Table of Contents
Introduction ............................................................................................................................................................................ 7
Scope .................................................................................................................................................................................. 7
Organization..................................................................................................................................................................... 7
Related Documents .......................................................................................................................................................... 7
Change Sheet................................................................................................................................................................. 7
Operating Manual.......................................................................................................................................................... 7
Instrument Identification..................................................................................................................................................... 8
Manual Revisions............................................................................................................................................................. 8
Firmware Revisions.......................................................................................................................................................... 8
Safety Considerations ......................................................................................................................................................... 8
Conventions ........................................................................................................................................................................ 9
Electrostatic Discharge ....................................................................................................................................................... 9
Verification............................................................................................................................................................................ 11
Introduction....................................................................................................................................................................... 11
Tests.................................................................................................................................................................................. 11
Test Equipment Required.................................................................................................................................................. 11
List of Equipment........................................................................................................................................................... 11
Current-Monitoring Resistor.......................................................................................................................................... 11
Electronic Load.............................................................................................................................................................. 12
Programming The Tests.................................................................................................................................................... 13
General Considerations.................................................................................................................................................. 13
Programming Parameters............................................................................................................................................ 13
General Measurement Techniques.................................................................................................................................... 13
Performance Test Record Sheets ...................................................................................................................................... 13
Operation Verification Tests............................................................................................................................................. 14
Performance Tests............................................................................................................................................................. 15
Constant Voltage (CV) Tests......................................................................................................................................... 15
Test Setup.................................................................................................................................................................... 15
Test Procedures........................................................................................................................................................... 15
Constant Current (CC) Tests.......................................................................................................................................... 19
Test Setup.................................................................................................................................................................... 19
Test Procedures........................................................................................................................................................... 19
Averaging the CC Measurements................................................................................................................................... 22
Troubleshooting.................................................................................................................................................................... 29
Introduction....................................................................................................................................................................... 29
Localizing the Problem.................................................................................................................................................. 29
Chapter Organization..................................................................................................................................................... 29
Test Equipment Required.................................................................................................................................................. 30
Troubleshooting Procedures ............................................................................................................................................. 30
Power-On Selftest .......................................................................................................................................................... 30
Description.................................................................................................................................................................. 30
Disabling The Power-On Selftest................................................................................................................................ 30
Using the *TST? Query (GPIB Systems Supplies Only) ............................................................................................ 30
Troubleshooting Charts.................................................................................................................................................. 32
Troubleshooting Test Points .......................................................................................................................................... 32
Bias and Reference Supplies.......................................................................................................................................... 32
CV/CC Status Annunciators Troubleshooting................................................................................................................ 53
A5 Control Board Troubleshooting Setup ..................................................................................................................... 53
A3 FET Board Troubleshooting .................................................................................................................................... 53
Signature Analysis ............................................................................................................................................................ 56
Introduction.................................................................................................................................................................... 56
Firmware Revisions........................................................................................................................................................ 56
Test Headers .................................................................................................................................................................. 56
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