Question about Vizio VF551XVT 55 in. HDTV

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New LCD TV, horizontal grey lines, vertical grey bands

Just got the TV, and it has a clear blue bar running vertically along left side of screen, about 1 inch, not affected by screen positioning. As for the picture area itself, there are vertical bands, like trails, which result from the menu data - like the channel numbers. The width of these grayish columns is dependent on the width of the data. Lastly, whole screen has horizontal thin gray 1cm lines in height like writing paper. (I'm about to send the TV back but figured I'd ask). Thanks.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 103 Answers

SOURCE: blue vertical stripe

The bad news, it sounds like tou have a bad plasma panel.One of the vertical drive arrays are in the process of failing.This part is part of the display panel.

Posted on Mar 03, 2008

jerryg50
  • 1667 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

  • 1 Answer

SOURCE: LCD TV - Vertical Blue line

use menu and h/v then change then move to higher level and it will take it away.

Posted on Aug 24, 2008

DRACO A5OG
  • 22 Answers

SOURCE: Vertical Red Line

Fixed!

Spoke with PartStore.com, rep stated 6871QCH038C (038C) is the superceded replacement for the defective prone OEM 6871QCH038A (038A). They and others offer the 6781QCH060Q (060Q) for $50 - $100 more. I opted for the 038C, but I was concerned about the title of the part which states "HAND INSERT"... PartStore.com rep stated it is in fact a board and there is no soldering needed, just "plug and play". DONE, paid only $120.95 + next day shipping for $29.95.

Since I took the TV apart before, it was a breeze and took about 2 hours, start to finish.

Important note, remember to remove the two 1" square spunge type heat sinks/pads the new board needs those for a proper installation and protection of the certain component.

Also you need two small zip ties to replace the ones you are going to clip off.

Added Bonus, the new board fixed other issues:

1. At times I would get a squeegly red line go across the screen. I thought it was the source (cable) but it is gone now.

2. Screen Shift, when I use the XBox for Games or DVD/HDVD the screen would shift. Very annoying, prior to swap out, recently the screen started to shift watching cable. Now it is no-longer an issue.

I am really pleased with my DIY repair and wanted to share.

The damn Vizio Out of Warranty Service wanted $360 for a service call which included the part for $125 plus they take my bad board for exchange.

6871QCH038C $120.95 http://www.partstore.com/Part/LG+Electronics+Incorporated/LG+Electronics%2fZenit h/6871QCH038C/New.aspx
Over Night Shipping #29.95
DIY FREE biggrin.gif

Posted on Dec 31, 2008

freetek
  • 5568 Answers

SOURCE: left half of screen is filled with vertical

If I am right, this is an expensive problem.
The minute pixels that make up the display are turned off and on by circuits arranged in an X-Y matrix. To avoid using one circuit to control each pixel, the circuits are rapidly scanned at a rate higher than the eye can detect.
One or more of the circuits that do the scanning have failed on your set and the ugly part is, the display panels often have these mounted on the display itself forming a 'package' that speeds assembly and are made only by a few companies. If yours is one of these, the entire panel would have to be replaced since the integrated circuits used are very small and have pin spacings that pretty much preclude replacement by hand since they were originally placed by robots.
I hope for your sake the display panel and its control circuits are separate and the panel is still fine since the cost of an integrated replacement may prove to be about 1/2 to 3/4 of the cost of a new set.

Posted on Dec 12, 2009

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