Asus K53SD - no power

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  • cephei328
    sparky
    • Feb 2014
    • 49
    • NewZealand
    #1

    Asus K53SD - no power

    Hi guys!

    Need help with this

    Asus K53SD motherboard - No power

    Charger controller tested OK

    System power DC/DC - is the problem

    3.3 Volts OK but no 5 Volts from the RT8206A chip

    RT8206A has 2 EN signals (for 3.3 and 5 Volts resp) When tested 3.3 Volts EN signal on pin 27 is OK but no EN signal at pin 14 (Which is EN for 5 volts). Don't have the Schematics to trace the signal path

    Help would be much appreciated!

    Thanks
    Tags: None
    • dj_ricoh
      Badcaps Legend
      • Jan 2013
      • 2073
      • uk
      #2
      Re: Asus K53SD - no power

      we need the mobo code so we can point where to look and check.
      you mobo code its Compal LA-....?
      Just cook it! It's already broken.

        Comment

        • atsio
          Badcaps Veteran
          • Oct 2013
          • 819
          • Greece
          #3
          Re: Asus K53SD - no power

          Originally posted by dj_ricoh
          we need the mobo code so we can point where to look and check.
          you mobo code its Compal LA-....?
          Asus uses only Asus boards

            Comment

            • dj_ricoh
              Badcaps Legend
              • Jan 2013
              • 2073
              • uk
              #4
              Re: Asus K53SD - no power

              Originally posted by atsio
              Asus uses only Asus boards
              but i saw a K53; i dont remeber if it was F or T but i did had compal board
              i swear
              Just cook it! It's already broken.

                Comment

                • atsio
                  Badcaps Veteran
                  • Oct 2013
                  • 819
                  • Greece
                  #5
                  Re: Asus K53SD - no power

                  Originally posted by dj_ricoh
                  but i saw a K53; i dont remeber if it was F or T but i did had compal board
                  i swear
                  Yes, you are right, I am sorry

                    Comment

                    • cephei328
                      sparky
                      • Feb 2014
                      • 49
                      • NewZealand
                      #6
                      Re: Asus K53SD - no power

                      Well, Its a Asus Motherboard K53SJ. For me finding Schematics is hard.

                        Comment

                        • hansie55
                          Badcaps Veteran
                          • Dec 2013
                          • 254
                          • Netherlands
                          #7
                          Re: Asus K53SD - no power

                          The onliest thing I could find for the K53SJ (=mobo K53SV) up till now is the board view.
                          Anybody found the schematics already?

                          Is there a unlocked Bios for this machine? I only can find the Slic2.1.
                          Last edited by hansie55; 11-25-2014, 04:33 PM.

                            Comment

                            • ala_borbe
                              aka Donald
                              • Apr 2011
                              • 1625
                              • Malta
                              #8
                              Re: Asus K53SD - no power

                              im not a memeber, thay have it

                              http://www.elvikom.pl/viewtopic.php?...016&hilit=x53s
                              Im Back... sort of...

                                Comment

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