Agilent Technologies AGILENT MODELS 6023A and 6028A specs

Table 5-7. Other Replacement Assemblies (continued)

Ref. Desig.	Agilent Model		Agilent Part Number		Description
	All		4040-1954		Window, display
	6023A		5020-8847		Trim strip
	All		5041-8803		Trim strip, top
	All		5001-0540		Trim, side 7in
	All		5021-8417		Frame front
	All		5041-8801		Foot
	All		5041-8819		Retainer, strap handle
	All		5041-8820		Retainer, strap handle
	All		5041-0309		Key cap, quarter
	All		5062-3703		Assembly, handle strap
	All		7120-1254		Nameplate
	All		7120-8572		Canadian Standards Association Label (ref.
					rear panel)
	All		7121-2527		Metric and Inch Label (ref. rear panel)
	All		7121-2794		Serial Identification Label (ref. rear panel)
	6023A		06023-00016		Chassis
	6028A		06023-00001		Chassis
	All		06023-00020		Cover, top
	All		06023-00022		Cover, bottom
	6023A		06023-00004		Bracket, upper
	6023A		06023-00014		Panel, sub
	6023A		06023-00018		Sub panel, front
	6023A		06023-00007		Bus bar, negative
	6023A		06023-00008		Bus bar, positive
	All		06023-00009		Cover, bar block
	6023A		06023-00010		Cover,(top plate screened)
	6028A		06023-00026		Cover,(top plate screened)
	6023A		06023-00019		Rear panel, screened
	6028A		06023-00011		Rear panel, screened
	All		06028-00021		Front-panel, screened
	All		06023-81003		Line Voltage Label (ref. rear panel) 28480
	6023A		06023-90001		Operating and Service manual
	6028A		06028-90001		Operating and Service manual
	6023A		1990-0521		Cover, terminal block
			Option 220 (220V Operation)
	All		2110-0055		Fuse 4A 250V (rear chassis)
	All		2110-0055		Fuse 4A 250V (rear chassis)
	All		2110-0383		Fuse 8A 250V (rear chassis)
	All		7120-8572		Label, info
	All		06023-81001		Label, info
			Option 240 (240V Operation)
	All		2110-0055		Fuse 4A 250V (rear chassis)
	All		2110-0055		Fuse 4A 250V (rear chassis)
	All		2110-0383		Fuse 8A 250V (rear chassis)
	All		7120-8572		Label, info
	All		06023-81002		Label, info

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Agilent Technologies AGILENT MODELS 6023A and 6028A service manual Option 220 220V Operation, Option 240 240V Operation

Contents

Autoranging Certification Safety Summary Safety Symbol Definitions Printing History Table of Contents Replaceable Parts Troubleshooting Circuit DiagramsSafety Considerations Scope Manual Revisions Item Description Calibration Procedure IntroductionTest Equipment Required Operation Verification Tests Type Required Characteristics USE Recommended Model Test Equipment Required Initial Setup 1KVA Calibration Procedure MON Vout Iout CR7 Performance TestsMeasurement Techniques Current-Monitoring Resistor Setup Constant Voltage CV Tests Basic Test Setup RMS Measurement Test Setup, CV Pard Test Peak-To-Peak Measurement Test Setup, CV Pard Test 6023A 6028A KHz Noise, CV Peak-to-Peak Pard Load Transient Recovery Waveform Constant Current CC Tests CC Pard Test Setup Troubleshooting Initial Troubleshooting Procedures Control Board Test Connector, A2J7 PIN no Signal NameVdc WAVEFORM/CONDITIONS Source Repair and Replacement Electrostatic Protection A2 Control Board Removal A4 Power Mesh Board Removal Overall Troubleshooting ProcedureA3 Front-Panel Board Removal A1 Main Board Removal Using the Tables SetupNode Measurement Main Troubleshooting Setup Main Troubleshooting Setup Modified Mains Cord Set For Troubleshooting Troubleshooting No-Output Failures Front-Panel Troubleshooting Board PWM-ON PWM-OFF Defective Check Functional CircuitsA2J7-26 A2J7-25 Troubleshooting Bias Supplies Symptoms Defective Circuit Check ComponentsSymptoms Defective Check Functional Circuits Board Node + Measurement Source Node + N0DE Node +Measurement Source Power Section Blocks Troubleshooting AC-Turn-on CircuitsSetup Measurement Source Setup Measurement Power Limit Troubleshooting PWM & ClockRelay Enable Troubleshooting DC-To-DC Converter + OUTPWM-ON PWM-OFF Troubleshooting CV Circuit Troubleshooting CC Circuit A4U4OUT Troubleshooting Down ProgrammerTroubleshooting OVP Circuit Waveforms SET Voltage Vdc Node + Page Autoranging Power Block Diagram Overview Block Diagram Simplified Schematic Simplified Schematic DC-to-DC Converter Down Programmer Pfet Control Signals Timing Diagram Constant-Voltage CV Circuit Power-Limit Comparator Constant-Current CC CircuitOvervoltage Protection OVP Circuit Control-Voltage Comparator Initial-Ramp Circuit Pulse-Width Modulator PWMBias Voltage Detector AC-Surge Dropout Detector Second-Delay Circuit Display CircuitsPage Replaceable Parts Reference Designators Ordering Information Description Abbreviations Electrical Parts CR1CR2 CR3 Mechanical Parts XA2P1XA2P2 Control Board Assembly CR3 Page Page Page VR5 VR3VR4 DS5 CR5DS1 VR2 IC A/D Cmos 3-1/2 DGTVR1 NPN SI Pfet TS1 Chassis Electrical A1TB1 A2 Board Mechanical PartsA3 Board Mechanical Parts A4 Board Mechanical Parts Option 220 220V Operation Option 240 240V Operation Component 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 Option 002 Hardware SpecificationsGeneral Information Table A-1. Specifications, Option Remote Programming Input Compliance Voltage ± Current Programming EnableOutput Impedance 10.2 k ohm ± 5% Temperature Coefficient Status Indicators Remote Trip and Remote Reset Timing Power-on PresetMaximum Output Voltage logic high + On State logic low Table A-1. Specifications, Option Pulse Timing Bias Supplies DC Output Ratings 25C ±Short Circuit Output Current Pard Typical Installation Connector Assembly Procedure Figure A-1. Mating Connector Assembly Operation Local/Remote Programming Resistance Voltage or Current Remote Resistance Programming Figure A-4. Calculating Value of Series Dropping Resistor Figure A-5. Remote Resistance Programming Remote Monitoring Status Indicators Remote Control Remote Reset Overvoltage Power-On Preset Figure A-8. Remote Control AC Dropout Buffer Circuit Multiple Supply System Shutdown Maintenance Bias Supplies Troubleshooting Resistance and Voltage Programming Troubleshooting Current Programming Figure A-11. Troubleshooting Current Programming of CV Mode Figure A-13. Troubleshooting Status Indicators Page Table A-3. Replacement Parts REF. Desig Model no Description 100 VR9 101 Indicator and Qualifier Symbols OLD Symbol NEW SymbolLogic Symbols and Definitions 102 Definitions Schematic Notes Schematic Diagram Notes 103 Schematic Notes Figure A-15. Option 002 Board, Component Location 104 Figure A-16. Option 002 Board, Schematic Diagram 105 Page 107 Model 6023AModel 6028A From 108