sony vaio pcg-51211l

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  • String2016
    Badcaps Legend
    • Nov 2015
    • 2230
    • philippines

    #1

    sony vaio pcg-51211l

    Hi friends, i need help on this sony vaio laptop there is a display on external but on the internal there is no backlight, when i checked on lvds connector someone remove a fuse i dont know what fuse it is, I have attached the image and here is the measurements of the lvds and i dont have schematic
    pin1=3.3v
    pin2=3.3v
    pin12=3.3
    pin13=3.3
    pin16=1.2
    pin27=1.7
    pin29=1.7
    pin35=1.7
    pin40=3.3

    the rest pins have 0v

    anyone can help me on this please
    Attached Files
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 20731
    • UK

    #2
    Re: sony vaio pcg-51211l

    Schematic https://www.badcaps.net/forum/showthread.php?t=46618
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • String2016
      Badcaps Legend
      • Nov 2015
      • 2230
      • philippines

      #3
      Re: sony vaio pcg-51211l

      Thanks for the response sorry my mistakes above here is the correct measurements
      pin1=3.3v
      pin2=3.3v
      pin12=3.3
      pin13=3.3
      pin16=1.2
      pin27=1.7
      pin29=3.3
      pin30=3.3

      is there a way to bypass F17 FUSE because other side have 19v and on LCDVCC on pin 29 and pin 30 it has only 3.3v and pin 30 connected to C296 caps no 19v also please help

      Comment

      • String2016
        Badcaps Legend
        • Nov 2015
        • 2230
        • philippines

        #4
        Re: sony vaio pcg-51211l

        need help on this please

        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 20731
          • UK

          #5
          Re: sony vaio pcg-51211l

          The fuse part number is 0466003.NRHF ,its in the schematic, its a 3A very fast blow. Do you have any donor motherboards
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment

          • SMDFlea
            Super Moderator
            • Jan 2018
            • 20731
            • UK

            #6
            Re: sony vaio pcg-51211l

            Check R252 and C298 , on pin 11 DISPON
            Last edited by SMDFlea; 05-30-2018, 10:26 AM. Reason: added cap
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment

            • String2016
              Badcaps Legend
              • Nov 2015
              • 2230
              • philippines

              #7
              Re: sony vaio pcg-51211l

              i have scrapboards but i cannot find the same fuse and i checked R252 has 5.5kohms and c298 0v and pin 11 0v

              Comment

              • mcplslg123
                Badcaps Legend
                • Jun 2015
                • 7262
                • india

                #8
                Re: sony vaio pcg-51211l

                Originally posted by String2016
                Thanks for the response sorry my mistakes above here is the correct measurements
                pin1=3.3v
                pin2=3.3v
                pin12=3.3
                pin13=3.3
                pin16=1.2
                pin27=1.7
                pin29=3.3
                pin30=3.3

                is there a way to bypass F17 FUSE because other side have 19v and on LCDVCC on pin 29 and pin 30 it has only 3.3v and pin 30 connected to C296 caps no 19v also please help
                When the fuse is blown. how can there be 19v on lvds connector??
                19v will go thruogh the fuse only. Check resistance on both pins of fuse, if not shorted , you can put a jumper between both pins of fuse. This is for test purpose only. It is safer to put a fuse but atleast you can check by putting jumper.

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 20731
                  • UK

                  #9
                  Re: sony vaio pcg-51211l

                  As mcplslg123 said, you can use a jumper, or even use a higher rated fuse temporarily. If you still get nothing on the display check U11 .
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                  Comment

                  • String2016
                    Badcaps Legend
                    • Nov 2015
                    • 2230
                    • philippines

                    #10
                    Re: sony vaio pcg-51211l

                    there is no 19v on lvds connector. i checked resistance to the ground on one side 0L and on the other side 0.552v.I already tried putting wire on both sides of the fuse to test but still the same issue

                    Comment

                    • SMDFlea
                      Super Moderator
                      • Jan 2018
                      • 20731
                      • UK

                      #11
                      Re: sony vaio pcg-51211l

                      Originally posted by String2016
                      Thanks for the response sorry my mistakes above here is the correct measurements
                      pin1=3.3v
                      pin2=3.3v
                      pin12=3.3
                      pin13=3.3
                      pin16=1.2
                      pin27=1.7
                      pin29=3.3
                      pin30=3.3

                      is there a way to bypass F17 FUSE because other side have 19v and on LCDVCC on pin 29 and pin 30 it has only 3.3v and pin 30 connected to C296 caps no 19v also please help
                      pin 29 and 30 are ok. You should only put the jumper between pin 1 and 2 of f17 (VIN) . The lvds needs 19v on pins 8,9,10 only.
                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                      Comment

                      • String2016
                        Badcaps Legend
                        • Nov 2015
                        • 2230
                        • philippines

                        #12
                        Re: sony vaio pcg-51211l

                        i already done that i put jumper from the fuse pin 1 and 2 but still the same issue and no 19v on lvds connector pin 8910

                        Comment

                        • SMDFlea
                          Super Moderator
                          • Jan 2018
                          • 20731
                          • UK

                          #13
                          Re: sony vaio pcg-51211l

                          Originally posted by String2016
                          Thanks for the response sorry my mistakes above here is the correct measurements
                          pin1=3.3v
                          pin2=3.3v
                          pin12=3.3
                          pin13=3.3
                          pin16=1.2
                          pin27=1.7
                          pin29=3.3
                          pin30=3.3

                          is there a way to bypass F17 FUSE because other side have 19v and on LCDVCC on pin 29 and pin 30 it has only 3.3v and pin 30 connected to C296 caps no 19v also please help
                          "because other side have 19v" .The other side of what have 19V , i assume you meant 19V on pin 2 of F17 before you put the jumper on ?
                          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                          Comment

                          • String2016
                            Badcaps Legend
                            • Nov 2015
                            • 2230
                            • philippines

                            #14
                            Re: sony vaio pcg-51211l

                            yes pin2 of F17 have 19v i put jumper on both sides of F17

                            Comment

                            • SMDFlea
                              Super Moderator
                              • Jan 2018
                              • 20731
                              • UK

                              #15
                              Re: sony vaio pcg-51211l

                              Ok ,so you have 19V on pin 2 before you put the jumper ACROSS from pin 2 to pin 1 of F17 pads. If you have 0V with the jumper then pins 8,9,10 or C292 is shorted
                              All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                              Comment

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