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Table of Contents
Overview.................................................................................................................................................................................. 7
About This Manual............................................................................................................................................................... 7
Related Documents........................................................................................................................................................... 8
Revisions and Updates.......................................................................................................................................................... 8
Manual.............................................................................................................................................................................. 8
Firmware........................................................................................................................................................................... 8
Safety Considerations ........................................................................................................................................................... 9
Electrostatic Discharge ......................................................................................................................................................... 9
Service Tools and Equipment............................................................................................................................................... 9
Verification and Performance Tests.................................................................................................................................... 11
Operation Verification Tests............................................................................................................................................... 11
Performance Tests .............................................................................................................................................................. 11
Measurement Techniques ............................................................................................................................................... 12
Setup for Most Tests................................................................................................................................................... 12
Current-Monitoring Resistor....................................................................................................................................... 12
Programming .................................................................................................................................................................. 12
Constant Voltage (CV) Tests.......................................................................................................................................... 13
CV Setup..................................................................................................................................................................... 13
Voltage Programming/Readback Accuracy................................................................................................................ 13
CV Load Effect........................................................................................................................................................... 13
CV Source Effect........................................................................................................................................................ 14
CV Noise (PARD) ...................................................................................................................................................... 14
Transient Recovery Time............................................................................................................................................ 14
Constant Current (CC) Tests........................................................................................................................................... 15
CC Setup..................................................................................................................................................................... 15
Current Programming/Readback Accuracy................................................................................................................. 15
CC Load and Line Regulation .................................................................................................................................... 15
CC Load Effect........................................................................................................................................................... 16
CC Source Effect ........................................................................................................................................................ 16
CC Noise (PARD) ...................................................................................................................................................... 17
Troubleshooting.................................................................................................................................................................... 25
Troubleshooting Sequence.................................................................................................................................................. 25
Accessing the Flowcharts.................................................................................................................................................... 25
If You Experienced a Selftest Failure or RunTime Error Message................................................................................. 26
If You Experienced Other Problems With the Module................................................................................................... 26
Test Points .......................................................................................................................................................................... 48
Built-In Test Functions....................................................................................................................................................... 48
EEPROM Troubleshooting and Initialization..................................................................................................................... 51
Troubleshooting.............................................................................................................................................................. 51
Initialization.................................................................................................................................................................... 51
Disassembly Procedures ..................................................................................................................................................... 56
Removing the Module and Module Connector............................................................................................................... 56
Removing the Cover ....................................................................................................................................................... 56
Removing the Fan........................................................................................................................................................... 56
Removing the Front Panel Assembly.............................................................................................................................. 57
Removing the Power Board............................................................................................................................................ 57
Removing the Bias Board............................................................................................................................................... 57
Removing the Front Panel Board.................................................................................................................................... 57