Question about Toshiba 40RF350U 40 in. LCD TV

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My toshiba 40rf350u is showing colored vertical lines on the left side of the screen 2 inches off the edge and 13 inches wide they seem to appear in morning and go away after 5-10 minutes. please help

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I have fixed the issue on my Toshiba 40" Flat panel. There are several ribbon cables that run across the top of the FPD module. It took a short while to disassemble the entire assembly. The fix I employed was to secure the ribbon cable using black electrical tape. Unfortunately the reassemble revealed an isse where the frame for the FPD module reintroduced the issue. I merely wedged the frame and the assembly and that resolved the issue entirely. I neglected to totally resolder the connections so not to damage any of the other ribbon cables for the display. Note these ribbon cables get very hot to the touch.

I have video's and pictures on request.
rhluttrell@rocketmail.com

Posted on Dec 24, 2012

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Posted on Jan 02, 2017

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herman2008
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SOURCE: Vertical lines on my 40 inch lcd mitsubishi hdtv 1080.

I assume your Misubishi is not close to anything electrical. However, it sounds like you have had an interference for some time. This will ineviteably cause the HDTV LCD to collapse. LCD's don't respond well close to heat. Is there a vent close? LCD's do well in a properly vented area but with all this said.......they will pick up interference from anything electrical. A few questions to ask ones self........are there any wireless devices or chargers close to the LCD? Might there be an oven, a/c unit or other wiring with 220 volts anywhere close to the LCD such as in the wall?
The Mitsubishi LT is a very reliable, multi component ready set that allows great viewing with surround sound. However, stop and think about this interference. It is not something in the unit. It is an interference. Look hard and when you've discovered it.....you won't believe how crystal clear this set will be.
Let me know what you find...Thanks for using Fixya and add any comments that may help us help you.

Posted on Jan 16, 2009

  • 2 Answers

SOURCE: philips plasma tv vertical black stripe

Hi
If there is no picture behind the stripe and the edges are well-defined, then one of the display driver ICs has failed. Philips displays can be made by several manufacturers - usually Samsung. The ICs are bonded to the flexible ribbon in most cases, and replacement is an expensive specialist job - and in many cases is simply not possible.
A shadow on the picture is much better - usually due to interference.
Glyn

Posted on Jul 22, 2008

  • 53 Answers

SOURCE: vertical lines on my 40 inch lcd mitsubishi hdtv 1080

Bad/Going Bad/Will go horribly bad TCON board (small circuit board sitting at the top of the panel in the back).

Most likely, the whole panel will need to be replaced in order to rectify the issue.

Posted on Aug 01, 2009

  • 1 Answer

SOURCE: Permanent Vertical Line on my Sony Bravia 46 inch LCD TV

I had one vertical line it cam and went for awhile then stayed permanently and I took it in for repair only to be told they couldn't fix it now they are trying to give me a used tv (warranty don't want to pay) but I refuse I purchased it new and I told them I want a new one. I had that tv less than 2 years. So if you have a warranty and lines get it in fast.

Posted on Mar 26, 2010

  • 29 Answers

SOURCE: Toshiba XF355 has a column of coloured vertical l...

A very common problem with toshy lcds is the tcon connectors need cleaning. Failing this a replacement tcon board will put matters right.

Posted on May 23, 2010

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I have a series of colored lines on the right 3 inches of the picture. Lines are vertical(top to bottom).The rest of the picture is fine.There is no picture only lines on the right 3 inches of screen.


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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Hi.

This website has the service manual ($7.79) with instructions to diagnose the boards. Unfortunately I am afraid that the problem is not a board but the panel itself.

Thin vertical lines in the middle of the picture mean that the panel is gone. Here an example of lines from bad panel in Toshiba LCD:Line Picture. (discussion: Avsforum). Sometimes the lines can be dark or in bright color.

The panel costs $339 (LCD PANEL ASSY).

Because of the price of the panel, the TV is not worth repairing unless under warranty.

Even if the TV is out of warranty call Toshiba and report the problem. As you can see in AVSforum page above the problem is affecting many users.

If Toshiba doesn't offer special conditions on repair (or discount on new), the TV is not worth repairing. Replacement of the digital board will hardly be a solution.

Only if you have wide bands, scrambled or flickering, then the problem is digital board (main board) or panel.If you have the thin pixel lines, then the panel is gone.

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1 Answer

The screen has colored vertical lines and becomes to a dark black band about 6 inches of width.The tv is exactly two years old by today.


My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display problem (purchased Aug. 2008, manufactured July 2008). Vertical multicolored lines appeared on the screen just left of center. The band of thin vertical bars is 5.5 inches wide. The lines are about 1/16-inch wide. They are stationary, always exactly in same place. They over-ride any other picture on the screen (no transparency). They are there all time even with no video inputs to the TV after the unit is turned on. See picture #1. The TV works well in every other respect, but, obviously, it is annoying to watch the picture with the color band blocking about 1/6 of the picture.

Further info, pics, comments, and updates on my Facebook page at

http://on.fb.me/mVwhVN

I already swapped out the TCON board with no improvement and replugged the TCON board cables with no improvement.

Most likely it is the flat panel tab bond failure (panel made by Samsung). Further solution updates will be on my Facebook page.

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Vertical lines on an LCD screen are not a good sign. This usually means that your screen is going bad.

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any vertical or horizontal line (any color any size) showing stable on the screen that is the hardware damage at the LCD panel back board ( call panel driver board) . it repair complicate but easy to do change LCD panel (common parts). you need find a PC service dealer to do so.

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