No
(Power on)
Yes
(9 time blinks)
No
(Power on)
LED blinks
Detail error
Board may defect
9
Audio amplifier: SOUND_SOS
A/Speaker/Z
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.
Remove A12 connecter.
Power on.
Does LED blinks again?
L/R speaker
(wire of speaker)
A board
A
A02
IC8000
IC3800/01
AMP
F15V
SOUND_SOS
9 Blink
N SOS
A12
16V
From
P BOARD
56
Troubleshooting for LED Blinking ( 9 time blink )
Ex. 49/55EX600**
1
-
4
Z
IC3900/01
AMP
A
A02
IC8000
IC3800/01
AMP
F15V
SOUND_SOS
9 Blink
N SOS
A12A
16V
From
P BOARD
1
-
7
Z01
Z02
A21
External speaker
3
11
Yes
(9 time blinks)
Remove External Speaker.
Power on.
Does LED blinks again?
external speaker
(wire of speaker)
A board
No
(Power on)
Remove A21 conneter.
Power on.
Does LED blinks again?
Z board
Yes
(9 time blinks)
(Only 65EZ1000)
Содержание 55ES Series
Страница 4: ...1 Board Layout 4 ...
Страница 10: ...10 2 Video Signal Processing ...
Страница 19: ...19 3 Power Supply 3 1 Power Board Structure ...
Страница 44: ...44 4 SOS Protection Circuit and Troubleshooting ...
Страница 61: ...5 Information of OLED model 61 ...