Diagnostic items, and prediction of malfunction location
Diagnosis item
|
Number of times the power indicator blinks
|
Probable cause location
|
Defected symptoms
|
Temp: over
|
2 times
|
The periphery of
lamp heats up abnormally
|
No picture/sound
|
Lamp cover
|
3 times
|
Lamp cover is not attached securely
|
No picture/no sound
|
Fan error
|
4 times
|
Fan 1,3,4 power is not supplied. Fan connector is not
attached securely
|
No picture/no sound
|
Lamp driver
|
5 times
|
Lamp driver is faulty
|
No picture/no sound
|
Power error
|
6 times
|
D5V is not supplied
|
No picture/no sound
|
Audio prot
|
7 times
|
Speaker line is shorted
|
No picture/no sound
|
Power OVP
|
8 times
|
7V is over
|
No picture/no sound
|
Device error
|
9 times
|
Temperature sensors, bus decoder Ics {IC2000,
3150,32008804}
|
No picture
|
Lamp error
|
Lamp LED flashes
|
Lamp for the light source burned out
|
No picture/no sound
|
