EPSON Stylus Photo R300/R310 Revision A
TROUBLESHOOTING Unit Level Troubleshooting 21

Table 1-8. Check Points for CD/DVD Guide Error to Each Phenomenon

Occurren ce Timing
Position of CR Phenomenon Detail Faulty Part/
Part Name Check Point Remedy
At power-on
At HP
An error occurs even if "CDR Guide
Assy." is closed when turning on the
power.
Housing, Middle
1. Check if the contact point of "Housing, Middle" with
"Star Wheel/CDR Sensor" is not cracked. 1. Replace "Housing, Middle" with a new one.
Star Wheel/
CDR Sensor
1. Check if "Star Wheel/CDR Sensor" is connected to CN6
on "Main Board".
2. Check if "Star Wheel/CDR Sensor" is not damaged.
3. Check if "Star Wheel/CDR Sensor" cable is not cut off.
1. Connect "Star Wheel/CDR Sensor" to CN6
on "Main Board".
2. Replace "Star Wheel /CDR Sensor" with a
new one.
3. Replace "Star Wheel /CDR Sensor" with a
new one.
Main Board 1. Check if any device on "Main Board" is not damaged. 1. Replace "Main Board" with a new one.
Contact
point
Star Wheel/CDR Sensor