Sony A1E Series Service Manual page 31

TROUBLE SHOOTING
FLOW
3-4. NO SOUND (AUDIO HP/AUDIO OUT) 3-5. NO SOUND ( TUNER)
No Sound Audio
No Sound with
HP/Audio out
normal picture
[Headphone]
[Sound]
Yes
Headphone Volume
NO
[Headphone/Audio out] Increase Headphone Volume
is set to MIN?
Only RF tuner input?
is set to ?
No
YES
Replace BKA board
[Audio Out (Fixed)]
Replace BKA board
Please refer Audio
Check IC1000 (SOC)
troubleshooting
[Audio Out (Variable)]
Yes
Volume
Increase Volume
is set to MIN?
No
Replace BKA board
[Subwoofer]
Set [Headphone/Audio Out]
to [Headphone] or [Audio Out]
31
XBR-55/65A1E