Question about Sylvania LC420SS8 LCD TV
The humming is caused by the power source, a part (most likely a capacitor) has failed and acts as a short overstressing the source. If your electronics skills aren't good enough for you to open the tv, locate the failing capacitor and replace it, then call a repair guy ASAP, longer you wait bigger the damage becomes.
Posted on Sep 06, 2010
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Posted on Jan 02, 2017
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