HP 1GSa/s Digitizing Oscilloscope 16532A manual Trigger Sensitivity

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HP 16532A - Performance Tests

3-13. TRIGGER SENSITIVITY

This test checks channel triggers for sensitivity at rated bandwidth.

Specification:

dc to 50 MHz : 0.063 x full scale (0.25 division)

50 to 250 MHz : 0.125 x full scale (0.5 division)

Equipment Required:

The following equipment is required for this test. Procedures are based on the model or part number rec- ommended.

			Recommended
Equipment Required		Critical Specification	Model/Part Number

Signal Generator	50 and 250 MHz, 30-80 mV rms output		HP 8656B Opt. 001
Cable	50	Ω BNC 48-inch	HP 10503B
Adapter	50	Ω Type N (m) to BNC (f)	HP 1250-0780

Procedure:

1.In the Waveform Selection menu delete channel 2. If channel 1 is not inserted, insert channel 1. On the oscilloscope module set the following parameters in the order given:

	Menu		Selection		Setting

Channel		Input		1
		Probe		1:1
		v/Div		400 mV
		Offset		0 V
		Coupling		50	Ω / DC
		s/Div		20 ns
Trigger		Mode		Edge
		Source		Chan 1
		Level		0 V
Display		Mode		Average
		Average #		8
		Grid		On
		Markers		Off

2. With an N-to-BNC adapter and BNC cable, connect the signal generator to channel 1 input.

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Contents HP 16532A Safety Symbols Safety ConsiderationsContents Section Replaceable Parts ServiceCalibration List of Tables Page Table of Contents Page Module Covered by This Manual Safety RequirementsIntroduction Accessories Available Accessories SuppliedSpecifications Operating CharacteristicsRise Time2 1.4 ns HP 16532A SpecificationsWaveform Record Length 8000 points Vertical dc Gain Accuracy4 ± 1.5% of full scaleTimebase HP 16532A Operating CharacteristicsVertical at BNC Digitizer TriggeringTrigger Level Range Trigger ModesDisplay Modes Waveform DisplayMeasurement Aids Operating Environment Setup AidsEquipment Critical Specifications Recommended Model USE Page Table of Contents Page Initial Inspection Safety Requirements Power RequirementsModule Installation Preparation for UseProcedure Installation ConsiderationsEndplate Overlap Bottom Sequence Operating Environment Tagging for ServiceStorage PackagingTable of Contents Page Performance Test Interval Performance Test ProceduresTest Record DC CAL Output Test AC CAL Output Test Input Resistance SpecificationEquipment Required Critical Specification Model/Part Number Page Voltage Measurement Accuracy Voltage Measurement Accuracy Test Div Offset Supply Upper Limit Lower Limit Offset Accuracy Procedure Zero-Input OffsetDiv Offset Supply Min Max DC Input OffsetBandwidth 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 Maintaining System Integrity Calibration Protection SwitchCalibration Interval Calibration Instrument WarmupLocation of the PROTECT/UNPROTECT Switch Setting the PROTECT/UNPROTECT Switch to UnprotectEquipment Required for Calibration Loading the Default Calibration FactorsCalibrate Vert Cal of the Self Cal menu as follows Calibrate Delay of the Self Cal menu as followsSelf Cal Menu Calibrations Calibrate the Logic Trigger of the Self Cal menu as follows Calibrate the Time Null of the Self Cal menu as followsExt Trig Null Calibration Connections Calibrate the Ext Trig Null of the Self Cal menu as followsSealing the Mainframe Setting the PROTECT/UNPROTECT Switch to ProtectTable of Contents Page Abbreviations Replaceable Parts ListOrdering Information Exchange AssembliesDirect Mail Order System Reference Designator and Abbreviations Parts Identification HP Part Qty Number Reference DesignatorDescription Mfr Code Mfr Part NumberPage Table of Contents Page Module Block Diagram and The- ory of Operation Introduction Safety RequirementsMain Assembly Theory of Operation Attenuator Theory of OperationHP 16532A Oscilloscope Block Diagram Page Self-Tests Self-Test Access ProcedureLoad Test System Screen Touch the Functional Tests field Functional Tests ScreenA/D Test Run Screen Exit Test System Screen Data Memory Test Self-Test DescriptionsTimebase Test TestTroubleshooting Aids TroubleshootingVerifying the System Clock Page 1 6 5 3 2 a Troubleshooting E E TTroubleshooting Sheet Troubleshooting E E T Troubleshooting E E T Troubleshooting E E T Troubleshooting E E T Oscilloscope Module Removal Procedure Oscilloscope Module Removal and Replacement12. Endplate Overlap Bottom Sequence Oscilloscope Module Replacement ProcedureTrigger Cable Removal Procedure Trigger Cable Removal and ReplacementAttenuator Removal Procedure Attenuator Removal and ReplacementTrigger Cable Replacement Procedure Attenuator Replacement Procedure Assistance WarrantyCertification