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Lenovo Yoga c740-15iml boardview - Request

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    Lenovo Yoga c740-15iml boardview - Request

    Hello friends,

    Please anyone has the boardview of this laptop? I replaced the battery and now it's not turning on.

    #2
    Re: Lenovo Yoga c740-15iml boardview - Request

    Carefully measure the voltage to ground of each pin on the battery connector.

    Post each measurement.

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      #3
      Re: Lenovo Yoga c740-15iml boardview - Request

      I removed the battery and tried to turn on the laptop without it but now the voltages in all the board not normal, 3 and 5 volts appear for one second then lost for another one second, it keeps doing that (appear-disappear) while I use adapter, also battery connector voltage appear for one second and keep doing same. I tried another charger, but it's still doing the same.

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        #4
        Re: Lenovo Yoga c740-15iml boardview - Request

        Originally posted by geeko View Post
        I removed the battery and tried to turn on the laptop without it but now the voltages in all the board not normal, 3 and 5 volts appear for one second then lost for another one second, it keeps doing that (appear-disappear) while I use adapter, also battery connector voltage appear for one second and keep doing same. I tried another charger, but it's still doing the same.

        I did that without connecting the battery.

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          #5
          Re: Lenovo Yoga c740-15iml boardview - Request

          Friends, Any Suggestion??

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            #6
            Re: Lenovo Yoga c740-15iml boardview - Request

            I only have boardview No schematic diagram

            A schematic diagram of friends thank you please send it!
            Attached Files
            Last edited by chenwei; 03-02-2023, 11:55 PM.

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              #7
              Re: Lenovo Yoga c740-15iml boardview - Request

              Originally posted by chenwei View Post
              I only have boardview No schematic diagram

              A schematic diagram of friends thank you please send it!

              Thank you so much

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                #8
                How can I open the file? If i open the file with Tebo, there is no layout?

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