Sony KDL-60R510A Service Manual page 24

3-4. NO SOUND
No Sound
Check if TV is
set to Mute
No
Check the
"Speakers setting"
"TV Speakers"
Change the speaker
harness
OK Symptom
improvement
Speaker Harness
issue
KDL-60R510A(CN8, UC2, LA1)
Yes
Change to
Un-mute
"Audio System"
Change to
"TV Speaker"
NG
Replace
Main board
NG
Change
Speaker
Symptom
improvement
Main board issue
OK
TROUBLE SHOOTING
24