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Confidential
3.10 Control Panel Troubleshooting
3.10.1 Nothing is displayed on the LCD
3.10.2 The control panel does not work
3.10.3 Lamp malfunction
<User Check>
- Check that the power switch is turned ON.
Step
Cause
Remedy
1
AC cord failure
Replace the AC cord.
2
Connection failure of the panel PCB
harness
Reconnect the panel PCB harness.
3
Connection failure of the LCD
harness
Reconnect the LCD harness.
4
LCD failure
Replace the LCD.
5
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
ASSY.
6
Panel PCB failure
Replace the panel PCB ASSY.
7
Main PCB failure
Replace the main PCB ASSY.
<User Check>
- Turn the power OFF and ON.
Step
Cause
Remedy
1
Panel unit attachment failure
Reattach the panel unit.
2
Connection failure of the panel PCB
harness
Reconnect the panel PCB harness.
3
Rubber key failure
Replace the rubber key.
4
Panel PCB failure
Replace the panel PCB ASSY.
5
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Connection failure of the panel PCB
harness
Reconnect the panel PCB harness.
2
Panel PCB failure
Replace the panel PCB ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for FAX-2950
Page 20: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 35: ...Confidential CHAPTER 2 TROUBLESHOOTING ...
Page 45: ...2 8 Confidential 2 2 2 Scanning part Fig 2 4 ...
Page 122: ...Confidential CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Page 130: ...3 6 Confidential 5 LUBRICATION There are no applicable parts for lubrication ...
Page 136: ...3 12 Confidential 3 New toner sensor PCB ASSY New toner sensor PCB ASSY Main PCB ASSY Guide ...
Page 204: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT ...
Page 217: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 224: ...5 5 Confidential Black and white color scanning Fig 5 1 ...
Page 263: ...Confidential CHAPTER 6 WIRING DIAGRAM ...
Page 266: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 267: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE CONTENTS 1 PERIODICAL REPLACEMENT PARTS 7 1 ...
Page 269: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 273: ...Confidential APPENDIX 3 INSTALLING MAINTENANCE DRIVER ...
Page 275: ...Confidential APPENDIX 4 HOW TO MAKE PROTECTIVE MATERIAL FOR DRUM UNIT ...