toshiba 50l1350u wont turn on

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  • KenToshiba-owner
    New Member
    • Jun 2016
    • 2
    • usa

    #1

    toshiba 50l1350u wont turn on

    i have a toshiba 50l1350u that wouldnt power on regularly without unplugging it and repetitively trying over and over.. when it powers on its good till it shuts off. i updated the firmware and didnt have a problem with it for a few months.. then it started happening more and more.. i bought the PK101W0100I Power Supply Board Unit to fix this and it is doing the same thing.. all that ive read is the power regulator is shot or one of the fuses is shot but the power board was supposed to replace all that.. unless i bought a bad board im at a loss.. is there anything on the main board that can be doing this? im not a EE and cant replace anything with unsoldering it.. need any advise..
  • Andrew F. Ali
    Badcaps Legend
    • Jan 2014
    • 2450
    • Trinidad & Tobago

    #2
    Re: toshiba 50l1350u wont turn on

    Replace the main board

    Comment

    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6643
      • Wales

      #3
      Re: toshiba 50l1350u wont turn on

      Try reinstalling the firmware. Maybe you have an EEPROM which is losing data over time.
      Willing to help but I'm no expert.

      Comment

      • ReeceyBurger123
        Never Give Up !
        • May 2014
        • 7325
        • Britain

        #4
        Re: toshiba 50l1350u wont turn on

        Originally posted by Andrew F. Ali
        Replace the main board
        +1 likely failed flash firmware on the SPI chip. Overtime with power cycles the firmware corrupts. Easier to replace the board than messing.
        Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

        https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • paulstef
          Badcaps Veteran
          • Dec 2013
          • 724
          • Canada

          #5
          Re: toshiba 50l1350u wont turn on

          Anyone has a cheaper source than this mega-expensive ebay seller?
          https://www.ebay.ca/itm/EEPROM-1pc-T...EAAOxyDEVSdqgb

          Chip costs probably less than a buck...

          Comment

          • nomoresonys
            Badcaps Legend
            • Jan 2013
            • 12206
            • U.S.

            #6
            Re: toshiba 50l1350u wont turn on

            https://www.ebay.com/itm/PRE-PROGRAM...1/282414599471
            one there for 10 bucks free shipping, just took a quick look, make sure it's the right one if you get it.

            Comment

            • paulstef
              Badcaps Veteran
              • Dec 2013
              • 724
              • Canada

              #7
              Re: toshiba 50l1350u wont turn on

              Yep I saw this ad, unfortunately he doesn't ship to Canada . seems there is no other option for us...
              Thanks

              Comment

              • nomoresonys
                Badcaps Legend
                • Jan 2013
                • 12206
                • U.S.

                #8
                Re: toshiba 50l1350u wont turn on

                https://www.banggood.com/buy/eeprom.html
                some stuff here, looks to be eeprom programmers n such, probably not what you need but some interesting stuff.
                Last edited by nomoresonys; 03-15-2018, 07:19 AM.

                Comment

                • diif
                  Badcaps Legend
                  • Feb 2014
                  • 6978
                  • England

                  #9
                  Re: toshiba 50l1350u wont turn on

                  Originally posted by paulstef
                  Yep I saw this ad, unfortunately he doesn't ship to Canada . seems there is no other option for us...
                  Thanks
                  You don't mention the markings on the EPROM but the cheap CH341A programmer has read all for me so far.
                  Blank EEPROMs are available on ebay or Ali, perhaps the seller will sell you just the dump via email that you could program yourself if you can't find a dump.
                  You could try using freeze spray to aid in reading the one you have already, there are instances this will work, but no guarantee.

                  Comment

                  • nomoresonys
                    Badcaps Legend
                    • Jan 2013
                    • 12206
                    • U.S.

                    #10
                    Re: toshiba 50l1350u wont turn on

                    https://www.youtube.com/watch?v=74E4gXlGyf8
                    Toshiba system reset, might help.

                    Comment

                    • paulstef
                      Badcaps Veteran
                      • Dec 2013
                      • 724
                      • Canada

                      #11
                      Re: toshiba 50l1350u wont turn on

                      Originally posted by diif
                      You don't mention the markings on the EPROM but the cheap CH341A programmer has read all for me so far.
                      Blank EEPROMs are available on ebay or Ali, perhaps the seller will sell you just the dump via email that you could program yourself if you can't find a dump.
                      You could try using freeze spray to aid in reading the one you have already, there are instances this will work, but no guarantee.
                      $3 for a programmer!! I'll try that out, thanks.

                      Comment

                      • nomoresonys
                        Badcaps Legend
                        • Jan 2013
                        • 12206
                        • U.S.

                        #12
                        Re: toshiba 50l1350u wont turn on

                        https://support.toshiba.com/support/...eeText=3567373

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12206
                          • U.S.

                          #13
                          Re: toshiba 50l1350u wont turn on

                          Finding the eeprom dump might be a major task. maybe 14 bucks isn't so bad.
                          Last edited by nomoresonys; 03-16-2018, 11:40 AM.

                          Comment

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