KDL-55HX920, KDL-65HX920 (serv.man2) - Sony TV Service Manual (repair manual). Page 78

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KDL-55/65HX920(K)
78
TROUBLE SHOOTING
3-6. NO SOUND
No Sound
Check the Speaker
Harness
Speaker Harness
Replace
the B* Board
B* Board
Speaker
OK
NG
NG
OK
Check the 
“Speakers setting”
Change to 
“TV Speaker”
“Audio System”
“TV Speakers”
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