Samsung SCX-1100, Service Manual

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4-7
Troubleshooting
Samsung Electronics
4-3-5 Defective LCD Operation
4-3-6 Defective Operation of Key Button
• Description The LCD screen is not turned on or has a strange display.
Check and Cause Solution
1. Clear the memory. (Refer to page 4-1).
2. Confirm to catch a click sound, while a key on the
OPE panel is pressed on.
3. Check the status of Harness between LCD and OPE
Panel, replace in order of Main B'd/LE Motor.
1. The key is wrong itself or wrongly assembled.
2. Even after the key or harness has been replaced, it is
still wrong, try to replace the OPE ASS'Y and the Main
B'D in sequence.
• Description
• Location 1. OPE ASS'Y 2. Main Board
The button of the OPE Panel is not operated..
Check and Cause Solution
1. Confirm to catch a click sound while the key is
pressed on.
2. Check if a specific key is pressed by another equip-
ment.
1. If you cannot catch a click sound, the key is wrong itself
or wrongly assembled.
2. Even after the key has been replaced, it is still wrong,
try to replace the OPE ASS'Y and the Main B'D in
sequence.
• Location 1.LCD 2.OPE Ass’y 3.Main B’d