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Confidential
9-56
9.2.4.7 Troubleshooting of the control panel
(L-1) Nothing is displayed on the LCD.
User Check
(1) Verify if the power switch is turned off.
Possible cause
Step
Check
Result
Remedy
Connection
between main
PCB and control
panel PCB
1
Main PCB and
control panel PCB
are properly
connected
No
Fix the connector properly.
Harness between
main PCB and
control panel
PCB
2
Harness is damaged.
Yes
Replace the harness with a normal
part.
Connection
between main
PCB and low-
voltage power
supply PCB
3
Main PCB and low-
voltage power supply
PCB are properly
connected.
No
Fix the connection properly.
Harness between
main PCB and
low-voltage
power supply
PCB LCD
4
Harness is damaged.
Yes
Replace the harness with a normal
part.
LCD
5
Replacement of LCD
solves the problem.
Yes
Replace the LCD with a normal
part.
Control panel
PCB
6 Replacement
of
control panel PCB
solves the problem.
Yes
Replace the control panel PCB
with a normal part.
Low-voltage
power supply
PCB
7
Replacement of low-
voltage power supply
PCB solves the
problem.
Yes
Replace the low-voltage power
supply PCB with a normal part.
Main PCB
8
Replacement of main
PCB solves the
problem.
Yes
Replace the main PCB with a
normal part.
Summary of Contents for DCP 8060
Page 19: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 28: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 65: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 92: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 95: ...Confidential 4 2 Cover page sample End page sample ...
Page 96: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 246: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 292: ...Confidential CHAPTER 7 CLEANING ...
Page 294: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 302: ...8 7 Confidential For white and black scanning a b c d e f g h i j ...
Page 314: ...8 19 Confidential Cover page sample End page sample Fig 8 10 ...
Page 323: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 458: ...B Power Supply PCB 100V Confidential ...
Page 459: ...B Power Supply PCB 200V Confidential ...
Page 495: ...January 06 SM FAX049 8C5B03 9 Printed in Japan ...