Keysight Technologies E4981A, Service Manual

Page: 130 / 152

128 Chapter 7
Post-Repair Procedures
Post-Repair Procedures
Post-Repair Procedures
Table 7-1 Post Repair Procedures lists the required procedures that must be performed
after the replacement of an assembly. These are the recommended minimum procedures to
ensure that the replacement is successfully completed.
Table 7-1 Post-Repair Procedures
Replaced
Assembly or Part
Required Adjustments
Correction Constants (CC)
Verification
P1001
INSTALLED OS
(E4980-62004) Perform the following required
adjustments using “PPMC” in Spot
Adjustment of the program.
Power On Test Limit
Inspect the booting process, and power on
test result.
A31 Digital Board Perform the following required
adjustments using “Write ID” in Spot
Adjustment of the program.
Write ID
Inspect the booting process, and power on
test result.
A34 Analog Board Perform the following required
adjustments using “A34 Board” in Spot
Adjustment of the program.
Write Null phase track default data
Null DC offset Adjustment
Null ADC DC offset Adjustment
ADC Linearity Adjustment
DC Bias Adjustment
DC level V monitor Adjustment (for
opt 001)
DC level I monitor Adjustment (for opt
001)
DC Source Adjustment (for opt 001)
DCR Adjustment (for opt 001)
Impedance Adjustment
AC Level monitor Adjustment
OSC Level Adjustment
Inspect the booting process, and power on
test result.
DC Bias V Level Monitor Accuracy Test (for
opt 001)
DC Bias I Level Monitor Accuracy Test (for opt
001)
AC Signal Level Monitor Accuracy Test
Impedance Measurement Accuracy Test
DCR Measurement Accuracy Test (for opt 001)
USB Assembly No adjustment needed Inspect the booting process, and power on
test result.
“To Check the Front USB port” on page 56
PSU Assembly No adjustment needed Inspect the booting process, and power on
test result.
Fan Assembly No adjustment needed Inspect the booting process, and power on
test result.