KDL-40HX750, KDL-46HX750, KDL-55HX750 - Sony TV Service Manual (repair manual). Page 91

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KDL-40/46/55HX750(CH)
91
TROUBLE SHOOTING
5) 7 times blinking (Temperature Error)
7 times blinking
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
Set to another
Location, etc.
NO
YES
Change B* Board,
and Aging a few hours
B* Board
OK
Panel
6) 8 times blinking (Software Error)
8 times blinking
If the Symptom
Improved by changing
the WIFI module
B* Board
NO
WIFI Module
Symptom 
improvement
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