Keysight N9912A - Post-Repair Procedures; Manual Checks and Procedures

7-44 Keysight N9912A Service Guide
Repair and Replacement Procedures
Post-Repair Procedures
7-
Post-Repair Procedures
After the replacement of an assembly, you must perform the service
procedures in the order listed in Table 7-2.
Procedures referenced in this table are located in Chapter 3, “Tests and
Adjustments,” unless specified otherwise.
* Refer to the following manual checks and procedures for details.
Manual Checks and Procedures
Manual Check of Keyboard
Check that each key works properly. Check that the keyboard backlight LEDs
come on when a key is pressed.
Table 7-2 Related Service Procedures
Replaced Assembly Adjustments, etc. TME Tests or Other Procedures
Main battery None needed. None needed.
RPG None needed. Manual check of RPG operation.*
RF OUT connector or
associated cable (W1)
replaced or disturbed.
None needed. Error Terms test.
RF IN connector or
associated cable (W2)
replaced or disturbed.
None needed. Station Calibration for tests.
Absolute Amplitude Accuracy Test.
Frequency Response Preamp Off test.
Frequency Response Preamp On test.
Front case (including A1
keypad)
None needed. Manual check of keyboard.*
A2 LCD None needed. Manual check of LCD.*
A3 front panel interface
board
None needed. Manual check of keyboard.*
Check for even brightness in LCD
backlight.*
Check sound.*
A4 RF board All TME based adjustments that apply to the
installed option configuration.
All TME based tests that apply to the
installed option configuration.
A5 system board First, load the instrument serial number into the
A5 system board.*
All TME based adjustments that apply to the
installed option configuration.
All TME based tests that apply to the
installed option configuration.
A6 SOM board Install firmware from SD card.*
Re-install options.*
All TME based adjustments that apply to the
installed option configuration.
Compare serial numbers.*
All tests that apply to the installed
option configuration.