Optoma HD21 - Page 31

HD20/HD200X/HD2200/HD20LV/HD21/HD23
Condential
3-3
No Symptom Procedure
3 No Light On
- Ensure all connectors are securely connected and aren’t broken
- Check Lamp Cover and Interlock Switch
- Check Lamp
- Check L�PS
- Check Lamp Driver
- Check Main Board
- Check Color Wheel
- Check Photo Sensor Board
4
No Image
- Ensure the Signal Cable and Source work
(If you connect multiple sources at the same time, use the
"Source" button switch)
- Ensure all connectors are securely connected and aren’t broken
- Check Main Board
- Check Engine Module
- Check DMD Board
- Check DMD Chip
5 Mechanical Noise
- Check Color Wheel
- Check Fan Module
6 Line Bar/Line Defect
- Check if the Main Board and the DMD Board are
assembled properly
- Check Main Board
- Check DMD Board
- Check DMD Chip