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I have a samsung LN52A550 LCD tv set and it won't show anything with a HD signal. If I hook up a...
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I have a samsung LN52A550 LCD tv set and it won't show anything with a HD signal. If I hook up a 480I signal the tv will work,but if I hook up the tv antenna or any other hd source to it,the tv goes crazy and makes noise and I see a whole set of vertical color bars like a test pattern generator,then hen the TV will click on and off. If I disconnect the HD source,then the TV will come on and say weak or no signal.