HP 1GSa/s Digitizing Oscilloscope 16532A manual Oscilloscope Module Removal and Replacement

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HP 16532A - Service

6-9. Oscilloscope Module Removal and Replacement

The effects of ELECTROSTATIC DISCHARGE can damage electronic compo- nents. Use grounded wrist straps and mats when you are performing any kind of service on this module.

When you need to remove and replace a module, test the module first to determine the faulty part. If either of the trigger cables are faulty, remove the faulty cable and replace it with a new one. Refer to para- graph 6-10 for procedures to remove and replace a faulty cable. If either of the attenuators are faulty, re- move the faulty attenuator and replace it with a new one. Refer to paragraph 6-11 for procedures to re- move and replace a faulty attenuator.

Oscilloscope Module Removal Procedure:

Do not install, remove or replace the module in the instrument unless the instru- ment power is turned off.

1.Turn off the instrument power switch, unplug the power cord, and disconnect any input or output connections.

2.Starting from the top, loosen the thumb screws on the filler panels and the cards. See figure 6-11.

Figure 6-11. Endplate Overlap - Top Sequence

3.Starting from the top, pull out the cards and the filler panels halfway.

4.Pull out the oscilloscope module completely.

6-18

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Contents HP 16532A Safety Considerations Safety SymbolsContents Service CalibrationSection Replaceable Parts List of Tables Page Table of Contents Page Safety Requirements IntroductionModule Covered by This Manual Accessories Supplied Accessories AvailableSpecifications Operating CharacteristicsHP 16532A Specifications Rise Time2 1.4 nsWaveform Record Length 8000 points Vertical dc Gain Accuracy4 ± 1.5% of full scaleHP 16532A Operating Characteristics Vertical at BNCTimebase Triggering DigitizerTrigger Level Range Trigger ModesWaveform Display Display ModesMeasurement Aids Setup Aids Operating EnvironmentEquipment Critical Specifications Recommended Model USE Page Table of Contents Page Power Requirements Initial Inspection Safety RequirementsModule Installation Preparation for UseInstallation Considerations ProcedureEndplate Overlap Bottom Sequence Tagging for Service Operating EnvironmentStorage PackagingTable of Contents Page Performance Test Procedures Test RecordPerformance Test Interval DC CAL Output Test AC CAL Output Test Specification Equipment Required Critical Specification Model/Part NumberInput Resistance Page Voltage Measurement Accuracy Voltage Measurement Accuracy Test Div Offset Supply Upper Limit Lower Limit Procedure Zero-Input Offset Offset AccuracyDC Input Offset Div Offset Supply Min MaxBandwidth V1MHz Time Measurement Accuracy Menu Selection Setting Trigger Sensitivity RUN Repetitive Performance Test Record Paragraph No Test Results Yes No Page Table of Contents Page Calibration Protection Switch Calibration IntervalMaintaining System Integrity Instrument Warmup CalibrationSetting the PROTECT/UNPROTECT Switch to Unprotect Location of the PROTECT/UNPROTECT SwitchLoading the Default Calibration Factors Equipment Required for CalibrationCalibrate Delay of the Self Cal menu as follows Self Cal Menu CalibrationsCalibrate Vert Cal of the Self Cal menu as follows Calibrate the Time Null of the Self Cal menu as follows Calibrate the Logic Trigger of the Self Cal menu as followsCalibrate the Ext Trig Null of the Self Cal menu as follows Ext Trig Null Calibration ConnectionsSetting the PROTECT/UNPROTECT Switch to Protect Sealing the MainframeTable of Contents Page Replaceable Parts List AbbreviationsOrdering Information Exchange AssembliesDirect Mail Order System Reference Designator and Abbreviations Parts Identification Reference Designator HP Part Qty NumberDescription Mfr Code Mfr Part NumberPage Table of Contents Page Introduction Safety Requirements Module Block Diagram and The- ory of OperationMain Assembly Theory of Operation Attenuator Theory of OperationHP 16532A Oscilloscope Block Diagram Page Self-Test Access Procedure Self-TestsLoad Test System Screen Functional Tests Screen Touch the Functional Tests fieldA/D Test Run Screen Exit Test System Screen Self-Test Descriptions Data Memory TestTimebase Test TestTroubleshooting Troubleshooting AidsVerifying the System Clock Page Troubleshooting E E T Troubleshooting Sheet1 6 5 3 2 a Troubleshooting E E T Troubleshooting E E T Troubleshooting E E T Troubleshooting E E T Oscilloscope Module Removal and Replacement Oscilloscope Module Removal ProcedureOscilloscope Module Replacement Procedure 12. Endplate Overlap Bottom SequenceTrigger Cable Removal and Replacement Trigger Cable Removal ProcedureAttenuator Removal and Replacement Trigger Cable Replacement ProcedureAttenuator Removal Procedure Attenuator Replacement Procedure Warranty CertificationAssistance