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ACER E1-410 two usb ports not working

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    ACER E1-410 two usb ports not working

    Hi friends, I need help on this acer aspire E1-410 board id:
    EA40-BM MB
    13233-1M
    48.4OC10.01M

    the U6301 has no voltages on each pins , the C6302 cap has no voltage also. attached is the schematic and pic of the board. can someone please help me on this please
    Attached Files

    #2
    Re: ACER E1-410 two usb ports not working

    remove the usb extension and then measure voltage again on U6301. If voltage appears, then you have usb extension board shorted.

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      #3
      Re: ACER E1-410 two usb ports not working

      thanks for the response mcplslg123 i removed the usb extension board still pin 2 and pin3 has 5v but pin 4-8 1.1v only

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        #4
        Re: ACER E1-410 two usb ports not working

        i replaced the ribbon cable still the same issue

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          #5
          Re: ACER E1-410 two usb ports not working

          I have 5v on input of U6301CHIP pin 2 and 3 but on output pin 6-8 it shows only 1.4v

          Comment


            #6
            Re: ACER E1-410 two usb ports not working

            Originally posted by Mulong2019 View Post
            I have 5v on input of U6301CHIP pin 2 and 3 but on output pin 6-8 it shows only 1.4v
            One of the cap C6302 C6303 is leaking test those caps if not remove just to check

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              #7
              Re: ACER E1-410 two usb ports not working

              thanks i have found the C6302 CAP near the chip i removed it and test is not shorted. but i have trouble finding the C6303 cap on the board

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                #8
                Re: ACER E1-410 two usb ports not working

                Anyone can help on this please i cannot find the C6303 on the board

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                  #9
                  Re: ACER E1-410 two usb ports not working

                  Originally posted by Mulong2019 View Post
                  Anyone can help on this please i cannot find the C6303 on the board
                  C6303 is not included in the MB if the cap is not short Change U6301 IC

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                    #10
                    Re: ACER E1-410 two usb ports not working

                    problem solved replacing the chip solved the problem thank you techtiger

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