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Troubleshooting for LED Blinking ( 9 time blink )
LED blinks
9
Audio amplifier: SOUND_SOS
Audio amplifier is sourced power F15V from P board. If the amplifier work abnormally (may due
to short-circuit or overload), the SOUND_SOS signal will go low level and be detected by
IC8001
LED blinks 9 times.
Ex. 55FX600*
Remove A12 connecter.
Power on.
Does LED blinks again?
Yes
(9 time blinks)
A board
Detail error
L/R speaker
(wire of speaker)
No
(Power on)
16V
1
F15V
-
From
4
P BOARD
A02
A12
IC8000
IC3800/01
9 Blink
AMP
SOUND_SOS
N SOS
Board may defect
A/Speaker
A
65
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