Sony KD-55A9F - LED Blinking: 3 X (DC Alert Error); Detail of 3 X LED Blinking

(Supplementary
information)
2.1 LED Blinking: 3x (DC Alert Error)
31
3-time blinking
(DC Alert)
Check “5.0V_VBUS”
at C431 on BM3 board
4.959V<Voltage<5.285V?
Retry
OK
NG
BM3 Board
Check “12.7V_MAIN”
at pin 6~8 of CN800
on BM3 board,
Voltage = 12.2~13.2V?
BM3
NG
G Board
OK
Error Item Number of STBY LED flashing Description
Uroboros DC_ALERT 3 Main board 5V power rail monitoring
AUD_ERR 3 Audio amp error detection
Detail of 3x LED Blinking
SYSSET
2018/09/1904:47:37(GMT+09:00)