Compaq C700 No Display

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  • raajkumar
    Badcaps Veteran
    • Mar 2015
    • 354
    • Srilanka

    #1

    Compaq C700 No Display

    I got a Compaq C700 ( JBL81, LA-4031P ) laptop without power. Now i fixed the power problem. but no display. I checked all coils having power. But at LCD connector there was no +LCDVDD. Does anyone has solved this kind of problem in your experience ? please give any idea.
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  • meritosari
    Senior Member
    • Oct 2010
    • 774
    • Indonesia

    #2
    Re: Compaq C700 No Display

    Make sure signal ENAVDD already present, Probably Q7 was faulty.

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    • raajkumar
      Badcaps Veteran
      • Mar 2015
      • 354
      • Srilanka

      #3
      Re: Compaq C700 No Display

      Originally posted by meritosari
      Make sure signal ENAVDD already present, Probably Q7 was faulty.
      ENAVDD Not present. I checked q7 and it is working. i inject 3v to ENAVDD line, +LCDVDD also found. But i stopped injection the +LCDVDD not found.

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