Agilent Technologies AGILENT MODELS 6023A and 6028A service manual Table A-3. Replacement Parts

Page 99

Table A-3. Replacement Parts

REF. DESIG.

MODEL NO.

PART NO.

DESCRIPTION

A7

All

5060-2854

Opt. 002 Interface Board

C1,2

All

0180-0230

fxd elect. 1∝F 20% 50V

C3

All

0180-2825

fxd elect. 22∝F 50V

C4

All

0160-4835

fxd cer. 0.1∝F 10% 50V

C5

All

0160-4554

fxd cer. 0.0∝F 20% 50V

C6

All

0160-4835

fxd cer. 0.1∝F l0% 50V

C7

All

0160-4554

fxd cer. 0.0∝F 20% 50V

C8,9

All

0180-0230

fxd elect. 1∝F 20% 50V

C10

All

0180-2825

fxd elect. 22∝F 50V

C11

All

0160-4801

fxd cer. 100pf 5% l00V

C12,13

All

0160-5422

fxd cer. 0.047∝F 20% 50V

C14

All

0160-4801

fxd cer. 100pfF 5% l00V

C15

All

0160-5422

fxd cer. 0.047∝F 20% 50V

C16

All

0160-5422

fxd cer. 0.047∝F 20% 50V

C17,18

All

0180-0230

fxd elect. 1∝F 20% 50V

C19

All

0180-2825

fxd elect. 22∝F 50V

C20-22

All

0160-0128

fxd cer. 2.2∝F 20% 50V

CR1-4

All

1901-0050

switching 80V 200ma

CR5-10

All

1901-0327

pwr. rect. 300V 40A

CR11-14

All

1901-0033

gen. prp. 180V 200ma

CR15

All

1901-0327

zener 9.09V 10% PD=1.5W

CR16,17

All

 

NOT USED

CR18,19

All

1901-0050

switching 80V 200ma

CR20

All

1901-0033

gen. prp. 180V 200ma

CR21,22

All

1901-0050

switching 80V 200ma

CR23

All

1901-0033

gen. prp. 180V 200ma

CR24,25

All

1901-0050

switching 80V 200ma

CR26-29

All

1901-0033

gen. prp. 180V 200ma

CR30

All

1901-0327

zener 9.09V 10% PD=1.5W

K1,2

All

0490-1418

relay 250ma 28V,5V –coil 3VA

L1-3

All

9170-1223

core shielding bead

Q1,2

All

1854-0823

NPN SI PD=300mW FT=200MHZ

R1-3

All

0683-2015

fxd. film 200 5% 1/4W

R4

All

0683-3925

fxd. film 3.9K 5% 1/4W

R5

All

0683-2035

fxd. film 20K 5% 1/4W

R6

All

0683-3035

fxd. film 30K 5% 1/4W

R7

All

0683-6225

fxd. film 6.2K 5% 1/4W

R8,9

All

0683-2035

fxd. film 20K 5% 1/4W

R10

All

0683-1035

fxd. film 10K 5% 1/4W

R11

All

0683-5125

fxd. film 5.1K 5% 1/4W

R12

All

0757-0984

fxd. film 10 1% 1/2W

R13

All

0683-1615

fxd. film 160 5% 1/4W

R14

All

0683-4715

fxd. film 410 5% 1/4W

R15,16

All

0683-1235

fxd. film 12K 5% 1/4W

R17

All

0686-1525

fxd. film 1.5K 5% 1/4W

R18

All

0683-1535

fxd. film 15K 5% 1/4W

R19

All

0683-4715

fxd. film 470 5% 1/4W

R20,21

All

0683-1235

fxd. film 12K 5% 1/4W

99

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Contents Autoranging Certification Safety Summary Printing History Safety Symbol DefinitionsTable of Contents Replaceable Parts Scope TroubleshootingCircuit Diagrams Safety ConsiderationsItem Description Manual RevisionsOperation Verification Tests Calibration ProcedureIntroduction Test Equipment RequiredTest Equipment Required Type Required Characteristics USE Recommended Model1KVA Initial SetupMON Calibration ProcedureIout VoutPerformance Tests Measurement TechniquesCR7 Constant Voltage CV Tests Current-Monitoring Resistor SetupBasic Test Setup RMS Measurement Test Setup, CV Pard Test Peak-To-Peak Measurement Test Setup, CV Pard Test KHz Noise, CV Peak-to-Peak Pard 6023A 6028ALoad Transient Recovery Waveform Constant Current CC Tests CC Pard Test Setup Initial Troubleshooting Procedures TroubleshootingWAVEFORM/CONDITIONS Source Control Board Test Connector, A2J7PIN no Signal Name VdcElectrostatic Protection Repair and ReplacementA2 Control Board Removal A1 Main Board Removal A4 Power Mesh Board RemovalOverall Troubleshooting Procedure A3 Front-Panel Board RemovalMeasurement Using the TablesSetup NodeMain Troubleshooting Setup Main Troubleshooting SetupModified Mains Cord Set For Troubleshooting Front-Panel Troubleshooting Troubleshooting No-Output FailuresPWM-ON PWM-OFF Defective Check Functional Circuits A2J7-26 A2J7-25Board Node + Measurement Source Troubleshooting Bias SuppliesSymptoms Defective Circuit Check Components Symptoms Defective Check Functional Circuits BoardNode + Measurement SourceNode + N0DE Setup Measurement Power Section BlocksTroubleshooting AC-Turn-on Circuits Setup Measurement SourceTroubleshooting PWM & Clock Relay EnablePower Limit PWM-OFF Troubleshooting DC-To-DC Converter+ OUT PWM-ONTroubleshooting CC Circuit Troubleshooting CV CircuitTroubleshooting Down Programmer Troubleshooting OVP CircuitA4U4OUT Waveforms SET Voltage Vdc Node + Page Block Diagram Overview Autoranging PowerBlock Diagram Simplified Schematic Simplified Schematic Down Programmer DC-to-DC ConverterConstant-Voltage CV Circuit Pfet Control Signals Timing DiagramControl-Voltage Comparator Power-Limit ComparatorConstant-Current CC Circuit Overvoltage Protection OVP CircuitAC-Surge Dropout Detector Initial-Ramp CircuitPulse-Width Modulator PWM Bias Voltage DetectorDisplay Circuits Second-Delay CircuitPage Reference Designators Replaceable PartsDescription Abbreviations Ordering InformationCR3 Electrical PartsCR1 CR2XA2P1 XA2P2Mechanical Parts Control Board Assembly CR3 Page Page Page VR3 VR4VR5 CR5 DS1DS5 IC A/D Cmos 3-1/2 DGT VR1VR2 Pfet NPN SIChassis Electrical TS1A4 Board Mechanical Parts A1TB1A2 Board Mechanical Parts A3 Board Mechanical PartsOption 240 240V Operation Option 220 220V OperationComponent Location and Circuit Diagrams Schematic Diagram Notes Pin locations for other semi-conductors are shown below Top View, Top Covers Removed Main Board A1 Component Location Control Board A2 Component Location Front-Panel Board A3 Component Location Power Mesh Board A4 Component Location Page Page Specifications General InformationOption 002 Hardware Status Indicators Table A-1. Specifications, Option Remote ProgrammingInput Compliance Voltage ± Current Programming Enable Output Impedance 10.2 k ohm ± 5% Temperature CoefficientOn State logic low Remote Trip and Remote Reset TimingPower-on Preset Maximum Output Voltage logic high +Pard Typical Table A-1. Specifications, Option Pulse TimingBias Supplies DC Output Ratings 25C ± Short Circuit Output CurrentConnector Assembly Procedure InstallationOperation Figure A-1. Mating Connector AssemblyLocal/Remote Programming Resistance Voltage or Current Figure A-4. Calculating Value of Series Dropping Resistor Remote Resistance ProgrammingFigure A-5. Remote Resistance Programming Remote Monitoring Remote Control Status IndicatorsOvervoltage Remote ResetFigure A-8. Remote Control Power-On PresetMultiple Supply System Shutdown AC Dropout Buffer CircuitBias Supplies MaintenanceTroubleshooting Current Programming Troubleshooting Resistance and Voltage ProgrammingFigure A-11. Troubleshooting Current Programming of CV Mode Figure A-13. Troubleshooting Status Indicators Page REF. Desig Model no Description Table A-3. Replacement Parts100 101 VR9Definitions Indicator and Qualifier SymbolsOLD Symbol NEW Symbol Logic Symbols and Definitions 102Schematic Diagram Notes 103 Schematic NotesFigure A-15. Option 002 Board, Component Location 104 Schematic NotesFigure A-16. Option 002 Board, Schematic Diagram 105 Page Model 6023A Model 6028A107 108 From
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