Keysight N5221A Service Manual page 261

PNA Series Microwave Network Analyzers
N5221A/22A
Removing the Touchscreen Controller Board
1. Disconnect the touchscreen controller board cable (item
front panel interface board.
2. Disconnect the flat flex cable from the touchscreen.
3. Remove two screws (item
Removing the Power Switch Board and Power Button Keypad
1. Disconnect the power switch cable (item
2. Remove two screws (item
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
Service Guide N5222-90001
Removing and Replacing the A1–A3 and Other Front Panel Subassemblies
⑩
) and remove the touchscreen controller board.
⑤
) from the power switch board.
⑩
) and remove the power switch board.
Repair and Replacement Procedures
④
) from the touchscreen controller board and
7-11