samsung 21 inches tv crt type.when turn on the tv is ok but in a few secound or in a mins. becomes black and white?

sjunnefergibe

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Sep 2, 2015
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samsung 21 inches tv crt type.when turn on the tv is ok but in a few secound or in a mins. becomes black and white? plese responce my letter i need one who guide what are supposed to do, what parts replace or reheat. my feeling is sytem section but i cant sure, i need help. tnxs im waiting 4ur response
 

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