Panasonic PT-40LC12 Service Manual page 28

Lamp automatically turns off
Power LED flashes orange once
every 5 seconds.
TEMP LED flashes once every 5 seconds.
TEMP LED flashes 3 times every 5 seconds.
LAMP LED flashes twice every 5 seconds.
LAMP LED flashes 3 times every 5 seconds.
LAMP LED flashes 4 times every 5 seconds.
TEMP LED flashes 5 times every 5 seconds. Cleaning the Air Filter. Still NG, replace the Air Filter.
TEMP LED flashes twice every 5 seconds.
TEMP LED flashes 4 times every 5 seconds. Cleaning the Air Filter.
NO
Are the Front FAN and
the Lamp FAN operating?
Only the Front
FAN stops.
Only the Lamp
FAN stops.
Replace the Temperature Sensor (R2911) on Front Thermistor C.B.A.
Replace the Temperature Sensor (R2901) on Lamp Thermistor C.B.A.
Replace the LAMP.
Replace LCD Power C.B.A.
Replace the LAMP. Still NG, replace LCD Power C.B.A.
Still NG, replace the Projection Unit.
Cleaning the Air Filter.
Replace LCD Power C.B.A.
Still NG, replace the Projection
Unit.
Replace the Front
FAN.
Replace the Lamp
FAN.