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Sony FW-43XE8 Series Service Manual page 45

Gn3tr chassis

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1.3 No Power DDCON/LDO
1.3 No Power DDCON/LDO
SW: +3.3V_MAIN check
START
no
Check VG signal
Q407 #pin1
Is voltage > 3.0V?
yes
yes
Check VB signal
Q406 #pin1
Is voltage > 3.0V?
no
1.2 No Power U-Com Failure
Change Q407
Change Q406
45

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