Lenovo L430 won't turn on

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  • Smilo_
    Member
    • Sep 2014
    • 20
    • FRance
    #1

    Lenovo L430 won't turn on

    Hello

    I plugged a L430 which I didn't use for 4 months. And it doesn't want to power up.
    I tried another charger, replace RAM, clear cmos, whitout hard drive and nothing.
    When I plug it in the startup button comes green fix, battery led is orange fix without battery inside and mute sound button comes orange fix after the fan starts spinning 1 sec.
    When i tried without ram the fan spin but no beep song. I don't know if there are beep song on this laptop.
    Do you have an idea please?
    Tags: None
    • Techtiger
      Badcaps Legend
      • Oct 2014
      • 1601
      • france
      #2
      Re: Lenovo L430 won't turn on

      Dissemble the laptop come up with Voltage measurement for example PL4301 PL4302 big gray coils you have to measure all the coils
      Try with a external screen does your caps lock key key board working
      Attached Files

        Comment

        • Smilo_
          Member
          • Sep 2014
          • 20
          • FRance
          #3
          Re: Lenovo L430 won't turn on

          Hello,

          I measured Pl4301 et pl4302. I got 1.2V for 2seconds then 0V when I plugged the charger
          PL4101 3.36V
          PL4103 5.02V
          PL1 2.72V
          PL4601 I got 1.55V for 2seconds then 0V when I plugged the charger
          PL4401 0V
          PL4501 I got 1.04V for 2seconds then 0V when I plugged the charger

          No display with external screen, and caps lock key key not working.

            Comment

            • Techtiger
              Badcaps Legend
              • Oct 2014
              • 1601
              • france
              #4
              Re: Lenovo L430 won't turn on

              (Pl4301 et pl4302. I got 1.2V for 2seconds then 0V when I plugged the charger
              PL4601 I got 1.55V for 2seconds then 0V when I plugged the charger
              PL4401 0V
              PL4501 I got 1.04V for 2seconds then 0V when I plugged the charger)

              Voltage should be stable not 0V what is your output voltage of the charger?
              Page 39 BATT1 pin 1234 voltage with battery in?

              Measure voltage with charger without battery and remove the charger only with the battery all the coils
              PL4301
              PL4302
              PL4401
              PL4501
              PL4601
              PL4701
              PL4801

                Comment

                • Smilo_
                  Member
                  • Sep 2014
                  • 20
                  • FRance
                  #5
                  Re: Lenovo L430 won't turn on

                  I said something wrong about the measures I had done.

                  I measured all voltage with the charger plugged without battery (dead). What I wanted to say is for Pl4301,pl4302, PL4601 and PL4501 I got voltage for 2 seconds and after 0V. I had to plug/unplug for this 4 coils to get Voltage.
                  I can't turn off the laptop with the power button. I plug it in, it starts to on. The startup button comes green fix, battery led is orange fix without battery inside and mute sound button comes orange fix after the fan starts spinning 1 sec. Then those 3 leds still in this condition and i can't turn the laptop off, I have to unplug it.

                  I will do what you ask asap.

                  The output voltage of my charger is 20V

                    Comment

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