toshiba c850 back light problem

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  • akande
    Badcaps Veteran
    • Dec 2017
    • 278
    • Nigeria

    #1

    toshiba c850 back light problem

    pls i need guide to fix this toshiba c850 with no back light plz assist
  • mcplslg123
    Badcaps Legend
    • Jun 2015
    • 7262
    • india

    #2
    Re: toshiba c850 back light problem

    Is schematic available?? M/B code?? If avlbl, then post the schematic here and do the basic homework like measuring voltage on lvds pins and report here.

    Comment

    • akande
      Badcaps Veteran
      • Dec 2017
      • 278
      • Nigeria

      #3
      Re: toshiba c850 back light problem

      Originally posted by mcplslg123
      is schematic available?? M/b code?? If avlbl, then post the schematic here and do the basic homework like measuring voltage on lvds pins and report here.
      this is the schmatics mate
      Attached Files

      Comment

      • mcplslg123
        Badcaps Legend
        • Jun 2015
        • 7262
        • india

        #4
        Re: toshiba c850 back light problem

        But you didnt reported any measurement??

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india

          #5
          Re: toshiba c850 back light problem

          Refer to page 34 of schematic and check voltage on pin 21/22/23/24/25 & Pin 1/2/3/4/5 and post here if you are not willing to measure all pins.

          Comment

          • akande
            Badcaps Veteran
            • Dec 2017
            • 278
            • Nigeria

            #6
            Re: toshiba c850 back light problem

            Originally posted by mcplslg123
            Refer to page 34 of schematic and check voltage on pin 21/22/23/24/25 & Pin 1/2/3/4/5 and post here if you are not willing to measure all pins.
            only 2&4 pin as 19.6 others 0v

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india

              #7
              Re: toshiba c850 back light problem

              I doubt your measurements. Pin 1 &2 are connected together and can be 19V but pin4 cant be 19v. Are you aware how the pins are numbered on lvds connector-Its not serialwise. Pin1 on this side and pin2 on the opposite other side. Re check once again.

              Comment

              • mielta
                Badcaps Veteran
                • Apr 2015
                • 368
                • Germany

                #8
                Re: toshiba c850 back light problem

                pin 1+2 cant be 19v max.3,3v
                the 19v line is pin 23+24

                Comment

                • akande
                  Badcaps Veteran
                  • Dec 2017
                  • 278
                  • Nigeria

                  #9
                  Re: toshiba c850 back light problem

                  Originally posted by mielta
                  pin 1+2 cant be 19v max.3,3v
                  the 19v line is pin 23+24
                  I'll check all over and feed u back thanks

                  Comment

                  • mcplslg123
                    Badcaps Legend
                    • Jun 2015
                    • 7262
                    • india

                    #10
                    Re: toshiba c850 back light problem

                    Originally posted by mielta
                    pin 1+2 cant be 19v max.3,3v
                    the 19v line is pin 23+24
                    Oops, that correct.Typed wrong pins. Very sorry for mis-guidance.

                    Comment

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