Sony A1E Series Service Manual page 28

FLOW
2-6. LED BLINKING 7X (TEMPERATURE ERROR)
7-time blinking
Setting
circumstance is OK?
Temperature,
Ventilation, etc.
Yes
Replace BKA board,
and Aging a few
hours
Symptom
improvement
BKA board
XBR-55/65A1E
No
Set to another
location, etc.
NG
Panel
2-7. LED BLINKING 8X (4KBE ERROR)
8-time blinking
No
improvement
Replace
DKA board
Symptom
Improvement
DKA board
TROUBLE SHOOTING
Retry
28