Anonymous Posted on Aug 26, 2014

Red and green lines on screen

Have it fixed 3 times now warranty out green and red lines on screen in dark areas of screen (like black coats or dark guide list

1 Answer

Mike M

Vizio Master 3,349 Answers
Posted on Aug 27, 2014

Mike M

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Bud Martin

11361 Answers
Posted on Jun 27, 2010

SOURCE: I have the common "color contouring" problem (red

The T-CON board get the power from the logic board switched transistor that supplies the voltage to the T-CON board. Check to see if the 12vdc feeding the T-CON board is clean voltage and not higher than 12vdc. The problem can also be the logic board which sends the signals to the T-CON board. Does cooling the T-CON board with electronic freeze spray make the problem goes away. Some of the work I have to do is to install a small DC fan to keep the T-CON board cool and some time using heat sinks.
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Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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Anonymous

1099 Answers
Posted on Aug 03, 2010

SOURCE: My Vizio SV470XVT1A, when turned

Hi,

All plasma an lcd TVs have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They can sometimes be fixed, but it is a pain. An yes I have done it, and the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em.

Good luck.

The Knight

76851 Answers
Posted on Jun 10, 2012

SOURCE: Why does my 26" Vizio TV have green vertical lines?

The fault is with its T'Con board.

The Knight

76851 Answers
Posted on Jun 10, 2012

SOURCE: How do I fix the vertical green lines on my Vizio 26

Check and replace T'Con board.

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