Question about Mitsubishi VS-5043 50" Rear Projection Television

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No Picture after it's been on a while. Audio OK.

Performs very well for a while (say 1-2hrs) then screen goes black (a thin red,green blue line shrinks to a pinpoint in about 1-2secs then only sound. Audio plays well. If I turn it off for 15-20 minutes it's fine. Seems more frequent the warmer the ambient room temp. Also I have a convergence problem that I can "fix" with a light tap (no kidding "light tap") to the side. The convergence problem goes away the longer the set has been on (say 20-30 minutes).

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  • Wayne McLurkin Apr 16, 2006

    "ic"= "integrated circuit"? Obviously I cant do this my self so any repair pros in the WashingtonDC area that may hel?

  • Wayne McLurkin Apr 16, 2006

    I forgot to say "Thanks"!

  • Wayne McLurkin May 10, 2006

    The technician said that the "green tube (lamp?)" had leaked and affected the vertical (Scan?) integrated circuit and another one right below what looks like a copper tube running to the lamp and that the tube was no longer manufactured. I assume this is the coolant leak that I've seen in so many comments about Mitsubishi CRT projections because he said the leak was glycol used in antifreeze and that it is very corrosive to circuit boards. He said that he could fix/replace the circuits (including the convergence ic in the bottom right hand corner, but it would be just a matter of time (indeterminate but likely a short time) before something else would go out. He said that the blue was weak and showed me blue halos around bright white objects projected on the screen. Effectively he said he said it was unusual to have gotten 9.5 years out of that particular "chassis" and to continue enjoying it while I can, but basically plan to buy another TV.

    He was very patient, appeared knowledgeable and took time to give me what sounded like a logical diagnosis. I've spent $70 in other ways and gotten much less out of it.

    The funny thing is after he put it back together the thing looks better than it has in a long time and the convergencce issue hardly happens anymore.

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  • Master
  • 3,130 Answers

Ok you have a vert sweep problem and yes its probably connected to in a way to the "tap and fix" problem! Seems to be n intermittant connection on the vertical out put Ic or maybe even on the rgb convergence ic?? The total loss of sweep though tells me that theres two differant problems! Maybe and intemittant connection on the vert output Ic as well as bad connections on the convergence ic??.

Posted on Apr 16, 2006

  • Larry  Dillon
    Larry Dillon Apr 18, 2006

    Wayne, Contact at this # for a Factory service center 800-332-2119 or check online at CustomerCare@meus.mea.com good luck and let us know how you made out please.

  • Larry  Dillon
    Larry Dillon May 10, 2006

    You can buy after market rebuilt crt but like the tech said its over the normal life of the set. glad your happy with the pros.

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