Sony KD-55X8 G Series Service Manual page 54

2.5 LED Blinking: 5x (Panel ID Read Error)
BSL
5-times blinking
Check
"+12.7V_TCON"
on T-CON board
OK
Replace the Harness
from G/LD Board
to BSL & T-CON board
NG
Replace
the V-By-One FFC
NG
G/LD Board: G board or LD board
OK
NG
Replace
G/LD Board
G/LD Board
NG
Symptom
recover
Harness
Symptom
recover
V-By-One FFC
is suspicious
NG
Replace
BSL Board Panel (T-con)
Symptom
recover
BSL Board Panel (T-Con)
Replace
Symptom
recover
54