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CV/CC Status Annunciators Troubleshooting 34
Bias and Reference Supplies 34
J307 Voltage Measurements 35
Manual Fan Speed Control 36
Disabling Protection Features 36
Post-repair Calibration 37
Inhibit Calibration Switch 37
Calibration Password 37
Initialization 38
ROM Upgrade 38
Identifying the Firmware 38
Upgrade Procedure 38
Disassembly Procedures 39
List of Required Tools 39
Cover, Removal and Replacement 40
A2 Interface Board, Removal and Replacement 40
Front Panel Assembly, Removal and Replacement 40
A3 Front Panel Board, Removal and Replacement 41
A1 Main Control Board 41
T1 Power Transformer, Removal and Replacement 41
Line Voltage Wiring 42
PRINCIPLES OF OPERATION 43
Introduction 43
I/O Interface Signals 43
A3 Front Panel Circuits 44
A2 Interface Circuits 44
Primary Interface 44
Secondary Interface 44
A1 Main Board Circuits 45
Power Circuits 45
Control Circuits 46
REPLACEABLE PARTS LIST 49
Introduction 49
DIAGRAMS 53
Introduction 53
INDEX 57