ACER 5742ZG No picture

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  • lefos
    Badcaps Veteran
    • Nov 2013
    • 321
    • Greece

    #1

    ACER 5742ZG No picture

    Hello everybody,

    Wanted your help on this one.
    It powers on normally but doesn't have picture in the lcd or on external display.
    Checked already with other RAM memory no result.
    I have done a slight reflow on the vga (ati- 216-0774211) with no result also.
    I wanted to know if somebody here has changed this chipset.
    Motherboard number LA-5891P

    Thanks
  • cyberhack
    Badcaps Veteran
    • Feb 2013
    • 466
    • Uk

    #2
    Re: ACER 5742ZG No picture

    I know you say it boots ok but check bios+kbc if fitted in this model

    Comment

    • lefos
      Badcaps Veteran
      • Nov 2013
      • 321
      • Greece

      #3
      Re: ACER 5742ZG No picture

      Hello there,

      Thanks for your reply. It doesn't boot it just powers on.
      I will try reprogramming the bios chip first.

      Comment

      • fddizon
        Badcaps Veteran
        • Sep 2011
        • 555
        • Philippines

        #4
        Re: ACER 5742ZG No picture

        check bottom side of mobo beneath the processor if there is NEC TOKIN chip.
        replace it with 4 pcs 330uf 2.5v tantalum caps

        Comment

        • dj_ricoh
          Badcaps Legend
          • Jan 2013
          • 2073
          • uk

          #5
          Re: ACER 5742ZG No picture

          if you don`t do a proper reflow you don`t have a chance.
          do it right or just stick it the oven .
          you`ll have a better chance with that
          Just cook it! It's already broken.

          Comment

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