Question about Sony Bravia KDL-46V4100 46 in. LCD HDTV

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I have a 46" Sony Bravia TV that has colored verticle lines about 2-3" wide just left of center.

Verticle lines about 2-3' wide just left of center

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Hi,
Yor tv have problem with T con board. T con board is one which drives the pixels of the LCD panel. If any of the driver satge in the T con board is faulty then this problem can occur.

Some times bad contacts on the connections of the t con board can cause same problem. Remove the tv and find out the t con bard. Remove the connections to it and the reconnect the connections. Then check, if the problem remains the same then the tv need a new T con board.

You have didn't mentaioned any model number of your tv. So it is not possible to show you exactly how T con board looks.

Normally in all lcd tvs the tcon board is place on the bottom or top middile position. Which will be cover with metal cover or aluminium foil.

Here I have added a link which will lead you to the picture of T con board for toshiba.( Not exact one)

T con
http://electro-medical.blogspot.in/

Posted on Apr 30, 2015

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You need to describe these lines better. Are they moving or stationary? Are they very fine lines with sharp edges or are they more like bands with soft edges? How many lines do you see, and how wide are they (compared to the screen width)?

Fine lines that are stationary: defect in the electronics causing a vertical row of pixels to be dead or stuck. Can only be fixed by replacing major parts.

Broad lines with soft edges that move: could be electrical "hum" interference. Make sure you are using a grounded (3-pin) power plug, and that the outlet is properly wired. (Take the TV to a another location and see if the problem goes away).

Make sure you don't have fluorescent light fixtures nearby--they can interfere with the picture if the bulbs or ballast is defective. Could mean tecon board or display is bad which means replacing both in a sony if they are bad i recomend buying a new tv because it is not cost effective to replace these.

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