Optoma DV11 Serveice Manual page 32

Procedure
No Symptom
- Check if the disk is scratched.
- Check if the anti-static protection of DVD Loader Module is
unsoldered.
14 Disk cannot be read
- Check if the region code is correct or not.
- Check DVD Loader Module.
DV11 / DVD100 / U2 / U3 Confidential
3-5