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Unlocking calibration ................................................................. 2-5
Unlocking calibration from the front panel ......................... 2-5
Unlocking calibration by remote ......................................... 2-6
Changing the password ............................................................... 2-7
Changing the password from the front panel ...................... 2-7
Changing the password by remote ...................................... 2-7
Resetting the calibration password ............................................. 2-8
Viewing calibration dates and calibration count ........................ 2-8
Calibration errors ........................................................................ 2-8
Front panel error reporting .................................................. 2-8
Remote error reporting ........................................................ 2-9
Front panel calibration ................................................................ 2-9
Remote calibration .................................................................... 2-18
Remote calibration commands .......................................... 2-18
Recommended calibration parameters .............................. 2-19
Remote calibration procedure ........................................... 2-20
Single-range calibration ............................................................ 2-26
Introduction ................................................................................ 3-2
Line fuse replacement ................................................................. 3-2
Introduction ................................................................................ 4-2
Safety considerations .................................................................. 4-2
Repair considerations ................................................................. 4-2
Power-on self-test ....................................................................... 4-3
Front panel tests .......................................................................... 4-3
KEYS test ............................................................................ 4-3
DISPLAY PATTERNS test ................................................ 4-4
CHAR SET test ................................................................... 4-4
Principles of operation ................................................................ 4-5
Overall block diagram ......................................................... 4-5
Analog circuits .................................................................... 4-7
Power supply ....................................................................... 4-8
Output stage ......................................................................... 4-9
A/D converter .................................................................... 4-11
Active guard ...................................................................... 4-11
Digital circuitry ................................................................. 4-11
Display board circuit theory .............................................. 4-12
Summary of Contents for SourceMeter 2425
Page 3: ...TAIWAN 1FL 85 Po Ai Street Hsinchu Taiwan R O C 886 3 572 9077 Fax 886 3 572 9031...
Page 15: ......
Page 16: ...1 PerformanceVerification...
Page 35: ...1 20 Performance Verification Model 2425 Service Manual...
Page 36: ...2 Calibration...
Page 62: ...3 RoutineMaintenance...
Page 65: ...3 4 Routine Maintenance Model 2425 Service Manual...
Page 66: ...4 Troubleshooting...
Page 84: ...5 Disassembly...
Page 92: ...6 ReplacementParts...
Page 113: ...6 22 Replacement Parts Model 2425 Service Manual...
Page 114: ...A Specifications...
Page 116: ...B CommandReference...
Page 128: ...C CalibrationPrograms...
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