After unplugging the tv, hold and press the physical power button on your tv for about 30 seconds, that will drain most of the electricity stored in most of the motherboards components, however some energy will be stored in some capacitors; mainly on the power supply side but eventually they also will be depleted of it as well as time goes by.
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After unplugging the tv, hold and press the physical power button on your tv for about 30 seconds, that will drain most of the electricity stored in most of the motherboards components, however some energy will be stored in some capacitors; mainly on the power supply side but eventually they also will be depleted of it as well as time goes by.
to answer your question, it's a low risk repair .