1. Troubleshooting Shutdown Problems
5
Power LED’s Response to Shutdown Operation
O
n
c
e
3.0sec (interval)
Light
No Light
LED
Blinking
times
Contents Check Point
2
3
4
5
6
8
<Check point>
1
9
7
11
12
10
15V line abnormality
3.3V line abnormality
Power Supply abnormality
5V line abnormality
Scan Driver (1) abnormality
Sustain Driver abnormality
Communication error
Panel Status abnormality
Scan Driver (2) abnormality
FAN abnormality
Voltage for sound abnormality
REG. voltage abnormality
D Board (15V SOS)
D Board (3.3V SOS)
P Board (Power SOS)
D Board (5V SOS)
SC,SU,SD Board (SC Energy recovery circuit)
SS Board (SS Energy recovery circuit)
D Board
D,DG Board (Panel Status DET)
SC,SU,SD Board (SC Floating voltage area)
FAN
PA Board (Sound SOS)
PA, Board (PA SOS, Tuner SOS)
20 Communication error DT,DG Board
<LED Blinking timing>
6