im no tv repair man but my samsung had the same problem and i fixd it myself if its a samsung model code sp43h3htx/xeu the you need to take of the front speakers and to the left you will see 6 screws the middle ones are for focus and the two at each side are for the colour just adjust them you dont have to move them very much, i hope it works for you my tv is fine now
rachel
September 2008
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