Keysight N9923A, Руководство по обслуживанию

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Keysight N9923A Service Guide 7-43
Repair and Replacement Procedures
Post-Repair Procedures
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.*
PORT 1 connector or
associated cable (W1)
replaced or disturbed.
Error Terms. Error Terms test.
PORT 2 connector or
associated cable (W2)
replaced or disturbed.
Error Terms. Error Terms 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.*

Check time and date.*
A4 RF board All TME based adjustments. All TME based tests.
A5 system board First, load the instrument serial number into the
A5 system board.* 
All TME based adjustments.
All TME based tests. 
Check time and date.*
A6 SOM board Install firmware from SD card.* 
Re-install options.* 
All TME based adjustments.
All TME based tests. 
Compare serial numbers.* 
Check time and date.*