Sony XBR-55X850D Service Manual page 37

FLOW
2-6. LED BLINKING 7X (TEMPERATURE ERROR)
7-time blinking
Setting
circumstance is OK? No
Temperature,
Ventilation, etc.
Yes
No
Change B* Board,
improvement
and Aging a few
hours
Symptom
improvement
B* Board NG
XBR-55X850D/855D/857D, 65X850D/855D/857D, 75X850D/855D/857D
Set to another
location, etc.
Panel
Check I2C_C bus
Yes
Temp sensor
communication OK?
(IC1400 #1,#6)
No
I2C_C bus dumping or
Muffin check
IC1400
TROUBLE SHOOTING
37