Optoma EX542 Service Manual page 35

No Symptom
3 No Light On
4 No Image
5 Mechanical Noise
6 Line Bar/Line Defect
EX540/EX542/EX612/EX615/EX762/EX540I/EX542I/ES523ST/EW533ST Confidential
- Ensure all connectors are securely connected and aren't broken
- Check Lamp Cover, Interrupt Switch
- Check Lamp Module
- Check Lamp Driver
- Check LVPS
- Check Main Board
- Check Color Wheel
- Check Photo Sensor Board
- 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 DMD Board
- Check DMD Chip
- Check Color Wheel
- Check Engine Module
- Check Color Wheel
- Check Fan Module
- Check whether the Main Board and the DMD Board are
assembled properly
- Check Main Board
- Check DMD Board
- Check DMD Chip
Procedure
3-3