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KDL-55NX810, KDL-55NX813, KDL-55NX815 - Sony TV Service Manual (repair manual). Page 43

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KDL-55NX810/813/815(AEP/UK/RUSS)
43
TROUBLE SHOOTING
3) 4 times blinkings (Backlight Driver Communication Error)
4 times Blinkings
Check the harness between the 
T-con board and the LED driver board,
between the G board and the
LED driver board.
LED Driver Board
(Panel)
Change the LED driver
board (Panel).
T-con Board
(Panel)
Harness
NG
OK
NG
OK
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