Keysight Technologies N5224A Service Manual page 277

Repair and Replacement Procedures
Removing and Replacing the A1–A3 and Other Front Panel Subassemblies
Removing the Touchscreen Controller Board
1. Disconnect the touchscreen controller board cable (item
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
Figure 7-3 Front Panel Subassemblies Removal
Removing the A3 Display Assembly and the Touchscreen
1. Disconnect the following cables from the A1 front panel interface board:
2. Remove seven screws (item
Keysight N5224A/25A Service Guide
touchscreen controller board and front panel interface board.
board.
board by gently pulling each of the rubber tabs through the PC board.
①
display cable (item
controller board cable (item
the A3 display assembly from the front panel assembly.
⑩
) and remove the touchscreen controller
⑤
) and remove the power switch board.
11
), inverter board cable (item
③
), and power switch cable (item
⑤
) from the A3 display assembly and remove
④
) from the
) from the power switch board.
➁
), touchscreen
④
).
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