奇
菱
光電股份有限公司
Chi Lin Optronics Corp.
Doc. No
CS-72601
Version A3
Title
CHT-726 Level 1 Service Manual
Page
49 / 75
8. Turn over the projector, take off the top cabinet,
and disconnect the 10-pin cable which connects
the video board and the keypad and the 6-pin
cable connecting controller board and keypad.
9. Electric screw driver torque set for 6.6 lbs.
10. The top cabinet and the keypad. Loose 3 screws
to replace the defective keypad module.
11. Electric screw driver torque set for 6.6 lbs.
12. Reconnect the cables which connect to keypad
on top cabinet. And place the top cabinet on.
Note: The two wires should be pull backward to the
electronic parts. If the wires are left on the optical
engine, the keypad sensitivity will be affected.
13. Electric screw driver torque set for 6.6 lbs.
14. Test the projector. If the keypad is still
defective, check the cables connected to the
keypad.
