Sony KD-55X8 G Series Service Manual page 61

3.1 No Sound Audio
No Sound
Speaker
Check
・[Speakers] setting is [TV Speakers]?
・Nothing is connected to Headphone terminal?
・Volume setting is not too small?
OK
Measure the Speaker
impedance by multi-meter.
Impedance out of range
(6Ω to 10Ω)
OK
*Measure the Tweeter
capacitance by multi-meter.
Capacitance out of range
(0.8uF to 1.2uF)
OK
Confirm the speaker
harness
Cut or shorted
to the chassis ?
OK
*Only applicable for size 55, 65, 75,
85
TV Business Division
NG
Replace Speaker
NG
NG
Replace Tweeter
NG
NG
Replace Speaker-Harness
NG
Replace BSL-PWB
then OK ?
NG
Replace G-PWB/L-PWB
and G-B Harness
OK
OK
OK
Finish
61
OK
61