5080A
Service Manual
ii
Low Resistance Source (LVR) Verification .................................... 30
High Resistance Source (HVR) Verification .................................. 31
Scope Option Verification Tables ...................................................... 33
Mainframe Calibration ........................................................................... 43
Required Calibration Test Equipment ................................................ 44
Start Calibration ................................................................................. 44
DC Volts Calibration (NORMAL Output) ............................................ 45
AC Volts Calibration (NORMAL Output) ............................................ 46
DC Current Calibration ...................................................................... 48
AC Current Calibration ...................................................................... 50
DC Volts Calibration (AUX Output) .................................................... 54
AC Volts Calibration (AUX Output) .................................................... 55
Resistance Calibration ....................................................................... 55
SC200 Calibration ................................................................................. 57
Required Test Equipment .................................................................. 57
Calibration Steps ............................................................................... 60
SC200 Hardware Adjustments .......................................................... 65
MEGOHM Option Calibration ................................................................ 69
Required Test Equipment .................................................................. 69
Calibration Steps ............................................................................... 69
Calibrate Through the Remote Interface ............................................... 74
Remote Commands ........................................................................... 75
Generating a Calibration Report ........................................................ 80
General Maintenance ............................................................................ 80
Clean Outside Surfaces ..................................................................... 80
Replace the Line Fuse ....................................................................... 80
Replace the Current Fuses ................................................................ 82
Clean the Air Filter ............................................................................. 84
Access Procedure ................................................................................. 87
Analog Modules ................................................................................. 87
Rear-Panel Assemblies ..................................................................... 89
Main CPU (A9) .................................................................................. 91
Filter PCA (A12) ................................................................................ 93
Encoder/Display PCA (A2) ................................................................ 95
Output Block PCA (A16) .................................................................... 97
Replaceable Parts ................................................................................. 98
How to Obtain Parts .......................................................................... 98
Parts .................................................................................................. 99
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