Sony X930E Series Service Manual page 30

FLOW
2-5. LED BLINKING 6X (BACKLIGHT ERROR)
6-times blinking
Check Voltage of
"BL_ERR_DET"
at CL4459 on BMKP
Low
XBR-55/65X930E, 75X940E
Check
High
harness/connection
G/LD board to BMKP
Harness /
Connection OK
Harness /
Connection
broken
Replace
harness
No
improvement
LED driver or G board
Replace LD board or G board.
No
improvement
Replace
BMKP
No
Improvement
Replace
Panel
TROUBLE SHOOTING
Symptom
Improvement
Harness
Symptom
Improvement
LD board/G board
BMKP Board
Symptom
Improvement
Panel
Symptom
Improvement
G/LD Board: G board or LD board
30