Sony KD-43X7 G Series Service Manual page 86

2.7 No Power DDCON/LDO
SW: +5V_MAIN check
START
no
Check VG signal
Q6007 #pin1
Is voltage > 4.9V?
yes
yes
Check VB signal
Q6006 #pin2
Is voltage > 1.9V?
no
Other Issue
Change Q6007
Change Q6006
86
SYS SET