187
SEP 2006
Ver. 1.0
DP-8020E/8020P/8016P
4.2. Improper LCD Display
Note:
LCD Display Brightness Adjustment
To adjust the brightness of the LCD display, press, and while holding down the "CLEAR" key, keep
pressing the "ORIGINAL SIZE", or the "COPY SIZE" key until the desired brightness is achieved.
ORIGINAL SIZE: Dimmer
COPY SIZE : Brighter
Replace the SC PCB.
Is the trouble
resolved?
Replace the
Power Supply
Unit.
Check connectors: CN52 (SC PCB),
and CN220 (PNL1 PCB).
Is LED/LCD displayed?
Does the display appear normal?
Replace the LCD
Module.
Does CN52, pin 6 on the SC
PCB measure +5 VDC?
Ye s
Ye s
Ye s
Ye s N o
No
No
No
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END
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