only Test 2 Trigger Level HP 53131A/132A Only Trigger Level Test Setup HP 3325B HP 53131A/132A Synthesizer Counter This is the trigger level it should be 0.0 V ±15 mV Equipment Counter HP 8663A Synthesized Signal Generator KHz to 100 MHz Sensitivity for HP 53131A/132AHP 53131A/132A Ref. HP 8663A Synthesized Performance Tests MHz to 200 MHz Sensitivity for HP 53131A/132A MHz to 225 MHz Sensitivity for HP 53131A/132A Equipment Channels 1 and 2 Frequency Accuracy Test Setup HP 53131A/132A Counter Performance Tests Equipment HP 53131A/132A Counter HP 8663A Synthesized Signal GeneratorSweep Oscillator To 3.0 GHz Sensitivity for Option 030 only Sweep the frequencies from 200 MHz to 5.0 GHz Sweep the frequencies from 200 MHz to 12.4 GHz Gate & ExtArm, Time Time 1.000 s On the Counter, press Run key Test 7 Peak Volts, Channels 1 and 2 HP 53131A/132A Only Test 7 Peak Volts, Channels 1 and 2 HP 53131A/132A Only Volt Peak HP 3325B HP 53131A/132ASynthesizer Counter Volt Peak HP 53131A/132A HP-IB Verification Program Optional HP 53131A/132A HP-IB Verification Program Optional HP 53131A/132A Performance Test Record Page 1 HP 53131A/132A Performance Test Record Page 1 HP 53131A/132A Performance Test Record Page 2 HP 53131A/132A Performance Test Record Page 2 HP 53131A/132A Performance Test Record Page 3 HP 53131A/132A Performance Test Record Page 3 HP 53131A/132A Performance Test Record Page 4 HP 53131A/132A Performance Test Record Page 4 HP 53131A/132A Performance Test Record Page 5 HP 53131A/132A Performance Test Record Page 5 HP 53131A/132A Performance Test Record Page 6 HP 53131A/132A Performance Test Record Page 6 HP 53181A Complete Performance Tests HP 53181A Complete Performance TestsHP 53181A Performance Tests Test 1 Trigger Level HP 53181A Only Test 1 Trigger Level HP 53181A Only 11. Trigger Level Test Setup HP 3325B HP 53181ASynthesizer Counter This is the trigger level it should be 0.0 V ±15 mV Test 2 Channel 1 Frequency Sensitivity HP 53181A Only Test 2 Channel 1 Frequency Sensitivity HP 53181A Only 12. Channels 1 Frequency Sensitivity Test Setup KHz to 100 MHz Sensitivity for HP 53181A Test 2 Channel 1 Frequency Sensitivity HP 53181A Only MHz to 200 MHz Sensitivity for HP 53181A MHz to 225 MHz Sensitivity for HP 53181A Test 3 Channel 1 Frequency Accuracy HP 53181A Only Test 3 Channel 1 Frequency Accuracy HP 53181A Only HP 53181A Counter HP 8663A Synthesized Signal GeneratorSweep Oscillator Test 3 Channel 1 Frequency Accuracy HP 53181A Only Equipment MHz to 1.5 GHz Sensitivity for Option 015 Only 14. Option 015/030/050 Channel 2 Frequency Test MHz to 2.7 GHz Sensitivity for Option 030 Only MHz to 5.0 GHz Sensitivity for Option 050 only MHz to 12.4 GHz Sensitivity for Option 124 only MHz to 1.5 GHz Accuracy Test for Option Connect equipment as shown in Figure Minimum to Maximum Accuracy Test for Options 030/050/124 Verify the HP 53181A Counter reads 100 MHz ±70 mHz Performance Tests Test 6 Peak Volts, Channel 1 HP 53181A Only Test 6 Peak Volts, Channel 1 HP 53181A Only 16. Peak Volts Test Setup HP 53181A HP-IB Verification Program Optional HP 53181A HP-IB Verification Program Optional HP 53181A Performance Test Record Page 1 HP 53181A Performance Test Record Page 1 HP 53181A Performance Test Record Page 2 HP 53181A Performance Test Record Page 2 HP 53181A Performance Test Record Page 3 HP 53181A Performance Test Record Page 3 HP 53181A Performance Test Record Page 4 HP 53181A Performance Test Record Page 4 Service Service Returning the Instrument to Hewlett-Packard for Service Returning the Instrument to Hewlett-Packard for ServiceTo Provide Repair Information To Pack in the Original Packaging Materials To Pack in the Commercially Available Materials Overview of the HP 53131A/132A Calibration Menu About the HP 53131A/132A Calibration MenuAbout the HP 53131A/132A Calibration Menu CAL Unsecure Calibration procedures HP 53131A/132A Calibration Menu Tree To Unsecure for Calibration To View the Calibration Menu and Security StatusTo Initiate the Calibration Routines Information about Calti QUIK? and Calti FINE? About the HP 53131A/132A Calibration Menu HP 8130A HP 53131A/132A Pulse Generator Counter HP 59992A J06 Time Interval Calibrator To Secure Against Calibration To Change to a New Security Code To View the Calibration Count To Get Help with the Calibration Menu HP 53131A/132A Calibration Procedures HP 53131A/132A Calibration ProceduresFirst Determine the Counter Firmware Revision To Calibrate the Offset for Channels 1 BAD Code HP 53131A/132A Calibration Procedures To Calibrate the Gain for Channels 1 DC Power Supply HP 53131A/132A CounterDigital Multimeter To Calibrate Time Interval Press Enter key again CAL TI QUIK? Calibration HP 8130A HP53131A/132A Pulse Generator Counter CAL TI FINE? Calibration HP 8130A Pulse Generator TI CAL Pass To Calibrate the Standard Timebase House Standard MHz Reference HP 53131A/132A Counter To Calibrate the High Stability Timebase Option Medium, High, or Ultra-High Overview of the HP 53181A Calibration Menu About the HP 53181A Calibration MenuAbout the HP 53181A Calibration Menu About the HP 53181A Calibration Menu Key to access this menu HP 53181A Calibration Menu Tree To View the Calibration Menu and Security Status To Initiate the Calibration Routines To Change to New the Security Code HP 53181A Calibration Procedures HP 53181A Calibration ProceduresTo Calibrate the Offset for Channel BAD Code HP 53181A DC Power Supply Counter Digital Multimeter To Calibrate the Gain for Channel House Standard MHz Reference HP 53181A Counter To Calibrate the High Stability Timebase Option Safety Considerations Pre-Troubleshooting InformationPre-Troubleshooting Information Recommended Test Equipment Interruption is Prohibited Disassembly and Reassembly Specifics Repair ConsiderationsElectrostatic Discharge Surface Mount Repair Product Safety Checks After Service ConsiderationsProduct Performance Checks Assembly Identification and Location HP 53131A Assembly Identification 53132-60014 53131-69014 Assembly Name HP Part No Exchange Part A1 Motherboard Series 8A. Instrument Top Internal View 8B. Instrument Top Internal View Option Power Supply Check Troubleshooting the Counter Motherboard Assembly Wire Color Voltage Tolerance A4 AC Power Supply VoltagesOverview of the Self-Test Routines Test Self Tests Diagnosing the Faulty Assembly by UsingTo Run the Test-All Self Test To Run the Individual Self Tests Test Loop to OFF 11B. HP 53181A Self Test Troubleshooting Setup Troubleshooting Failure Indicator Assembly at Fault Replacing Assemblies Replacing Assemblies Do This First Tools RequiredTools Required To Remove the Cover Rear Bezel Removal Bottom View for Cover Removal To Remove the Front Bezel To Remove the Front Bezel Front Bezel Removal To Remove the Front Bezel To Remove A1 Motherboard Assembly To Remove A1 Motherboard Assembly A1 Motherboard Assembly Removal To Remove the A2 Display Board, Keypads, and Window To Remove the A2 Display Board, Keypads, and Window To Remove the A2 Display Board, Keypads, and Window Replacing Assemblies To Remove A3 1.5/3.0/5.0/12.4 GHz Channel Assembly Option015/030/050/124 Optional Channel Input Assembly Removal To Remove A4 AC Power Supply Assembly To Remove A4 AC Power Supply Assembly 10. Location of the Rubber Foot To Remove A5 DC Power Input Assembly Option To Remove A5 DC Power Input Assembly Option 11. DC Power Input Assembly Option 002 Removal Remove the cover Remove A6 High Stability Timebase Assembly To Remove the Rear Terminals Option To Remove the Rear Terminals Option 13. Rear Terminals Option 060 Removal To Remove the Rear Terminals Option To Remove the Rear Terminals Option Retrofitting Options Retrofitting Options Retrofitting Options To Retrofit A5 DC Power Input Assembly Option Option 002 DC Power Input Assembly PartsPreliminary Procedure To Retrofit A5 DC Power Input Assembly Option Retrofitting Procedure 1A. DC Power Input Assembly Retrofitting 1B. DC Power Input Assembly Retrofitting To Retrofit A5 DC Power Input Assembly Option 1C. DC Power Input Assembly Retrofitting 1D. DC Power Input Assembly Retrofitting Dc-supply Option 010 High Stability Timebase Assembly Parts Option 001 Medium Stability Timebase Assembly PartsOption 012 Ultra-High Stability Timebase Assembly Parts Turn off the Counter and remove power cord Remove the cover High Stability Timebase Retrofitting Option 001, 010 Option 060 Rear Terminals Parts To Retrofit the Rear Terminals OptionTo Retrofit the Rear Terminals Option 3A. Plug Removal for Rear Terminals Retrofitting 3B. Rear Terminals Retrofitting To the rear of the chassis To Retrofit the Rear Terminals Option Replaceable Parts Exchange Assemblies Exchange Assemblies Replaceable Parts Reference DesignationsReference Designations How To Order a Part How To Order a PartParts Identification By telephone Contacting Hewlett-PackardFor mail correspondence, use the address below Cabinet Parts and Hardware Cabinet Parts and HardwareReference Designation Mfr Mfr Part Number Code Option MP2 MP3 Manufacturer’s Code List Mfr Code Manufacturer Name Address Zip Code Backdating Older Instruments Manual ChangesInstrument this Guide Directly Applies To Change 2 New A3 5/12.4 GHz Prescaler Assembly Backdating HardwareChange 1 Below Series Prefix 3711A Backdating Hardware 10. A4 AC Power Supply -9V Output Check Option 010/012 Only Change 3 New Tcxo boards Change 4 Series 3710A to 3705A Change 5 Series 3705A to 3546A, 3548A Change 6 Below Series Prefix 3416A Change 7 Below Serial Number 3349A01906 Change 8 Below Serial Prefix 3404A Backdating Firmware About the HP 53131A Calibration MenuChange 1 Firmware Revisions 3317, 3335, 3402 Backdating Firmware HP 53131A Utility/Calibration Menu Tree About the HP 53131A Calibration Menu HP 53131A Calibration Procedures HP 53131A Calibration Procedures DC Power Supply HP 53131A Counter To Calibrate Time Interval Equipment HP 8130A HP53131APulse Generator Counter House Standard MHz Reference HP 53131A Counter Medium or High Backdating Specifications Backdating SpecificationsChange 1 53131A, Serial Prefix 3710A and Below Change 2 53132A, Serial Prefix 3546A and Below Change 3 53181A, Serial Prefix 3711A02841 and Below Backdating Specifications HP 53131A/132A Specifications Channel 1 & 2 Input Characteristics1 Channel 1 & 2 Input Specifications1Instrument Inputs Channel 3 Input Specifications4 Channel 3 Input CharacteristicsExternal Arm Input Specifications External Arm Input Characteristics Time Base Output Specifications Time BaseTime Base Internal Time Base Stability Measurement Specifications Measurement SpecificationsFrequency, Period HP 53131A-Worst Case RMS Resolution Automatic or External Arming HP 53132A-Worst Case RMS Resolution Frequency Measurement Example × Frequency Time Interval LSD Pulse Width PhaseRise/Fall Time Totalize Duty CyclePeak Volts Definitions of Systematic Uncertainty Terms Trigger Error Trigger Level Timing ErrorMeasurement Definitions Measurement Definitions Time Interval Measurement LSD Definition Typical Versus Worst Case SpecificationsAdditional Considerations for Digits and Time Arming Modes Measurement Arming and Processing Measurement Arming and ProcessingGate Time Measurement Throughput Measurement Arming Measurement Statistics Measurement Limits General Information General Information HP 53181A Specifications Channel 1 Input Specifications Channel 1 Input Characteristics Channel 2 Input Specifications3 Channel 2 Input Characteristics Time Base Where N = 1 for Ch1 Frequency 1 MHz Worst Case RMS Resolution Frequency Measurement Example Ratio 1 ⁄ Ch2 Freq × Gate Time Ratio 2 ⁄ Typical Versus Worst Case Specifications Available Statistics Power is removed from the counter General Information Index Index-2 Assembly-Level Service Guide Assembly-Level Service Guide Index-3 Index-4 Assembly-Level Service Guide Contacting Hewlett-Packard Page From front matter Manual Part Number