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Toshiba 32AV500U: TCON failure?

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    Toshiba 32AV500U: TCON failure?

    So I go to use my main computer this morning and my primary monitor (Toshiba 32AV500U) decides to not display a picture. There's a backlight, didn't know about sound (sound is not routed to this monitor), but no picture. No menus of any kind. It is 100% responsive to remote commands. A quick Google search points fingers at the TCON. How do I test the TCON to prove that it's bad?
    Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

    My computer doubles as a space heater.

    Permanently Retired Systems:
    RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
    Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


    Kooky and Kool Systems
    - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
    - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
    - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
    - Main Workstation - Fully operational!

    sigpic

    #2
    Re: Toshiba 32AV500U: TCON failure?

    i would check t con fuse and check it has correct voltages to make it work .

    Comment


      #3
      Re: Toshiba 32AV500U: TCON failure?

      Looks like the t-con should be supplied 12 volts, there is a fuse marked F1 (24V/1.6A) next to the lvds cable.

      Comment


        #4
        Re: Toshiba 32AV500U: TCON failure?

        Yeppers, TCON fuse is blown. So I guess that signifies a bad TCON?
        Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

        My computer doubles as a space heater.

        Permanently Retired Systems:
        RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
        Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


        Kooky and Kool Systems
        - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
        - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
        - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
        - Main Workstation - Fully operational!

        sigpic

        Comment


          #5
          Re: Toshiba 32AV500U: TCON failure?

          looking that way yes .

          Comment


            #6
            Re: Toshiba 32AV500U: TCON failure?

            UPDATE 11/12/2018 20:11 CST
            TCON board ordered. Will update Saturday when it's installed.
            Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

            My computer doubles as a space heater.

            Permanently Retired Systems:
            RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
            Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


            Kooky and Kool Systems
            - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
            - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
            - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
            - Main Workstation - Fully operational!

            sigpic

            Comment


              #7
              Re: Toshiba 32AV500U: TCON failure?

              Check the resistance on the t-con side and see if there is a short, if there is none, try replacing the fuse, you can just wire in a 1.5 amp fuse and see if it works, Sometimes the fuse just gives out without the t-con being bad
              If the fuse blows, disconnect the ribbons between the t-con and panel and try again to be sure the panel is'nt the problem.
              Last edited by R_J; 11-12-2018, 08:18 PM.

              Comment


                #8
                Re: Toshiba 32AV500U: TCON failure?

                UPDATE 11/15/2018 17:45 CST
                Replacement TCON board installed and working.
                Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

                My computer doubles as a space heater.

                Permanently Retired Systems:
                RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
                Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


                Kooky and Kool Systems
                - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
                - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
                - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
                - Main Workstation - Fully operational!

                sigpic

                Comment


                  #9
                  Re: Toshiba 32AV500U: TCON failure?

                  I have a sony 50" that had a blown t-con fuse, all I did was replace the fuse and it's still working fine, so the t-con may still be good, maybe keep it for a spare.

                  Comment


                    #10
                    Re: Toshiba 32AV500U: TCON failure?

                    I've had similar happen before. Had 3 fuses go in a stereo receiver for no apparent reason. I'm guessing old age.
                    Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

                    My computer doubles as a space heater.

                    Permanently Retired Systems:
                    RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
                    Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


                    Kooky and Kool Systems
                    - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
                    - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
                    - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
                    - Main Workstation - Fully operational!

                    sigpic

                    Comment

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