Keysight N9912A - Page 101

Keysight N9912A Service Guide 7-15
Repair and Replacement Procedures
Removing and Replacing the Case Group Parts
b. Press the hinges into their slots until they snap into place.
Figure 7-9 Replacing the I/O Side Panel Doors and Gasket
6. Before installing the new I/O side panel, or when reinstalling the existing
I/O side panel, install a new gasket in the groove around the perimeter of
the panel.
If an old gasket must be removed, use tweezers being careful not to
damage the groove.
Start in the groove near the flat end of the side panel. Be careful not to
stretch or damage the gasket in any way. Also, make sure there is no slack
in the gasket. A new gasket is provided in the Repair and Re-assembly Kit
(see page 6-12). It is the smaller of the two gaskets provided in the kit.
7. To install the new I/O side panel, place it in position on the A5 system
board and reinstall the two attachment screws. See Figure 7-8.
8. Reinstall the measurement group assemblies (RF top panel assembly, A4
RF board, A5 system board, and A6 SOM board) as one unit with the new
I/O panel attached.
9. Reinstall the rear case onto the front case. See Combining the Front and
Rear Cases.
Replacing the Front Case (including the A1 Keypad)
1. Separate the front and rear cases. See Separating the Front and Rear
Cases.