Sony KD-55A9F Service Manual page 38

2.5 LED BLINKING: 5x (Panel ID Read Error)
CS:DPJ
5-times blinking
Check
"+12.5V_TCON"
on T-CON Board
OK
Replace the Harness
Between G Board
and BM3J/DPJ
NG
Replace
the V-By-One FFC
NG
OK
NG
Replace
G Board
NG
Symptom
improve
Harness
Symptom
improve
V-By-One FFC
Replace
BM3J/DPJ Board
G Board
BM3J/DPJ Board
NG
Replace
Panel (T-con)
Symptom Symptom
improvement improvement
Panel (T-con)
38
SYS SET