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Confidential
4.6 Troubleshooting for Control Panel Problems
4.6.1 Nothing is displayed on the LCD
<User Check>
• Turn the power switch OFF and then back ON again.
• Unplug the AC cord and then plug it again.
4.6.2 Nothing is displayed on the LED
<User Check>
• Turn the power switch OFF and then back ON again.
Step
Cause
Remedy
1
Connection failure of the
panel flat cable
Reconnect the panel flat cable.
2
Connection failure of the low-
voltage power supply harness
Reconnect the low-voltage power supply
harness.
3
Connection failure of the high-
voltage power supply flat cable
(Touch panel models only)
Reconnect the high-voltage power supply flat
cable.
4
Connection failure of the LCD
flat cable
Reconnect the LCD flat cable.
5
AC cord failure
Replace the AC cord.
6
Panel flat cable failure
Replace the panel flat cable.
7
LCD failure
Replace the LCD.
8
Panel PCB failure
Replace the panel PCB.
9
Low-voltage power supply
PCB failure
Replace the low-voltage power supply PCB.
10
Main PCB failure
Replace the main PCB.
Step
Cause
Remedy
1
Connection failure of the key
flat cable
Reconnect the key flat cable.
2
Panel flat cable failure
Replace the panel flat cable.
3
Key PCB failure
Replace the key PCB.
4
Main PCB failure
Replace the main PCB.
Summary of Contents for DCP-L3510CDW
Page 46: ...2 10 Confidential 2 2 2 Scanner part Fig 2 6 Left side Right side Document feed path ...
Page 155: ...2 119 Confidential Electrodes location of belt unit Fig 2 16 ...
Page 193: ...3 2 Confidential 2 PACKING Pad upper R Pad upper L Carton Pad bottom Option carton upper ...
Page 204: ...3 13 Confidential 5 Panel unit Key flat cable ...
Page 213: ...3 22 Confidential 14 Process drive unit Paper feed motor flat cable ...
Page 362: ...5 34 Confidential Print adjustment test pattern Fig 5 8 ...