Main Procedure - Optoma EX762 Service Manual

3-2 Main Procedure

No Symptom
 No Power
2 Auto Shut Down
3 No Light On
- Ensure the Power Cord and AC Power Outlet are securely con-
nected
- Ensure all connectors are securely connected and aren't broken
- Check LVPS
- Check Lamp Driver
- Check Main Board
- Check LED status
a. Lamp Fail: ON/STANDBY LED (flashes amber);
Lamp LED (lights red)
- Check Lamp
- Check Lamp Driver
- Check Main Board
- Check Color Wheel
- Check Photo Sensor
- Check whether Wireless status of OSD Menu is on
(conncet VGA1- IN port with VGA source)
b. Over Temp.: ON/STANDBY LED (flashes amber);
Temp LED (lights red)
- Check Thermal Switch
- Check Fan
- Check Main Board
c. Fan Fail: ON/STANDBY LED (flashes amber);
Temp LED (Flashes red)
- Check Fan
- Check Main Board
- 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
Procedure
EX762/EW762
Confidential
3-2