Keysight E4980A Service Manual page 112

Post-Repair Procedures
Post-Repair Procedures
Table 7-1 Post-Repair Procedures
Replaced
Assembly or Part
A2 Analog Board
A3 Analog Board
USB Board
112
Required Adjustments
Correction Constants (CC)
Perform the following required
adjustments using "A2 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
Perform the following required
adjustments using "A3 Board" in Spot
Adjustment of the program.
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
No adjustment needed
Verification
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)
Inspect the booting process, and power on
test result.
Frequency Accuracy Test
DC Source Level Monitor Accuracy Test (for
opt 001)
DC Bias Level Accuracy Test (for opt 001)
AC Signal Level Accuracy Test
Impedance Measurement Accuracy Test
DCR Measurement Accuracy Test (for opt
001)
Inspect the booting process, and power on
test result.
"To Check the Front USB port" on
page 49
Keysight E4980A/E4980AL Precision LCR Meter