Manuals / Agilent Technologies / Computer Equipment / Power Supply

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

Models: AGILENT MODELS 6023A and 6028A

1 108

Download 108 pages 23.7 Kb

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

Image 99

Agilent Technologies AGILENT MODELS 6023A and 6028A Table A-3. Replacement Parts, REF. Desig Model no Description

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