Question about Samsung PCN5425R 54" Rear Projection Television

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Curved picture and double images

The picture on my tv appears to be pushed in, curved in the middle, and also has a double image. What could that be?

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Re: Curved picture and double images - Samsung PCN5425R 54" Rear Projection Television Projection Televisions

Akai 42" 1080i hdtv big gray one

Posted on Oct 10, 2008

Re: Curved picture and double images - Samsung PCN5425R 54" Rear Projection Television Projection Televisions

Pincushion circuit

Posted on Apr 11, 2007

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Re: Curved picture and double images

I had noticed your question before posting mine, since it appears no one had given you a solution thought i would share the solution given to me. Two different techs told me the same thing it would need a new convergence board. I ordered my board today hopefully have fixed soon as it arrives. I noticed your question has been hear awhile but thought maybe if you still needed some help I would share. It is going to save me $300 doing it myself, but if you are going to try make sure to talk to one of the techs first on live chat. Goodluck

Posted on Apr 11, 2007

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Lines are curved image brightness is faded and there is a slight double image that makes everything fuzzy.

It seems problem with convergence output section in tv, check convergence two output ICs and replace them to fix the picture issue.
If you have electronics knowledge and parts replacement experience in circuit boards then can attempt by yourself or ask local tv repair shop to help you.

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The convergence IC's need to be replaced. The generic part # on them is STK392-110. This is not easily done by yourself.

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Good Day, kizzysep;
Curved picture, this indicates that you have a convergence circuit that has failed, if your TV is a rear projection. I would recommend that you contact an Authorized Service Center for your TV and have them give an estimate before repair.
Depending on the age of your TV it might be wiser to buy a new TV, but get an estimate first.
Good Luck, big IRISH.

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hello consumer MG,
you need to change your STK392-110. Replacing those 2 chip will fix your set.
best regards

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This sounds like your convergence correction amplifiers have malfunctioned. These Integrated Circuits often burn out after a few years (STK392-110) they can be replaced with a higher version (STK392-150) However it is important to have the biasing circuitry checked to make sure nothing has burnt out as a result of the ICs malfunctioning. If you have a background in electronics you can repair this problem with very little effort, however if you do not have a background in electronics, I would suggest that you have your TV serviced by a qualified TV technician.


I hope this helps,


Thank you,



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