Sony KD-43X8301C Service Manual page 105

TROUBLE SHOOTING
3-4-3. No Sound : MHL
No Sound
NG
Check the picture Refer to 4.6 MHL NO PICTURE
OK
OK
Check Sound by other TV set
Refer to 3.1 No Sound Audio
which is same model
NG
Check Source equipment
OK
by Reference TV set
Change B-Board.
(For example, Samsung TV(UN46ES7000),
Toshiba TV(42WL863), RB1 or RB2)
NG
Check the settings of
Source equipment
105
KD-43/49X8301C (FW-43/49X8370C), 8305C, 8307C, 8308C, 8309C