EPSON Perfection V700 Photo
Revision A
Troubleshooting
Troubleshooting
32
Table 3-4. Scanned Image Quality Error
Step
Possible Cause
Corrective Action
Reference
1
The Document Glass is not clean. (Image has white spots)
Clean the glass.
See Chapter 6
2
ISN Board failure
Replace the Carriage Unit.
See Section 4.2.6 on page 48.
3
Main Board failure
Replace the Main Board
See Section 4.2.5 on page 45.
Table 3-5. The Main Unit Does Not Operate When Powered-On
Step
Possible Cause
Corrective Action
Reference
1
A connector is disconnected.
Connect the disconnected connectors.
See Section 7.1.2 on page 73.
See Chapter 4
2
CR Motor failure
Replace the CR Motor.
See Section 4.2.7 on page 50.
Replace the Main Board.
See Section 4.2.5 on page 45.
Table 3-6. The Carriage Unit Does Not Operate
Step
Possible Cause
Corrective Action
Reference
1
The Carriage Lock has not been released.
Release the Carriage Lock.
See Step 3 of Section 4.2.2 on page 40.
2
The Upper Housing is not installed correctly.
Install it normally.
See Section 4.2.2 on page 40.
3
Carriage Mechanism failure
• The CR Motor does not operate normally when powered-on with
the Upper Housing removed.
• The Carriage Unit does not move normally with the CR Motor
removed.
Replace the Carriage Unit.
See Section 4.2.6 on page 48.
4
CR Motor failure
Replace the CR Motor.
See Section 4.2.7 on page 50.
Replace the Main Board.
See Section 4.2.5 on page 45.
Table 3-7. The Carriage Unit Operates, Scanner Indicates Error
Step
Possible Cause
Corrective Action
Reference
1
Main Board failure
Replace the Main Board.
See Section 4.2.5 on page 45.
Summary of Contents for Perfection V700 Series
Page 1: ...EPSON PerfectionV700Photo Color Image Scanner Service Manual SESC05006 ...
Page 5: ...Revision Status Revision Date of Issue Description A December 20 2005 First release ...
Page 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 19: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 30: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 35: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 66: ...C H A P T E R 5 ADJUSTMENT ...
Page 68: ...C H A P T E R 6 MAINTENANCE ...
Page 72: ...C H A P T E R 7 APPENDIX ...
Page 75: ...Model GT X900 Perfection V700 Photo Board B178 MAIN Board Assy MAIN Rev C Sheet 1 1 ...
Page 76: ...Model GT X900 Perfection V700 Photo Board B178 SUB Board Assy SUB Rev A Sheet 1 1 ...
Page 77: ...Model GT X900 Perfection V700 Photo Board B178 PNL Board Assy PNL Rev A Sheet 1 1 ...
Page 78: ...Model GT X900 Perfection V700 Photo Board B178 ISN Board Assy ISN Rev A Sheet 1 1 ...
Page 79: ...Model GT X900 Perfection V700 Photo Board B178 DRV Board Assy DRV Rev A Sheet 1 1 ...
Page 80: ...Model GT X900 Perfection V700 Photo Board B178 SUB B Board Assy SUB B Rev A Sheet 1 1 ...
Page 81: ...Model GT X900 Perfection V700 Photo Board B178 SUB C Board Assy SUB C Rev A Sheet 1 1 ...
Page 82: ...Model GT X900 Perfection V700 Photo Board B178 SUB D Board Assy SUB D Rev A Sheet 1 1 ...
Page 83: ...Model GT X900 Perfection V700 Photo Board B178 SUB E Board Assy SUB E Rev A Sheet 1 1 ...