LG 55UH950V - TUNER Input Signal Strength Checking Method

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Signal Strength is too strong : Use attenuator (-10dB, -15dB, -20dB etc.)
Signal Strength is too weak : Use Signal Booster
Standard Repair Process Detail Technical Manual
TUNER input signal strength checking method
A. Video error_Video error, video lag/stop
<ALL MODELS>
A3
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