Sony KD-49X9 F Series Service Manual page 31

2.4 LED BLINKING 4x (BCM Error)
BM2A
4-time blinking
(BCM Error)
Check "LD_RDY"
At CL4460
on BM2A Board
High
BM2A Board
Detail of 4x LED Blinking
Error Number of STBY
Item LED flashing
Trinity LD_ERR
3
BCM_ERR
Trinity3 Board: BM2A
Low
NG
Replace
LD board
OK
LD Board
Segment Description
4 CU LED voltage error detection with LD IC
4 CU Only LD IC initialize or I2C communication error detection.
Panel
(Supplementary
31
information)