Sony KDL-32EX721 Service Manual page 64

TROUBLE SHOOTING
3-6. NO SOUND
No Sound
"Audio System"
Check the Change to
"Speakers setting" "TV Speaker"
"TV Speakers"
NG OK
Check the Speaker Replace
B* Board
Harness
the B* Board
OK
NG
Speaker Harness Speaker
64
KDL-32/40EX720,721,723,724(AEP/UK)