Service Guide N5242-90001 7-11
PNA Series Microwave Network Analyzers Repair and Replacement Procedures
N5242A Removing and Replacing the A1–A3 and Other Front Panel Subassemblies
Removing the USB Controller Board
1. Disconnect the USB controller board cable (item
④
) from the USB controller board.
2. Remove two screws (item
⑨
) and remove the USB controller board.
Removing the Power Switch Board and Power Button Keypad
1. Disconnect the power switch cable (item
⑤
) from the power switch board.
2. Remove two screws (item
⑩
) and remove the power switch board.
3. The power button keypad can now be removed from the power switch board by gently
pulling each of the rubber tabs through the PC board.
Figure 7-3 Front Panel Subassemblies Removal
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