2-110
Confidential
4.9 Troubleshooting of the LED ASSY
4.9.1 LED ASSY failure
<User Check>
- Turn ON the power, open the joint cover ASSY and back cover, and leave them as they are
for a while.
- Clean the LED ASSY.
Step
Cause
Remedy
1
Flat cable connection failure
of the LED ASSY
Check the flat cable connection of the LED
ASSY and reconnect it.
2
Harness connection failure of
the LED control PCB
Check the harness connection of the LED
control PCB ASSY and reconnect it.
3
Flat cable failure of LED
ASSY
Replace the flat cable of the LED ASSY.
4
LED ASSY failure
Replace the LED ASSY.
5
LED control PCB failure
Replace the LED control PCB ASSY.
6
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for DCP-9020CDN
Page 47: ...2 8 Confidential 2 2 2 Scanning part Fig 2 4 ...
Page 89: ...2 50 Confidential Electrodes location of main body Fig 2 7 ...
Page 172: ...3 9 Confidential EM2 0 MOLYKOTE EM D110 2 0 mm dia ball EM2 0 Back cover ASSY Back cover ASSY ...
Page 345: ...5 7 Confidential Black and white scanning First side Front Fig 5 1 ...
Page 346: ...5 8 Confidential Black and white scanning Second side Back Fig 5 2 ...
Page 347: ...5 9 Confidential Color scanning First side Front Fig 5 3 ...
Page 348: ...5 10 Confidential Color scanning Second side Back Fig 5 4 ...
Page 384: ...5 46 Confidential LED test pattern M68_L Fig 5 17 ...
Page 429: ...App 3 8 Confidential When the following screen appears click Close to close the screen ...