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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. 49/55EX600**
Remove A12 connecter.
Power on.
Does LED blinks again?
No
(Power on)
Yes
(9 time blinks)
A board
A12
IC3800/01
16V
1
F15V
-
From
4
P BOARD
A02
Detail error
Audio amplifier: SOUND_SOS
(Only 65EZ1000)
Remove External Speaker.
L/R speaker
(wire of speaker)
(9 time blinks)
(9 time blinks)
IC8000
9 Blink
AMP
SOUND_SOS
A
N SOS
Power on.
No
Does LED blinks again?
(Power on)
Yes
Remove A21 conneter.
Power on.
No
Does LED blinks again?
(Power on)
Yes
Z board
A board
A12A
16V
1
F15V
-
From
7
P BOARD
A02
Board may defect
A/Speaker/Z
external speaker
(wire of speaker)
External speaker
Z01
IC3900/01
AMP
Z02
3
11
A21
IC3800/01
AMP
SOUND_SOS
N SOS
Z
IC8000
9 Blink
A
56
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