Question about Vizio VF550M 55 in. LCD HDTV

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VF550M Screen starts disappearing from bottom up with red & blue line on right side of screen.

The TV starts up and works fine with sound & picture for about the first 30 minutes. Slowly the picture on about 8" of the right side of the TV becomes foggy & the picture seems to be lagging behind. Eventually this clears up and there seems to be a shaded portion in the middle of the screen followed by a rectangle block in of about 1/4 of the screen in the upper left corner. This eventually fades away then the screen starts to slowly turn black in a straight line from top to bottom with eventually only having 6" of clear picture remaining at the top of the screen. This area us all greyish black with defined red & blue lines on the right side of the screen.

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  • jrabert
    jrabert Feb 13, 2014

    I just replaced the T con board today, but it appears this is not the problem

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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jerryg50
  • 1673 Answers

SOURCE: Blue color spread over the pictures

This sounds classic to a thermo problem where a part(s) are becoming thermo sensitive with aga and use. When the set is cold and then warmed up, the defective part(s) is changing characteristics.

Some components became thermo sensitive that are driving the display. Or an embeded component in the display itself became thermo sensitive. It is very possible that the fault is on the board that does the X - Y addressing or on the backplane electronics of the display screen itself.

Using the set with defective components is a bad idea. If the part(s) fail completely and go shorted or opened, other more costly damage can be done.

The service rep for the manufacture of your set is equiped and trained to be able to troubleshoot and service your set.

You will have to take the set in to have it serviced.

Jerry G.

Posted on Apr 17, 2008

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phongnv
  • 56 Answers

SOURCE: visio 42 hd plasma tv 1/2 the display goes out

Replace Y drive should solve the problem.

Posted on Feb 16, 2009

  • 289 Answers

SOURCE: ORANGE OR RED VERTICLE LINE DOWN RIGHT SIDE OF SCREEN?

hi..the probelm is due to the video circuit board.
only when you have a problem with the video
circuit board you will get such type of faults.so
you have to check the video board immediately.
check it out..
thank u..
rate me..

Posted on Feb 28, 2009

  • 1779 Answers

SOURCE: red line down right side of screen

I would have a tech come out and look at it. Sometimes the ribbon connectors from the upper or lower buffer boards have poor or corroded contacts. Should'nt be a major deal since it comes and goes.

Posted on Apr 21, 2009

alpug
  • 1961 Answers

SOURCE: My Vizio SV471XVT worked perfectly

hi.open the back cover of your TV and access the main board.If you can find a small tap switch at the main board press it while the power switch is on it will reset the system back to normal...If resetting dont work you need to t-con board same error appear when t-con board is defective.... try to re insert all terminal connectors sometimes a loose connector could also result in the same problem..good luck let me hear if this solves your problem..post back..

Posted on May 08, 2011

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