Sony Vaio SVF15A1C5E display no backlight

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  • ciki
    Senior Member
    • Aug 2014
    • 132
    • Ireland

    #1

    Sony Vaio SVF15A1C5E display no backlight

    hi laptop missing screen backlight everything else works ok ,fuse f1 have power 3.3v but still no backlight i attach schematic if somebody knows help
    Attached Files
  • JaroTech
    Badcaps Veteran
    • Mar 2015
    • 351
    • Canada

    #2
    Re: Sony Vaio SVF15A1C5E display no backlight

    Hi, from your schematics, the backlight is powered by the pins 37,38,39,40, verify if you have the VIN at the capacitor C353. If you have zero voltage, then the fuse F4 has blown.

    Comment

    • ciki
      Senior Member
      • Aug 2014
      • 132
      • Ireland

      #3
      Re: Sony Vaio SVF15A1C5E display no backlight

      Hi I have 3.3v on c353 but strange no ground and no fuse f4 only empty place where should be ,looks like never was there

      Comment

      • JaroTech
        Badcaps Veteran
        • Mar 2015
        • 351
        • Canada

        #4
        Re: Sony Vaio SVF15A1C5E display no backlight

        Maybe you have the wrong schematics, I'm answering with what you give me.

        Comment

        • ciki
          Senior Member
          • Aug 2014
          • 132
          • Ireland

          #5
          Re: Sony Vaio SVF15A1C5E display no backlight

          Its right one i will upload the image of the place F4 and if i have 3.3 v on C353 is thats mean that backlight power ok

          Comment

          • ciki
            Senior Member
            • Aug 2014
            • 132
            • Ireland

            #6
            Re: Sony Vaio SVF15A1C5E display no backlight

            Jaro you are right I put the fuse f4 on the place and Voila thx

            Comment

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