LG Electronics 42LT760H-ZA 4. Digital RF Trouble Shooting guide

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4. Digital RF Trouble Shooting guide
Check RF cable & signal.
Check DIF Signal
TU6500 Pin#10,11.
Check IIC Signal
TU6500 Pin#3,4.
Replace IC105.
Check tuner 5V power R6513.
Check X100 and application
circuit.
Replace TU6500.
Replace TU6500.
Check tuner 5V power R6513. Replace IC2404.
Replace X100.
N
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N
Y
Y
Y
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Y