Keysight N9912A Service Manual page 102

Repair and Replacement Procedures
Removing and Replacing the Case Group Parts
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. Refer to
Group Assemblies" on page
3. Remove the front panel group assemblies (A2 LCD, A3 front panel
interface board, and RPG). Refer to
Panel Group Assemblies" on page
Figure 7-10 Replacing the Front Case
4. Carefully remove the serial number label from the inside bottom of the old
front case and apply the label to the new front case.
5. Choose the appropriate model number nameplate overlay for your
analyzer, remove the protective backing to expose the adhesive, and
adhere it in the location shown.
6. Remove the dowel pins (item 5) from the old front case and install them in
the new case. The other two dowel pins should already be installed in the
case.
7. Make sure that the gaskets (item 6) are all in place in the grooves, that
there are no gaps, and that they are not damaged in any way.
8. Refer to
page 7-21
7-16
"Removing and Replacing the Measurement
7-29.
"Removing and Replacing the Front Panel Group Assemblies" on
to reinstall the front panel group assemblies removed in
"Removing and Replacing the Front
7-21.
Keysight N9912A Service Guide
step 3.