Question about Panasonic PT-47WX49 47" Rear Projection Television

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PANASONIC PT-51DX80A hello, my buddy has this tv and i am electronic smart but looking at other posts it lloks like we have a bad resister on the board but i will let you decide that, problem : i went over there to look at tv (had great picture) i asked what the problem was and he says sometimes the red horizontal moves over 1" to the left. so i watched it for about 20 mins tuned it off and then on and it did it. so i go in the menu and try to adjust the convergence and all colors work except the red, the red will move un and down but not left and right. thats the only problem with the tv set, thanks for your help! Lewis Jensen

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Normally, the main cause of this problem is the solder connection under the convergence IC's.
You would see rings around the legs that have bad solder joints.
My shop would replace both of the IC's.
I don't have a schematic in front of me, but, I'm pretty sure the IC's are STK392-110. We use the STK392-150 in place of them since they are a heartier IC.
When replacing these IC's, remember to use semiconductor compound on the back side of the IC when placing the parts against the heat sink.
Any questions, respond to this post and I will reply.

Posted on Jan 27, 2008

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