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Sony KD-55XD9305 Service Manual page 26

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1-3. NO POWER DDCON/LDO
LDOs check
START
yes
no
Check Vcc voltage
C9xxx
Is voltage >3V?
yes
no
Check Enable pin
voltage
Is voltage >3V?
yes
Change LDO IC
KD-55/65XD9305
Check +3.3V_DDC_OUT
DDCON (IC409)
1-2 No Power U-Com Failure
TROUBLE SHOOTING
26

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Kd-65xd9305

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