Sony GN3TR - Led Blinking 7 X (Temperature Error); Led Blinking 8 X (4 Kpq Error)

XBR-49/55/65/75X900E
TROUBLE SHOOTING
FLOW
2-6. LED BLINKING 7X (TEMPERATURE ERROR)
31
7-times blinking
BMKS/BMKP board
Yes
Panel
NG
Replace BMKS/BMKP
board, and Aging a few
hours
Setting
circumstance is OK?
Temperature,
Ventilation, etc.
Set to another
location, etc.
No
Symptom
improvement
2-7. LED BLINKING 8X (4KPQ ERROR)
8-times blinking
Replace
BMKS board
BMKS board
Symptom
Improvement
Other flows
No
improvement