EPSON GT-7000
Chapter 3
Troubleshooting
Rev. A
25
Table 3-7. Carriage moves but Error indication appears
Table 3-8. Lamp does not light up.
Table 3-9. Scanned image is unclear.
Table 3-10. SCSI Interface Error(SCSI Model Only)
Cause
Step
Checkpoint
Finding
Solution
CR home position
sensor is broken.
1
Check the signal
level.
• Check the
signal/status
level between
C(+) and E(-) for
PC2.
H(about 4.5V)/
when PC1-PC2 is
closed.
L(0.3V)/when PC1
-PC2 is opened.
--
Replace the CR
home position
sensor(PC1/PC2)
on the control
board.
Cause
Step
Checkpoint
Finding
Solution
Connector CN5 on
the control board is
disconnected.
1
Is the connector CN5
on the control board
disconnected?
Yes
Connect CN5
properly.
Connector CN1 or
CN2 on the CCD
board disconnected.
2
Is the connector CN1
or CN2 on the CCD
board disconnected?
Yes
Connect CN1 or 2
properly.
Lamp is not
connected properly
on the inverter board.
3
Is the lamp connected
properly on the
inverter board?
No
Connect the lamp
properly.
Lamp is broken.
4
Does the lamp light
after it is replaced?
Yes
Replace the
lamp.
Inverter board is
broken.
5
Does it operate
properly after
replacing it?
Yes
Replace the
inverter board.
Control board is
broken.
6
---
---
Replace the
control board.
Cause
Step
Checkpoint
Finding
Solution
Mirror in the carriage
unit is dirty.
1
Is the image
scanned clearly
after cleaning the
mirror?
No
Clean the lamp
surface.
CCD sensor board is
broken.
2
---
--
Replace the CCD
board.
Control board is
broken.
3
---
---
Replace the control
board.
Cause
Step
Checkpoint
Finding
Solution
Terminator switch is
set wrong.
1
Check the user’s
guide for the
correct setting. Is
the setting correct?
No
Set the terminator
correctly.
SCSI setting is
wrong.
2
Check the user’s
guide for the
correct setting. Is
the setting correct?
No
Set the SCSI
correctly.
SCSI cable is
defective.
3
Replace the SCSI
cable. Is the
operation normal?
Yes
Replace the SCSI
cable.
Control board is
broken.
4
---
---
Replace the control
board.
Summary of Contents for GT-7000 Photo
Page 1: ...EPSON EPSON EPSON France S A GT 7000 SERVICE MANUAL ...
Page 2: ...6 59 0 18 RORU PDJH 6FDQQHU EPSON GT 7000 4009736 ...
Page 9: ... PRODUCTDESCRIPTION ...
Page 20: ... OPERATINGPRINCIPLES ...
Page 28: ... TROUBLESHOOTING ...
Page 34: ... DISASSEMBLYANDASSEMBLY ...
Page 54: ... ADJUSTMENT ...
Page 56: ... MAINTENANCE ...
Page 58: ...EPSON GT 7000 Chapter 6 Maintenance Rev A 51 Figure 6 1 Lubrication Points G 2 6 G 2 6 ...
Page 59: ... APPENDIX ...
Page 68: ......
Page 69: ......