Main Procedure - Optoma ML300 Service Manual

3-2 Main Procedure

No Symptom
 No Power
2 Auto Shut Down
3 No Light On
4 No Image Image
5 Mechanical Noise
Line Bar / Line
6
Defect
7 Image Flicker
Dead Pixel / Dust
8
(Out of spec.)
- Ensure the Power Cord ,Power adapter and AC Power Outlet are
securely connected.
- Ensure all connectors are securely connected and aren't broken.
- Check FPC cable between Keypad Board and Main Board.
- Check Keypad Board
- Check Main Board
- Ensure the environment temperature is under 40 degree C.
- Ensure the projector is not put on a soft pad and the air vent is not
blocked.
- Check Fan Module
- Check Main Board
- Ensure all connectors are securely connected and aren't broken
- Check Keypad Board - Check Keypad Board
- Check Daughter Board Daughter Board Board
- Check Main Board
- Check LED cable
- Ensure the Signal Cable and Source work (If you connect multiple
sources at the same time, use the "Source" button on the control
panel to switch)
- Ensure all connectors are securely connected and aren't broken
- Ensure all Multimedia Format Supported (detail in chapter 1-3) by
the projector.
- Check FPC cable between Daughter Board and Main Board.
- Check Daughter Board
- Check Main Board
- Check DMD Chip
- Check Engine Module
- Check Fan Module
-Check if theMain Board and the DMD Board are assembled
properly
- Check Main Board
- Check DMD Board
- Check DMD Chip
- Do "Factory Reset " of the OSD Menu
- Ensure that the signal cables and source work well
- Check Main Board
- Ensure the Projection Screen without dirt
- Ensure the Projection Lens is clean
- Clean DMD Chip and Engine Module
- Check DMD Chip
- Check Engine Module
Procedure
ML300
Confidential
3-2