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Troubleshooting for LED Blinking ( Quick 1 / 3 time blink )
LED blinks
Quick 1 / 3
(only for Asia/Latin
ES5**/6** )
F15V(16V) is supplied from P board. If the F15V /SUB voltage is not supplied
LED blinks quickly 1 or 3 times.
Ex. TH-**ES630** series
Power on.
Check if voltage P15V at
pin 1,3,5 of A02
connector before LED
blinks?
A board
Detail error
Power on problem
(No F15V/SUB3.3V/SUB1.5V voltage)
Remove P2 connector.
No
Check if short-circuit at
pin 1,3,5 of A02
connector?
Yes
(15V)
A board
P
16V
No
P board
Yes
SRV-15V
(Shorted)
P2
Q7403
16V
1
2
3
Board may defect
P/A
IC5500
12V
IC4900
A02
AMP
1
3
5
IC5420
5V
SUB5V
IC5400
3.3V
SUB3.3V
IC8103
1.2V
SUB1.1V
1.5V
SUB1.5V
IC8101
A
IC8000
55
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