3458A Adjustments/Calibration; Adjustments/Calibration Needed After Assembly - Keysight 3458A Assembly-Level Repair Manual

4 Assembly Level Troubleshooting

3458A Adjustments/Calibration

Instrument adjustments/calibration must be performed whenever a printed circuit
board assembly has been replaced or removed from the instrument. Removal or
replacement of some assemblies only requires internal calibration (by executing
the "ACAL ALL" command). Others need complete adjustments (for example,
Offset, DC Gain, etc.). It is also good practice to execute the "ACAL ALL"
command after the covers have been removed and replaced on the instrument.
Table 4-1
after assembly replacement. For information on how to adjust/calibrate the
3458A, refer to the 3458A Calibration Manual.
Table 4-1
Ref
desig.
A1
A2
A3
A4
A5
A5
A6
A7
A9
A9
A10
112
lists the 3458A assemblies and the required adjustments/calibration
Adjustments/Calibration needed after assembly replacement
Keysight part
Assembly description
number
03458-66501 DC circuitry
03458-66502 AC converter
03458-66503 A/D converter and inguard logic
03458-66504 Inguard power supply
03458-66505 Outguard controller
03458-66515 Outguard controller (Opt 001)
03458-66506 Outguard power supply
03458-66507 Display logic
03458-66509 DC reference
03458-66519 DC reference (Opt 002)
03458-66510 Front/rear switch
Ad justments needed
Offset, DC Gain, Resistance, and DC
Current Adjustments
AC Adjustment
Offset, DC Gain, Resistance, DC
Current, and AC Adjustments
ACAL ALL
Offset, DC Gain, Resistance, DC
Current, and AC Adjustments
Offset, DC Gain, Resistance, DC
Current, and AC Adjustments
ACAL ALL
ACAL ALL
Offset, DC Gain, Resistance, and DC
Current Adjustments
Offset, DC Gain, Resistance, and DC
Current Adjustments
Offset Adjustments, ACAL ALL
Keysight 3458A Assembly-Level Repair Manual