Main Procedure - Acer P5271 Service Manual

3-2 Main Procedure

No Symptom
1 No Power
2 Auto Shut Down
3 No Light On
- Ensure the Power Cord and AC Power Outlet are securely connected
- Ensure all connectors are securely connected and aren't broken
- Check LVPS
- Check Lamp Driver
- Check Main Board
- Check LED Status
a. Thermal/Fan Failure: Temp LED (lights or flashes red), Power
LED (lights red)
- Check Thermal Switch
- Check Fan
- Check Main Board
b. Lamp Failure Failure: Lamp LED (lights red), Power LED (lights blue)
- Check Lamp
- Check Lamp Driver
- Check Main Board
c. Color Wheel Failure: Color Wheel Failure: Failure: : Lamp LED (flashes red), Power LED
(lights blue)
- Check Color Wheel
- Check Photo Senor
- Check Main Board
- Ensure all connectors are securely connected and aren't broken
- Check Lamp Cover
- Check Interrupt Switch
- Check Lamp Module
- Check Lamp Driver
- Check LVPS
- Check Main Board
- Check Color Wheel
- Check Photo Sensor Board
P5271/P5290/P5390W/P5271i Confidential
Procedure
3-2