Sony KD-55A9F Service Manual page 41

2.7 LED BLINKING: 7x (Temperature Error)
BM3/HUS
7-time blinking
Setting
circumstance is OK?
Temperature,
Ventilation, etc.
Yes
Replace Harness
from BM3 to HUS
board
NG
Replace HUS
Board, and Aging a few
hours
NG
1
No
Set to another
location, etc.
Symptom
improvement
Harness
Symptom
improvement
HUS board
1
Symptom
Replace BM3
improvement
Board, and Aging a few
hours
NG
Panel
BM3 Board
41
SYS SET