Sanyo PDG-DSU21N Service Manual page 33

Fail to light up
Check LED
indication
OK
Check
Lamp life
OK
Check Power board
380V output
OK
Check Ballast
OK
Check
Mainboard
OK
Check CW
Rotation while power on
PDG-DSU21
Refer to LED
NG
indicator and follow
indicative actions
NG
Replace
Lamp Module
NG
Replace
Power board
NG
Replace
Ballast
NG
Replace
Mainboard
NG
Replace
Optical Engine
No Volume
Check
Speaker
OK
Check
I/Oboard
OK
Check
Mainboard
29
NG
Replace
Speaker
NG
Replace
I/Oboard
NG
Replace
Mainboard