7-12 Service Guide N5242-90001
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the A1–A3 and Other Front Panel Subassemblies N5242A
Removing the A3 Display Assembly and the Touchscreen
1. Disconnect the following cables from the A1 front panel interface board: display cable
(item
①
), inverter board cable (item
②
), USB controller board cable (item
③
), and
power switch cable (item
④
).
2. Remove six screws (item
⑤
) from the A3 display assembly and remove the A3 display
assembly from the front panel assembly.
3. The touch screen can now be removed from the front panel assembly. Note the
orientation of the touch screen in the front panel assembly for installation of the new
touch screen.
To replace the touch screen, note the orientation of the rubber boot on the old touch
screen and then remove it and install it on the new one in the same orientation.
Figure 7-4 A3 Display Assembly and Touch Screen Removal-1
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