Toshiba 26AV505D TV Blue Screen

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  • jonnybgood
    New Member
    • Jul 2014
    • 3
    • Malta
    #1

    Toshiba 26AV505D TV Blue Screen

    Hi,
    I am trying to fix this TV which wasn't turning on. I changed the mainboard, and checked the power supply voltage points and all seemed to be well.

    The problem is that when I switch it on, the screen would just light up in Blue and there is nothing else; no words no sound. (Backlight seems to work fine).

    What should be my next step? I have a scope which I can use to monitor any signals.

    thanks

    Brandon
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Toshiba 26AV505D TV Blue Screen

      I would try checking the LVDS in to the panel. I have encountered a bad LCD panel on this model before.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • jonnybgood
          New Member
          • Jul 2014
          • 3
          • Malta
          #3
          Re: Toshiba 26AV505D TV Blue Screen

          Thanks for your help, I checked the LVDS and all was OK, I then found out that one of the ribbons from the panel PCB to the actual TFT was faulty.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Toshiba 26AV505D TV Blue Screen

              Does not surprise me I came to the same conclusion. This TV is not made by Toshiba but instead by a Chinese ODM.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

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