Question about Samsung HCN4226W 42" Rear Projection HDTV-Ready Television

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Samsung tv wont turn on

Red light blinks sound but wont stay on and no picture

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Re: samsung tv wont turn on

I had a similar problem and turned out to be the convergence board. Here is the part # and where I got it from.

Posted on Jan 21, 2008

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Re: samsung tv wont turn on

I got a manual for this set, pulled the power supply board to find the STK-X6545 regulator. After reading another post - to look for the -20 DC on the convergence board, reinstalled the power supply, and pulled the 20 volt supply off of the convergence board. It then came on, without convergence of course. So I got brave and reconnected the convergence - and now FM ! the set is working. I hate when this happens. I do notice that the convergence IC'c run very hot. I have a feeling this is going to go out again, and I will replace the convergence board if it does. Thanks for your suggestions. Samsung must have changed the part number several times on this part, as I cannot cross reference the number that is currently installed. I must assume that the Parts Depot number is a direct replacement ? Thanks !

Posted on Jan 21, 2008

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