Sony KD-43X8301C Service Manual page 101

3-3-7. 5 Times Blinking (Panel Communication Error)
5-times blinking
Check
"+12.5V_TCON" at
CN9000
on the B-Board
OK
Replace the Harness
Between G-Board
and B-Board
NG
Replace
the V-By-One FFC
NG
KD-43/49X8301C (FW-43/49X8370C), 8305C, 8307C, 8308C, 8309C
NG
OK
Replace G-Board
NG
Symptom
improve
Harness is
suspicious
Symptom
improve
V-By-One FFC
is suspicious
Change
B-Board
G-Board is
suspicious
B-Board is
suspicious
TROUBLE SHOOTING
NG
Change
Panel (T-con)
Symptom Symptom
improvement improvement
Panel (T-Con) is
suspicious
101