Pegatron B14Y backlight problem

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  • asliyucegsm
    Badcaps Veteran
    • Jun 2011
    • 340
    • Turkiye

    #1

    Pegatron B14Y backlight problem

    my friend
    DNS B14Y
    Pegatron B14Y rev: 2.0
    NPCE795LA0DX
    Sr0N9
    SLJ8C
    schema
    there is an image on the external display
    +18volt ok
    +3.3 volt ok
    What signals should I check from Npce
    No data signal in lvds connector
    thanks
  • peste
    Super Moderator
    • Dec 2016
    • 12226
    • ROMANIA

    #2
    Re: Pegatron B14Y backlight problem

    check the video chip..heat the video chip carefully, use the flux paste, this operation is trial ... if everything is ok you will have to do reballing ..
    Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

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    Comment

    • Duranitron
      Badcaps Veteran
      • Jul 2014
      • 543
      • Philippines

      #3
      Re: Pegatron B14Y backlight problem

      Originally posted by asliyucegsm
      my friend
      DNS B14Y
      Pegatron B14Y rev: 2.0
      NPCE795LA0DX
      Sr0N9
      SLJ8C
      schema
      there is an image on the external display
      +18volt ok
      +3.3 volt ok
      What signals should I check from Npce
      No data signal in lvds connector
      thanks
      before you do the suggestion of peste.. try this if the system boots and have a display in the external monitor press F8 to switch to onboard lcd panel..if it displays.. try to reflash your bios with latest bios dump.. if no display using the external monitor try to go to device manager and click the display adapter look for exclamation point. if you see it.. video chip is toasted. if not.. if you can substitute a known compatible working lcd panel try that.. if not.. try the suggestion of peste..
      Never stop LEARNING because life never stops TEACHING!

      Comment

      • asliyucegsm
        Badcaps Veteran
        • Jun 2011
        • 340
        • Turkiye

        #4
        Re: Pegatron B14Y backlight problem

        lcd panel.ok
        bios.ok
        integrated graphics and processor
        I heated it up a little bit but it may have deteriorated from the same overheating
        thanks friend

        Comment

        • Duranitron
          Badcaps Veteran
          • Jul 2014
          • 543
          • Philippines

          #5
          Re: Pegatron B14Y backlight problem

          using external monitor go to device manage have you seen dual gpu? maybe one of it fails..no exclamation?
          Never stop LEARNING because life never stops TEACHING!

          Comment

          • Duranitron
            Badcaps Veteran
            • Jul 2014
            • 543
            • Philippines

            #6
            Re: Pegatron B14Y backlight problem

            or try to uninstall the video driver use only the basic driver and restart..
            Never stop LEARNING because life never stops TEACHING!

            Comment

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