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Troubleshooting for LED Blinking ( 9 time blink )
LED blinks
9
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. 43/49DS630** series
16V
From P BOARD
Detail error
Audio amplifier: SOUND_SOS
Remove A12 connecter.
Power on.
Does LED blinks again?
No (Power on)
L/R speaker
(wire of speaker)
A12
F15V
1
3
5
A02
A board
Yes
(9 time blinks)
IC4900
SOUND_SOS
AMP
Board may defect
A/Speaker
IC8000
N SOS
9 Blink
A
47
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