Sony KD-49X9 F Series Service Manual page 34

2.6 LED BLINKING: 6x (Backlight Error)
BM2A
6-times blinking
Check Voltage of
"BL_ERR_DET"
High
at CL4459 on BM2A
Low
Check
harness/connection
G board to BM2A
Harness /
Connection OK
Harness /
Symptom
Connection
Improvement
broken
Replace
harness
No
improvement
G board
Replace G board.
No
improvement
Replace
BM2A
No
Improvement
Replace
Panel
Harness
Symptom
Improvement
BM2A Board
Symptom
Improvement
Panel
Symptom
Improvement
(Supplementary
information)
G board
34