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XBox One - ADP-200BR - No Power

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    #21
    Re: XBox One - ADP-200BR - No Power

    Originally posted by stj View Post
    check q901
    So Q901 is one STD6N62K3

    I took it out from the board and i measure continuity mode.
    I get Beep between PIN 1 = Gate and Pin 3 = Source.

    And linked to it i have that two resistors we talked.
    I think they are bad... but don't know the value... of it...
    One i think was labled 3R0 = 3Ohm
    And the other no label possible to discover ... schematic would be important.

    Seems i have short or bad Q901 right ?
    Last edited by nrcslim89; 02-17-2021, 09:16 AM.

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      #22
      Re: XBox One - ADP-200BR - No Power

      Well hope this could be helpfull check the image. this is near the area that converts AC to DC correct ? because on the other side of the board i have one transformer.
      Attached Files

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        #23
        Re: XBox One - ADP-200BR - No Power

        q901 was driving the small transformer.

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          #24
          Re: XBox One - ADP-200BR - No Power

          Originally posted by stj View Post
          q901 was driving the small transformer.
          Yes correct it drives the small transformer I believe it is 5V transformer.
          But no legs should be beeping between Gate and Source correct ?!

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            #25
            Re: XBox One - ADP-200BR - No Power

            no, never

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              #26
              Re: XBox One - ADP-200BR - No Power

              Originally posted by stj View Post
              no, never
              Oh on that case seems that I have a bad transistor.
              Because outside it beeps

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                #27
                Re: XBox One - ADP-200BR - No Power

                desolder it and see if the short is on the transistor or the board.

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