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LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
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.
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