Agilent Technologies E4991A Service Manual page 309

Table 8-1 Post-Repair Procedures
Replaced Required Adjustments
Assembly or Part Correction Constants (CC)
Perform the following required
A4 Receiver Board
adjustments using the A4 Adjustment
and A2 Adjustment(Opt.001) in Spot
Adjustment of the program.
A4 Local AGC Gain Adjustment
A4 Local level Adjustment
A4 IF Local AGC Gain Adjustment
Default Cal Coefficient Adjustment
A2 DC Bias Voltage Adjustment
A2 DC Bias Current Adjustment
A2 DC Bias RC Adjustment
System Backup
A5 Frequency Perform the following required
Reference(Opt adjustment using the A5 Adjustment in
1D5) Spot Adjustment of the program.
A5 Reference Oven Adjustment
A6 Test Head Board Perform the following required
adjustments using theA3 Adjustment
and A2 Adjustment(Opt.001) in Spot
Adjustment of the program.
A3 Output Level Adjustment
A4 IF Gain Adjustment
Default Cal Coefficient Adjustment
A2 DC Bias Voltage Adjustment
A2 DC Bias Current Adjustment
A2 DC Bias RC Adjustment
System Backup
A10 Analog Not Required
Motherboard
A20 Digital Set jumpers and BIOS parameters on
Motherboard
the A20. For details, see "To Configure
the A20 Digital Motherboard and BIOS
(for serial prefix JP1KH, JP2KH, and
MY432)" on page 197.
A21 Analog Not Required
Interface Board
8
Post-Repair Procedures
Post-Repair Procedures
Verification
"To Execute the Internal Test" on page 172
"To Execute the External Test" on page 189
Impedance Measurement Accuracy Test
DC Bias Test
Frequency Accuracy Test(with Option 1D5)
"To Execute the External Test" on page 189
Power Level Accuracy Test
Impedance Measurement Accuracy Test
DC Bias Test
Inspect the Booting Process
When the symptom of failure is out of
specification, perform the performance test.
Inspect the Booting Process
Inspect the Booting Process
"To check the Front Panel" on page 179
"To check the External Trigger Input" on
page 181
309