LP340/340B/350 Service Manual 38
Keypad
The keypad (526-0050-xx) fastens to the inside of the top case. The assembly includes the keypad ECA,
the key set, and the keypad cable. The individual pieces remain attached when you remove the keypad.
When a button is pressed on the keypad, the keypad ECA receives the signal and passes it on to the
controller ECA via the keypad cable. A processor on the controller ECA processes the signal.
1 Remove the chassis and attached parts from the top case (see page 28).
2 On the inside of the top case, remove the two M3x8 Torx screws that fasten the keypad to the
case. Then lift the keypad out of the projector.
Assembly Notes
♦ Note the orientation of the keypad cable. It should point toward the outside of the top case.
♦ Torque the two M3x8 screws to 6 in.-lbs. (.678 N m).
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