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Asus S301 Schematic or boardview

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    #41
    Re: Asus S301 Schematic or boardview

    Originally posted by JaroTech View Post
    If you want to confirm a short on the 19V power line, you must remove the resistor 10mOhm, but you did not give me the picture I asked for. So I don't know where is this resistor.
    Sorry, but must have missed this request !
    Even Now i don't see the post where you ask this?
    Can you point where is the area of the mobo you need the picture ?

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      #42
      Re: Asus S301 Schematic or boardview

      It's the post #9 on the first page.

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        #43
        Re: Asus S301 Schematic or boardview

        Originally posted by JaroTech View Post
        It's the post #9 on the first page.
        I did answer on Post 11, anyway here a better picture with all the area you asked.
        Attached Files

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          #44
          Re: Asus S301 Schematic or boardview

          Sorry, but I can't find the resistor from the pictures you already post. You should start with changing this chip (BQ735), if you still don't have 19V on the motherboard, we need more troubleshooting to find the defective component. (But I was right about the screen)

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            #45
            Re: Asus S301 Schematic or boardview

            Ok, since only 3 of us have participated to this thread, if the solution is the above, i will give 20 bucks to each.
            Just a little sacarsm.
            Will kreep updated once i receive the new BQ.

            PS: i will order only after the holidays

            Comment


              #46
              Re: Asus S301 Schematic or boardview

              @passete, I don't do this for the money, give the money for a good cause. I'm an Electronics Technician, I know what I talking about for your problem. But i don't have the schematics for your laptop, so, i extrapolate the troubleshouting from what I have.

              Comment


                #47
                Re: Asus S301 Schematic or boardview

                Originally posted by JaroTech View Post
                @passete, I don't do this for the money, give the money for a good cause. I'm an Electronics Technician, I know what I talking about for your problem. But i don't have the schematics for your laptop, so, i extrapolate the troubleshouting from what I have.
                Here again the barrier of language !
                You misunderstood me Cousin , I appreciate all your time and wisdom .
                Was hoping for others to ... ohh well,... hope you understand

                PS: Will try to find this IC on my Mobos collection, otherwise I will order it.
                Last edited by passete; 06-22-2016, 04:02 PM.

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                  #48
                  Re: Asus S301 Schematic or boardview

                  Will a BQ25A work in replacement of a BQ735 ?
                  Or is there a compatible IC ?
                  Thanks

                  Comment


                    #49
                    Re: Asus S301 Schematic or boardview

                    Hello, I have the same problem.

                    How did you solve it?

                    Thank's

                    Comment


                      #50
                      Re: Asus S301 Schematic or boardview

                      Received today the bq735, i don't see any change, still no voltage on bios ic, power switch etc ...
                      @JaroTech buddy, what is the next step ?

                      Comment


                        #51
                        Re: Asus S301 Schematic or boardview

                        10 milliOhm resistor was located near sw5901 visible smd part with R010 on it

                        Comment


                          #52
                          Re: Asus S301 Schematic or boardview

                          Originally posted by meritosari View Post
                          10 milliOhm resistor was located near sw5901 visible smd part with R010 on it
                          Hey buddy, thanks for your reply.
                          I don't understand what you mean, you want me to remove this resistor ?

                          Comment


                            #53
                            Re: Asus S301 Schematic or boardview

                            I just want to make sure that you have no short circuit as jarotech said at post#40 (cont'd post#40)

                            what about resistance on this resistor respect to gnd? low or high
                            Last edited by meritosari; 09-02-2016, 04:25 PM.

                            Comment


                              #54
                              Re: Asus S301 Schematic or boardview

                              Originally posted by meritosari View Post
                              I just want to make sure that you have no short circuit as jarotech said at post#40 (cont'd post#40)

                              what about resistance on this resistor respect to gnd? low or high
                              I don't have any continuity on the 3 Points that i've measured, but i get a low voltage, 0,98V.

                              This is strange, if i use the metal cases of the usb/hdmi as ground, i get no continuity, but i found a point on the mobo that i can measure 0,03 Ohms on the 3 points
                              Attached Files
                              Last edited by passete; 09-03-2016, 01:01 PM.

                              Comment


                                #55
                                Re: Asus S301 Schematic or boardview

                                So, you've found short circuit at 19v rail.

                                use asus ux31a2 scheme as reference, on 3 points what you've measure it was P_CHG_PATH_19V_SHAPE
                                Attached Files
                                Last edited by meritosari; 09-03-2016, 02:31 PM.

                                Comment


                                  #56
                                  Re: Asus S301 Schematic or boardview

                                  HI, i have the same problem and i changed the two fet neaarly the power boton (as show on the joined picture), and the pc turn on an reborn.

                                  Thank to all for your help

                                  Eric
                                  Attached Files

                                  Comment


                                    #57
                                    Re: Asus S301 Schematic or boardview

                                    Originally posted by nevermind1993 View Post
                                    HI, i have the same problem and i changed the two fet neaarly the power boton (as show on the joined picture), and the pc turn on an reborn.

                                    Thank to all for your help

                                    Eric
                                    Are you 1OO% sure that your problem was the same ?
                                    Before changing the fets, what were the voltages on those 2 ?

                                    Comment


                                      #58
                                      Re: Asus S301 Schematic or boardview

                                      SOLVED, SOLVED, SOLVED, ....
                                      Lol, it was just this 2 Fu""""" Fet's near the input Socket !
                                      Un Grand merci a toi nevermind1993

                                      Also a very Big Thanks to Meritosari for your patience Buddy, if one day you visit France, i will pay a Dinner

                                      To Finish, also a big thanks to the 2 Other members that Helped, you guys are Great.
                                      Attached Files

                                      Comment


                                        #59
                                        Re: Asus S301 Schematic or boardview

                                        You're welcome

                                        Comment


                                          #60
                                          Re: Asus S301 Schematic or boardview

                                          Hi all, can anyone tell me the name of those fet , i cant find them on ebay or similar for buy them.

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