Keysight N9912A Service Guide 7-47
Repair and Replacement Procedures
Processor Upgrade Procedures
15.Install the new CPU2 SOM board and reinstall or reconnect all coax cables
that were removed or disconnected previously. Refer to “Replacing the A6
SOM Board and Flexible RF Cables” on page 7-33.
16.Remove the system board to FPIB cable from the old A5 system board and
install it on the new board.
17.Install new gap pads on the LCD shield in the location shown. Refer to
Figure 7-25 for the placement of gap pads. Remove old gap pad, only
remain N9912-20038 gap pad.
18.Install the new I/O side panel. Refer to “Replacing the I/O Side Panel,
Doors, and Gasket” on page 7-14.
19.Perform the steps under “Post-replacement Procedure” on page 7-43.
20.Replace the old nameplate with new nameplate. Refer to Figure 7-10 on
page 7-16. Choose the appropriate model number nameplate overlay for
your analyzer, remove the protective baking to expose the adhesive, and
adhere it in the location shown. Refer to Figure 7-26 for the new
nameplate with red Keysight logo.
21.Proceed “Post-Repair Procedures” on page 7-44 . Download and install
the latest Firmware for the CPU2 from FieldFox Series Firmware Updates.
Figure 7-25 Placement of gap pads
Figure 7-26 New Keysight Nameplate
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