Sony KD-43X7 G Series Service Manual page 88

2.7 No Power DDCON/LDO
DDC: +1.0V_M3 check
START
Check fuse
F6006 / F6009
Is fuse OK?
yes
LD-Board model
Check input
F6006 / F6009 voltage
Is voltage >19.0V?
no
yes
Check EN signal
R6114
Is voltage >1.9V?
Check Vcc
C6102
Is voltage >5.3V?
no
yes
G-Board model
Check input
F6006 / F6009 voltage
Is voltage >12.0V?
yes
no
voltage
yes
no
voltage
yes
END
Change F6006
no
G-Board/LD-Board
MTK IC damage
Change IC6017
SG 55"/65"=G-Board model (PSU)
SG 43"/49"=LD-Board model (ADP)
88
SYS SET