lenovo ideapad 310 no power

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  • menshawy
    Badcaps Veteran
    • Aug 2013
    • 400
    • egypt
    #1

    lenovo ideapad 310 no power

    hi all friends
    lenovo ideapad 310 no power on
    but after about 10 sec of pressing power button led 2 lighting orange for 1 sec then off
    mb nm-a752
    pl401 3.3v ok
    pl402 5v ok
    ue1 (ite8586e)
    pin 93 rsmrst 3.3
    pin 108 ACIN# 3.3
    pin 109 LID_SW# 3.3
    after pressing power button
    pin 18 PM_SLP_S3# 0v
    pin 21 PM_SLP_S4# ov
    i reflashed main bios and ec (ite8586)
    what can i measure after that
    thanks
    Last edited by menshawy; 11-30-2019, 02:09 PM.
    Tags: None
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Re: lenovo ideapad 310 no power

      Check AD_ID

        Comment

        • menshawy
          Badcaps Veteran
          • Aug 2013
          • 400
          • egypt
          #3
          Re: lenovo ideapad 310 no power

          Originally posted by mcplslg123
          Check AD_ID
          thanks friend

            Comment

            • menshawy
              Badcaps Veteran
              • Aug 2013
              • 400
              • egypt
              #4
              Re: lenovo ideapad 310 no power

              problem solved
              when i measuring MB again found pl500 +1.0VALW is not present
              +1.0VALW generating by pu500 LV5075AGQV
              pu500 pin 11 +1.0VALW_EN is 3.3v ok

              replaced pu500
              pl500 +1.0VALW 1v ok

              MB power on normally and display ok
              thanks for all
              Attached Files
              Last edited by menshawy; 12-01-2019, 10:28 AM.

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