Fault with Toshiba 40L6353D LED TV

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  • Mikeyboy2007
    Badcaps Veteran
    • Mar 2013
    • 745
    • Scotland
    #1

    Fault with Toshiba 40L6353D LED TV

    Hi guys, i have a fault with the above listed model number where the tv when plugged in goes a solid green for 4-5 seconds then a solid red.. pressing power button doesnt do anything. tested PSU seems fine. anyone have similar issue and can help resolve ?

    i have also added a video link, the green light on AV board gives a flash of 3 green lights then a pause before repeating. possible for this to mean anything ?

    any help is greatly appreciated.

    TV model number : 40L6353D
    Panel Type : LSC400HMO6-T01
    Main AV Board no : 32L4300 Rev 1.02
    PSU Board No. : B191-201 D09 Rev.D

    Video Link : https://www.youtube.com/watch?v=NRDTp5ke8MQ
    Last edited by Mikeyboy2007; 04-20-2020, 03:53 PM. Reason: video link
    Tags: None
    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12129
      • U.S.
      #2
      Re: Fault with Toshiba 40L6353D LED TV

      Test to try, with power cord unplugged, UNHOOK cable from powerboard to mainboard, jumper about a 1k resistor from pin 13 POWER_TV to pin 10 5v1 and another resistor from pin 14 BL ON to pin 10 5v1, plug the power cord into powerboard, see if the backlights come on and stay on.

        Comment

        • Mikeyboy2007
          Badcaps Veteran
          • Mar 2013
          • 745
          • Scotland
          #3
          Re: Fault with Toshiba 40L6353D LED TV

          do they need to be a certain wattage or will any do ?

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12129
              • U.S.
              #4
              Re: Fault with Toshiba 40L6353D LED TV

              I guess about 1/4 to 1k or there about, can be done with just jumper wires but best policy is a resistor so there's no accidental contact with the wrong pins and such, which might damage something.
              Last edited by nomoresonys; 04-20-2020, 07:04 PM.

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: Fault with Toshiba 40L6353D LED TV

                  Originally posted by Mikeyboy2007
                  Hi guys, i have a fault with the above listed model number where the tv when plugged in goes a solid green for 4-5 seconds then a solid red.. pressing power button doesnt do anything. tested PSU seems fine. anyone have similar issue and can help resolve ?

                  i have also added a video link, the green light on AV board gives a flash of 3 green lights then a pause before repeating. possible for this to mean anything ?

                  any help is greatly appreciated.

                  TV model number : 40L6353D
                  Panel Type : LSC400HMO6-T01
                  Main AV Board no : 32L4300 Rev 1.02
                  PSU Board No. : B191-201 D09 Rev.D

                  Video Link : https://www.youtube.com/watch?v=NRDTp5ke8MQ
                  So are you saying that the power supply is getting all the correct control signals from the main board?
                  Never stop learning
                  Basic LCD TV and Monitor troubleshooting guides.
                  http://www.badcaps.net/forum/showthr...956#post305956

                  Voltage Regulator (LDO) testing:
                  http://www.badcaps.net/forum/showthr...999#post300999

                  Inverter testing using old CFL:
                  http://www.badcaps.net/forum/showthr...er+testing+cfl

                  Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                  http://s807.photobucket.com/user/budm/library/

                  TV Factory reset codes listing:
                  http://www.badcaps.net/forum/showthread.php?t=24809

                    Comment

                    • Mikeyboy2007
                      Badcaps Veteran
                      • Mar 2013
                      • 745
                      • Scotland
                      #6
                      Re: Fault with Toshiba 40L6353D LED TV

                      Originally posted by budm
                      So are you saying that the power supply is getting all the correct control signals from the main board?
                      I will check again. So i am testing the voltages coming from the mainboard to PSU ?

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12129
                          • U.S.
                          #7
                          Re: Fault with Toshiba 40L6353D LED TV

                          Try test number 3 below, show your results for each pin as described, #2 is a simple video if needed.
                          Last edited by nomoresonys; 04-21-2020, 06:11 AM.

                            Comment

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