Defective Lcd Operation - Dell 1815 Mono Laser Service Manual

7.2. Printing Problems (malfunction)
7.2.1 Defective Operation (LCD WINDOW
Strange characters are displayed on the OPE Panel and buttons are not operated.
• Description
Check and Cause
1. Clear the memory.
2. Check if OPE HARNESS is connected to the Connection
B'd correctly.

7.2.2 Defective LCD Operation

• Description
Defective LCD Operation
Check and Cause
1. Clear the memory.
2. Confirm to catch a click sound, while a key on the OPE
panel is pressed on.
) Display
Solution
1. Try again after clearing the memory.
2. After confirming that OPE HARNESS is connected to
the Main B'd correctly, if it is so, then replace the
OPE Ass'y and Main Board in sequence.
Solution
1. 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.
Troubleshooting
Service Manual
7-5