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Repair guides and support for your Toshiba TV.

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Vertical white stripe on tv screen


I am trying to discover if there's a way to fix this white vertical line on my tv panel. Belongs to a Toshiba TV (40TL838) wich has a Samsung panel ref. LTA400HV01.

There are also some horizontal lines on top wich I wanted to solve too but the main pourpose for this is the large white line.

Thank you very much for your attention!

Kind Regards,


Atualizar (24-04-2019)

There's the problem:

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TV has vertical colored lines on the screen. This is a common issue with many TVs. Vertical colored lines usually show on a TV screen when the T-Con board is not working properly. Many times this can simply be caused from wiring that is not securely fastened. Other times the T-Con Board itself may be faulty and need to be replaced.


If you experience a TV showing colored vertical lines, try gently tapping in different areas on the back of the TV, you may see the vertical colored lines go away completely or they might decrease in intensity. If so, you may simply have a loose wiring cable. This is not a permanent solution, but may prevent the vertical colored lines from showing temporarily. To fix this permanently, you need to troubleshoot the issue and find out which wiring harness may be loose, faulty or damaged.

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Thank you for the fast response.

I changed the t-con already and unplugged all the wires, until now nothing..

Also tapped the back of tv with no sucess..

I will keep trying to discover the solution, meanwhile every tip will be usefull!

Thank you very much once again!

Best regards,


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