Daewoo DPP-42A1LASB Service Manual page 48

Trouble Shooting
2 No Sound
Connect the cable
Is sound OK?
Y
Check Start
Is an image
displaying on
screen?
Y
Is the sound jack of external
device properly connected?
Y
Is mute key
pressed?
N
Is speaker cable
correctly connected?
(check P603, P604)
Y
Is input source
TV?
Y
N
Is the connection
between PA901 and
P901 OK?
N
Replace Sub B/D
Is sound OK?
Y
DONE
-47-
N
Go to the section
of 'No Image'
N
Connect the jack and
check the sound
Y
Cancel the mute and
check the sound
N
Connect the cable
and check the sound
N
Replace Main B/D
Y
N
Replace speakers
again
again
again