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satellite A300 not charge

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    #21
    Re: satellite A300 not charge

    if u cannot measure any voltage u have something bad in front of it, because he must have supply voltage. start from the beginning and measure 3.3V supply ic

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      #22
      Re: satellite A300 not charge

      Did you fix it gcomputers?

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        #23
        Re: satellite A300 not charge

        Originally posted by Ramee View Post
        Did you fix it gcomputers?
        no i m waiting for the chip , the shipping to Albania takes 1 month.
        i will notice when i change it

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          #24
          Re: satellite A300 not charge

          replaced IC chip the same problem not charging anybody have schematic or any idea?
          5v now is present but 3,3v is not present in any point .

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            #25
            Re: satellite A300 not charge

            so start measuring 3.3V supply

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              #26
              Re: satellite A300 not charge

              Originally posted by ktmmotocross View Post
              so start measuring 3.3V supply
              I don t have schematic model PT10G

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                #27
                Re: satellite A300 not charge

                Try this
                Attached Files

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                  #28
                  Re: satellite A300 not charge

                  Thanks Atsio for the schematic .

                  i checked it i find on U23 point 4 have 3.3v , on point 3 have 2v .
                  replaced U23 the same voltage is normal to have 2v on point 3?

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                    #29
                    Re: satellite A300 not charge

                    solved solved solved I find Q39 that not have voltage to point 1234 changed it and all ok charge .
                    Thanks to all ATSIO KTMMOTOCROSS THEUNIQUE ecc.

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                      #30
                      Re: satellite A300 not charge

                      Hye gcomputer u means q39 not have voltage to point 1,2,3&4? . as i read that mosfet got voltage from that pin with direct got 3v. Maybe 5,6,7,8 not get voltage cause gate q39 is open and they cant supply 3v voltage to use on u23.


                      If i mistake from my reading please advice
                      Attached Files

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                        #31
                        Re: satellite A300 not charge

                        Originally posted by sasser View Post
                        Hye gcomputer u means q39 not have voltage to point 1,2,3&4? . as i read that mosfet got voltage from that pin with direct got 3v. Maybe 5,6,7,8 not get voltage cause gate q39 is open and they cant supply 3v voltage to use on u23.


                        If i mistake from my reading please advice
                        Q39 pin 5678 have 19v , pin 123 4 have 3,3v .

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                          #32
                          Re: satellite A300 not charge

                          Yes! Thats correct.
                          Pin 5,6,7,8 act like input
                          Pin1,2,3 output and pin 4 gate adjust.

                          Sometimes the problem its from gate voltage supply.

                          It this case you can actually inject voltage in to that gate to see if it opens that fet.

                          Nvm. GJ i love a good happy ending fix
                          Just cook it! It's already broken.

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