Question about Mitsubishi WS-55809 55" Rear Projection Television

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Messed up Image

Okay, so here's the problem.  I bought the TV back in 1999 and up until around June I had no problems with it.  Then one night, the video seemed to flicker slightly when I was watching a dvd.  Thought nothing of it, went to bed.  Next day, turned the tv on and here's what everything looked like:

I did some initial research but came up empty handed and only to try a hard reset by unplugging everything, letting it sit and trying again.  I did this and 4 days later (without using it) I plugged everything in and it worked fine.  I didn't use it much over the course of the next few months, but it did this same exact thing twice.  It seems like it'll act like this, then after sitting off it'll go back to normal for a while, then right back to this.

Most recently, I turned it on, everything was fine.  Let it sit with my satelite on for a while, then it randomly went right back to this.  I didn't hear any clicks or pops when it switched back to this messed up mode.

Here's a closeup of the screen:

Some reading makes it seem like the convergence is way off, but I can't adjust it through the TV's screen settings.

Anyone know what's wrong?

Seems convergence is out. Blurred picture.

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  • ssamford3 Jul 10, 2008

    I have a WS-55809 I bought in 2002. After a couple of years it started to devlope the distorted picture. One minute it was OK and then the next it would go to black and white and distortion. i had the service tech come out and they replaced a circuit board. Everything was fine since then and I primarily watch it via a dish HD receiver and has a excellent picture. I also have coax cable service but when I switch to cable TV the picture is OK for a while and then turns black and white and distorted. I've replaced cables twice. If I tap on the side of the TV it will clear up for an hour or just for a minute or two. Any ideas.

  • sadtvguy Aug 12, 2008

    Yep, I got the same problem with my Mitsu. 55" HD... It looks like your looking at the screen through a fish eye lens. Center is clearer but the colors in the corners don't overlay like they should... Some times if I give it a love tap the colors converge again. But it's getting worse every day... Kinda sucks...... Help?

  • lstrad Aug 27, 2008

    I have to keep the TV on all day because my screen looks like a fish bowl during the first two hours the TV is on.  What needs to happen to fix this problem?


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You need to replace both of the convergence ICs. They are both STK392-570 you can get replacement ICs at the following link and they provide free instalation instructions with pictures on how to replace the ICs. Here is the link.

Posted on Jul 08, 2008

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