Keysight N9912A Service Manual page 100

Repair and Replacement Procedures
Removing and Replacing the Case Group Parts
Replacing the I/O Side Panel, Doors, and Gasket
1. Separate the front and rear cases. See
Cases" on page
2. Remove the measurement group assemblies (RF top panel assembly, A4
RF board, A5 system board, and A6 SOM board) as one unit with the I/O
panel attached, but do not disconnect cable W11 from between the A2
LCD and the A5 system board. Refer to
Measurement Group Assemblies" on page
3. Remove the two screws (item 5) that secure the I/O side panel to the A5
system board and remove the I/O side panel.
Figure 7-8 Replacing the I/O Side Panel
4. Remove the three doors from the old I/O side panel:
5. Install the three doors in the new I/O side panel:
7-14
7-9.
a. Open each door to its stopping point, then GENTLY force it beyond
its stopping point to separate it from the panel.
a. Place each door in its respective opening with the hinges aligned
with the hinge slots in the side panel.
"Separating the Front and Rear
"Removing and Replacing the
7-29.
Keysight N9912A Service Guide