P3150/P3250/P3150 Refresh/P3250 Refresh/P3251 Condential 3-4
3-3 Main Procedure
No Symptom Procedure
1No Power
• Ensure the Power Cord and AC Power Outlet are securely
connected
• Check Lamp Cover and Interrupt Switch
• Ensure all connectors are securely connected and aren’t
broken
• Check Lamp Driver
• Check LVPS
• Check Main Board
2Auto Shut Down
• Check LED Status
a. Power LED on(B/R), Lamp LED off, Temp LEDon (R)LED on (R)on (R)
• Check Thermal Switch
• Check Fan
b. Power LED on(B/R), Lamp LED on (R), Temp LEDoffLED offoff
• Check Lamp
• Check Lamp Driver
• Check Main Board
c. Power LED on(B/R), Lamp LED off, Temp LEDash (R)LED ash (R)ash (R)
• Check Fan
• Check Main Board
d. Power LED on(B/R), Lamp LED ash (R), Temp LEDoffLED offoff
• Check Color Wheel
• Check Photo Sensor Board