Sony KD-55X8 G Series Service Manual page 52

2.2 LED Blinking: 3x (Audio Error)
2.2 LED Blinking: 3x (Audio Error)
LED 3x blinking
(Audio Error)
(1) BSL-PWB
VDD-GND short ?
No
Power Off
(2) BSL-PWB
Check
+3.3V_Audio short ?
No
(3) BSL-PWB
Fuse broken ?
No
(4) POWER_AU* check
Power On
POWER_AU is supplied to
BSL-PWB for a moment.
Check
Before LED 3x blinking?
No
*POWER_AU is same as VDD
Yes
Yes
Replace
BSL-PWB
Yes
Yes
TV Business Division
OK
Replace
G-PWB or LD2-PWB
or AC Adapter
NG
Measure the Speaker
Yes
impedance by multi-meter
Impedance out of range
(6Ω to 10Ω)
No
**Measure the Tweeter
Yes
capacitance by multi-meter
Capacitance out of range
(0.8uF to 1.2uF)
No
Speaker Harness
**Only applicable for size 55, 65, 75, 85
Finish
Replace
Speaker
Replace
Tweeter
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