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

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PT 47 convergence IC's? box? both?

Well there seem to be a lot of people recently with the same problem as mine so I've got an idea as to what it is. I've done the "POWER/ACTION self-check reset" the unplugging and found the tech menu (which was impossible to read on the screen so couldn't do anything with it). The self check tells me all systems are OK. The problem is with the green when trying to set the convergence using Convergence 1 the horizontal line in the "big green cross" is high and can be moved but not to where it should be it also is a bit wavy, the vertical line is a bit distorted at the top and progresses to not even making it to the bottom of the screen. Moving on to the next screen (lining up red, blue, green in the middle of the screen) the green cross is high to the point where I can line up red and blue and the very top of them is only the bottom of the green horizontal line. Convergence 2 is fairly impossible to deal with maybe getting one cross to line up if any. Needless to say the picture has everything with a headache inducing "green ghost" effect. This would lead me to believe I need to replace my IC's. But I also have an "hourglass effect" going on with the green. The bottom of the screen when watching something has a curved band of green lines above this is where the "ghosting" comes in below it things are clear and oviously just the reds and blues. The top of the screen has a bit of this but it's not as pronounced. I saw this problem elsewhere up here and the suggestion was the digital convergence box. Don't know which one I should look into first so any help would be appreciated (and yes I'd love to have the tech manual emailed to me!!). Also would appreciate the best place to look into getting the parts needed to fix this up. Thank You Very much!!

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  • Brian Kriley Apr 21, 2007

    Thank you joshv one more question if I could. The IC's are 392-110's but I've been reading that may people "upgrade" 110's with 180's. They seem to be a little less prone to failure due to heat etc. if this is true sounds like a good idea for a few more bucks. Also have read that if you replace the IC's its a good idea to replace the fusible resistors around them because they are likely to fail if the chips fail. True?



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I seem to be having the same problem as Silentq2... Just browsing these boards makes it seem like everyones panasonic tv's are all going bad about the same time.. strange..

Posted on May 12, 2007

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Sears has tv parts. I was able to get my convergence ic within a week from them.

Posted on Apr 22, 2007

  • kat Griff Apr 22, 2007

    I got mine from sears and had it within a week. Should have bought 2. Mine for a maganovox was 35 + 12sh


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Always suspect the IC's first, digital convergence prblems are actually pretty rare IC's go everyday. I'd check partsore .com Generics usually work fine, they are probably STK392-110's but check to make sure.

Posted on Apr 21, 2007

  • josh vannoy Apr 23, 2007

    the 180's are rated a little higher and what your saying is true in theory but I have had some trouble a few times where they just don't seem to work, they will either go again fast or not let the TV align quite right. So I don't mess with trying to sub, but I do this job at least a couple of times a week it would probably be fine in your tv. check the fuseable and resistors, they're either bad now or will be fine in the future


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