EPSON Perfection V500 Photo
Revision A
TROUBLESHOOTING
Troubleshooting
27
Table 3-10. The TPU Carriage Unit does not operate.
Step
Possible Cause
Corrective Action
1
The TPU Unit Cable is not connected to the
main unit.
Connect the TPU Cable to the main unit.
2
The TPU Carriage Lock has not been
released.
Release the TPU Carriage Lock.
3
The TPU Lower Housing is not installed
correctly.
Reinstall it correctly.
4
T
he TP
U Carri
age
M
echa
nis
m
Fa
ilure
.
The torsion springs is not attached to
the TPU CR Timing Belt correctly.
Attach them to the belt correctly.
• The TPU CR Motor does not
move normally when powered-
on with the TPU Lower Housing
removed.
• The TPU Carriage Unit does not
move normally with the TPU CR
Motor removed.
Replace the TPU Carriage Unit.
5
TPU CR Motor failure
Replace the TPU CR Motor.
6
DRV Board failure
Replace the DRV Board.
7
Main Board failure
Replace the Main Board
Table 3-11. The LED of the TPU does not light
Step
Possible Cause
Corrective Action
1
The FFC is not connected to CN1 on the
LM-B Board.
Connect the FFC to CN1 on the LM-B
Board and CN3 on the DRV Board.
2
The SUB-C Board cable is not connected to
CN2 on the LM-B Board.
Connect the SUB-C Board cable to CN2 on
the LM-B Board.
3
Failure of the LM-B Board and the SUB-C
Board
Replace the LM-B Board and the SUB-C
Board.
4
DRV Board failure
Replace the DRV Board.
5
Main Board failure
Replace the Main Board
Содержание V500
Страница 1: ...EPSON PerfectionV500Photo Color Image Scanner Service Manual SESC07002 ...
Страница 5: ...Revision Status Revision Date of Issue Description A August 3 2007 First release ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 18: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 24: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 28: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Страница 52: ...C H A P T E R 5 ADJUSTMENT ...
Страница 54: ...C H A P T E R 6 MAINTENANCE ...
Страница 58: ...C H A P T E R 7 APPENDIX ...
Страница 62: ...Model GT X770 Perfection V500 Photo Board Main Board Rev E Sheet 1 1 ...
Страница 63: ...Model GT X770 Perfection V500 Photo Board Panel Board Rev A Sheet 1 1 ...
Страница 64: ...Model GT X770 Perfection V500 Photo Board DRV Board Rev B Sheet 1 1 ...
Страница 65: ...Model GT X770 Perfection V500 Photo Board ISN Board Rev E Sheet 1 1 ...
Страница 66: ...Model GT X770 Perfection V500 Photo Board SUB Board Rev A Sheet 1 1 ...
Страница 67: ...Model GT X770 Perfection V500 Photo Board SUB C Board Rev A Sheet 1 1 ...
Страница 68: ...Model GT X770 Perfection V500 Photo Board LM Board Rev B Sheet 1 1 ...
Страница 69: ...Model GT X770 Perfection V500 Photo Board LM B Board Rev B Sheet 1 1 ...