Acer V3-372 Wistron Mihawk 15208-3

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  • Claudiomfa
    Badcaps Veteran
    • Nov 2015
    • 455
    • Portugal

    #1

    Acer V3-372 Wistron Mihawk 15208-3

    Hi guys,

    I have a laptop acer v3-372 that not power on. The ac adapter are desarmed when I plug on the laptop. If I remove PU4302 or PU4401 the short desapear. That are a p-channel mosfet. Outside the motherboard seems to be ok, but when in the motherboard the asymmetric source with 3v have 0.51A consum and the two mosfets are very hot.

    Can anyone help me to find the short circuit in this motherboard?
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  • mcplslg123
    Badcaps Legend
    • Jun 2015
    • 7262
    • india

    #2
    Re: Acer V3-372 Wistron Mihawk 15208-3

    It seems your +19V rail is shorted. Remove PU4401 and check resistance on pin1/4/8.

    Comment

    • Claudiomfa
      Badcaps Veteran
      • Nov 2015
      • 455
      • Portugal

      #3
      Re: Acer V3-372 Wistron Mihawk 15208-3

      Originally posted by mcplslg123
      It seems your +19V rail is shorted. Remove PU4401 and check resistance on pin1/4/8.
      Pin 1 is shorted with ground

      pin1 1.0ohm
      pin4 no value
      pin 8 no value

      Comment

      • Claudiomfa
        Badcaps Veteran
        • Nov 2015
        • 455
        • Portugal

        #4
        Re: Acer V3-372 Wistron Mihawk 15208-3

        Thanks @mcplslg123

        I solve problem. PC4803 is shorted

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india

          #5
          Re: Acer V3-372 Wistron Mihawk 15208-3

          Originally posted by Claudiomfa
          Thanks @mcplslg123

          I solve problem. PC4803 is shorted

          Comment

          • Duranitron
            Badcaps Veteran
            • Jul 2014
            • 544
            • Philippines

            #6
            Re: Acer V3-372 Wistron Mihawk 15208-3

            Originally posted by mcplslg123
            GOOD JOB!!! MCPLSLG123 !!!!
            Never stop LEARNING because life never stops TEACHING!

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