Sony KD-49X7 D Series Service Manual page 41

2.0 LED Blinking: 2x (Main power Error)
BFM（G* Board model）
2-time blinking
Check "+12V_MAIN_IN"
at pin 11/13 of CN400
on BFM Board,
Voltage > 13.2V ?
No
BFM Board
Yes
G* Board
TV Business Division
BFM（AC adapter model）
2-time blinking
Check "+12V_Main"
Yes
on R516 or R517
on BFM Board,
Voltage > 13.2V ?
No
BFM Board
41
Check
"+19.5_12.5V_MAIN"
Yes
At pin 15/16 of CN400
AC adapter
on BFM Board,
Voltage > 23V ?
No
BFM Board (IC409
or parts around)
41