5-9
2. Remove the grounding spring and then unscrew the three PT3×8 screws and take out the
button board.
NOTE
z Do not forget the grounding spring when reassembling.
5.4.4 Removing the Touchscreen Control Board
Unplug the touchscreen cable and the cable from the button board to the touchscreen control
board. Then, unscrew the two M3×6 screws and remove the touchscreen control board.