Perfection 4870 Photo
Revision A
TROUBLESHOOTING
Troubleshooting
36
Figure 3-9. The LED of the TPU does not light up.
Is the TPU
Harness connected
to the TPU Main
Board and TPU
Carriage?
Is the
Connector CN2
connected to the
TPU Main
Board?
Are the
Connectors
CN2, CN3 on the
TPU Inverter Board
connected?
Start
Connect the TPU
Harness.
Connect the
Connector.
Connect the
Connectors.
Replace the
SUB_C, D Board
Summary of Contents for Perfection 4870 Photo
Page 1: ...EPSON Perfection4870Photo Color Image Scanner Service Manual SESC03 008 ...
Page 5: ...Revision Status Revision Date of Issue Description A December 10 2003 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 29: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 37: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 63: ...C H A P T E R 5 ADJUSTMENT ...
Page 65: ...C H A P T E R 6 MAINTENANCE ...
Page 68: ...C H A P T E R 7 APPENDIX ...
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