Epson Stylus CX3100 Service Manual page 31

EPSON Stylus CX3100/3200
Table 3-8. Carriage unit does not operate
Cause Step Check Point
Connector Connector CN11 on main
CN11 on main board is disconnected?
1
board is
disconnected.
Faulty carriage Grease is applied
moving properly?
2
mechanism
• Does CR motor
operate when power is
turned ON with upper
case of Scanner
3
removed?
• Does CR unit move
with CR motor
removed?
Faulty CR Disconnect connector
motor CN7 on main board and
measure with a tester the
coil resistance between
4 pins 2 and 4 and between
1 and 3 on motor side.
See Table 3-13, "Motor
Resistance and Check
Point," on page 33
Defective main
5
board
Troubleshooting
Yes/No Remedy
Connect the connector.
Yes
Apply grease at
designated point
No
(Refer to
"Maintenance"
Check the carriage
moving mechanism,
replace the relevant
parts or remove and
No
reinstall them.
Replace the CR motor
No
Replace the main board
- -
Troubleshooting for Scanner
Table 3-9. Carriage operates but error indicated
Cause
Upper case of
scanner is removed.
Defective main
board
Defective CR HP
sensor
(p.74))
Table 3-10. Fluorescent lamp does not turn on
Cause Step
Connector
CN1 on main
1
board is
disconnected.
Connector of
CCD module is 2
disconnected.
Fluorescent
lamp is not set
correctly in 3
connector on
inverter board.
Defective lamp
4
Defective
5
inverter board
Defective main
6
board
Yes/
Step Check Point
No
Upper case of
1 Yes
scanner is removed.?
2 - -
3 - -
Check Point Yes/No
Connector CN1 on main
board is disconnected?
Yes
Connector of CCD
module is disconnected? Yes
Fluorescent lamp is not
set correctly in connector
on inverter board? No
Lamp turns on after
Yes
replaced?
Inverter board is normal
Yes
after replaced?
- -
Revision A
Remedy
Install the upper case.
Replace the main board.
Replace the CR HP
sensor.
Remedy
Connect the connector
CN1 on the main
board.
Connect the connector
on the CCD module.
Set the lamp correctly
on the inverter board.
Replace the CCD
module.
Replace the CCD
module.
Replace the main
board.
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