Sony, HP, Tosi screen problem

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  • Prosatanosz
    Senior Member
    • Nov 2015
    • 108
    • Hungary

    #1

    Sony, HP, Tosi screen problem

    Hi!

    What caused the pictured problem? Screen, cable, vga chip surely not. I have more laptops with this syndrome. One time i replaced the lcd cable socket on HP CQ56 motherboard. No luck. The colors varies per display, some display is only black with backlight.
    Attached Files
    Last edited by Prosatanosz; 02-06-2019, 07:56 AM.
  • mosfetratus
    Sure Not
    • Feb 2019
    • 174
    • Resistron

    #2
    Re: Sony, HP, Tosi screen problem

    What do you get on external monitor?

    could be bad TCON on the lcd itself.
    Last edited by mosfetratus; 02-06-2019, 08:11 AM.

    Comment

    • Prosatanosz
      Senior Member
      • Nov 2015
      • 108
      • Hungary

      #3
      Re: Sony, HP, Tosi screen problem

      Hi!

      Currently on Vaio RGB and hdmi ok. LCD and cable is ok for sure.

      Comment

      • mosfetratus
        Sure Not
        • Feb 2019
        • 174
        • Resistron

        #4
        Re: Sony, HP, Tosi screen problem

        Originally posted by Prosatanosz
        Hi!

        Currently on Vaio RGB and hdmi ok. LCD and cable is ok for sure.
        That means faulty laptop LCD, because it has light and shows color, it highly could be tcon, it could be swapped with new one.

        Comment

        • Prosatanosz
          Senior Member
          • Nov 2015
          • 108
          • Hungary

          #5
          Re: Sony, HP, Tosi screen problem

          Originally posted by mosfetratus
          That means faulty laptop LCD, because it has light and shows color, it highly could be tcon, it could be swapped with new one.
          LCD is ok, tested on other laptop, and other lcds show same problems in Vaio

          Comment

          • SMDFlea
            Super Moderator
            • Jan 2018
            • 20695
            • UK

            #6
            Re: Sony, HP, Tosi screen problem

            Some of the older vaios have a small 4 way dipswitch on the motherboard that needs changing switch positions if you install another compatible LCD screen. Check the schematic . Flashing the EDID eeprom can also help in a few cases.

            EDIT: picture is from an MBX-202 M790 schematic. The switch has 4 positions, 0-3 for each different lcd. The 1`s and 0`s are binary,reading from right to left .
            Attached Files
            Last edited by SMDFlea; 02-06-2019, 10:37 AM. Reason: added jpg
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment

            • ktmmotocross
              Boardkiller
              • Feb 2014
              • 3577
              • slovakia

              #7
              Re: Sony, HP, Tosi screen problem

              Originally posted by SMDFlea
              Some of the older vaios have a small 4 way dipswitch on the motherboard that needs changing switch positions if you install another compatible LCD screen. Check the schematic . Flashing the EDID eeprom can also help in a few cases.

              EDIT: picture is from an MBX-202 M790 schematic. The switch has 4 positions, 0-3 for each different lcd. The 1`s and 0`s are binary,reading from right to left .
              nice one man

              Comment

              • Prosatanosz
                Senior Member
                • Nov 2015
                • 108
                • Hungary

                #8
                Re: Sony, HP, Tosi screen problem

                Thx SMDFlea, but this is not the case.

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 20695
                  • UK

                  #9
                  Re: Sony, HP, Tosi screen problem

                  What model number is the vaio .
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                  Comment

                  • Prosatanosz
                    Senior Member
                    • Nov 2015
                    • 108
                    • Hungary

                    #10
                    Re: Sony, HP, Tosi screen problem

                    Pcg-71211m

                    Comment

                    • SMDFlea
                      Super Moderator
                      • Jan 2018
                      • 20695
                      • UK

                      #11
                      Re: Sony, HP, Tosi screen problem

                      Originally posted by Prosatanosz
                      Pcg-71211m
                      Is the motherboard an MBX-224 M960 .Here`s a schematic, if its the right one ,check page 35 for the panel ID switch .

                      https://cdn.badcaps-static.com/pdfs/...971f4350d3.pdf
                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                      Comment

                      • lefos
                        Badcaps Veteran
                        • Nov 2013
                        • 321
                        • Greece

                        #12
                        Re: Sony, HP, Tosi screen problem

                        Hello,

                        On the VAIO what is the code of the gpu chipset?
                        I had similar problem where internal picture had problem but external was OK and the problem was from the gpu chipset.
                        If I am correct this vaio series have an ati gpu - 2 types right?

                        Comment

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