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Asus S301 Schematic or boardview

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    #21
    Re: Asus S301 Schematic or boardview

    Originally posted by JaroTech View Post
    Ok, I have to extrapolate from a schematic who don't belong for your motherboard. You should have 0V at pin 1, and what do you have at pin 4?
    Pin 1 = 0,93V
    Pin 4 = 0V

    I apreciate your kindness and time Buddy.

    EDIT: i have also 0,93V on Pins 12 and 13
    On 6 = 2,65 and on 7 to 10 = 0 volts
    Last edited by passete; 06-20-2016, 11:43 AM.

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      #22
      Re: Asus S301 Schematic or boardview

      We are supposed to be cousin, so, what do you have on the pins 5 and 6.

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        #23
        Re: Asus S301 Schematic or boardview

        Originally posted by JaroTech View Post
        We are supposed to be cousin, so, what do you have on the pins 5 and 6.
        5 = 0 Volts
        6 = 2,65 Volts (like mentioned on last post, after EDIT)

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          #24
          Re: Asus S301 Schematic or boardview

          Sorry, I did not refresh the page, I have not seen the new voltages.

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            #25
            Re: Asus S301 Schematic or boardview

            Pin 5 = 0 Volts
            Pin 6 = 2,65 Volts
            Can you see Now ?

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              #26
              Re: Asus S301 Schematic or boardview

              i think that your BQ735 IS DAMAGED
              and no vout
              give me the names of the ic's in fotos .
              Attached Files

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                #27
                Re: Asus S301 Schematic or boardview

                Originally posted by ridamouh159 View Post
                i think that your BQ735 IS DAMAGED
                and no vout
                give me the names of the ic's in fotos .
                It's possible, cause i didn't found any 3 or 5 Volts on the mobo.

                Here we Go: (j'en a fait une de plus par erreur )

                Thanks for your Time Mon Ami
                Attached Files
                Last edited by passete; 06-20-2016, 04:24 PM.

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                  #28
                  Re: Asus S301 Schematic or boardview

                  le BQ -CIRCUIT DE CHARGE - it s no responsible to 3.3v and 5v .
                  il n'est pas responsable de la coupure de3.3v et le 5v mais il peut cause la coupure de la ligne de 19v .
                  je pense que dans votre cas -les voltages que vous avez donnez pour les pieds du bq montre la coupur de la ligne de 19v .....elle est claire et pas de vout pour la charge de battery .malgrè que Vin existe 19v.

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                    #29
                    Re: Asus S301 Schematic or boardview

                    you can write the name of the ic 's in the fotos
                    Attached Files

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                      #30
                      Re: Asus S301 Schematic or boardview

                      It seems from the voltages measures, the BQ735 is indeed defective, all the voltages for the inputs (VCC and ACDET) are good, but the ACOK and the ACDRV are at 0V at the present, they should be high.

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                        #31
                        Re: Asus S301 Schematic or boardview

                        Originally posted by ridamouh159 View Post
                        you can write the name of the ic 's in the fotos
                        Ok, Voici les 2 Photos Refaites

                        Originally posted by JaroTech View Post
                        It seems from the voltages measures, the BQ735 is indeed defective, all the voltages for the inputs (VCC and ACDET) are good, but the ACOK and the ACDRV are at 0V at the present, they should be high.
                        Do you think that i should order this IC ?
                        Attached Files

                        Comment


                          #32
                          Re: Asus S301 Schematic or boardview

                          Chip5 NCP CONCERNIN CPU
                          Chip7-chip9 J7= RT8207MGQW complete DDR2-DDR3 memory power supply controller 1.8v or 1.5v
                          chip 6 je ne peut rien dire car j'ai pas trouver son datasheet .
                          JC FL = RT8239BGQW Main Power Supply Controller

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                            #33
                            Re: Asus S301 Schematic or boardview

                            http://www.datasheetbay.com/pdf/761798/RT8239B.html
                            Attached Files

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                              #34
                              Re: Asus S301 Schematic or boardview

                              give us the voltage of all pins of JC FL= RT8239B and J7 FL .
                              LE J7 on le connais qu'il cause le probleme de coupure de ligne de 19 volt et on le trouve damaged .
                              tu doit le tester .qu'il ne cause pas ici un court-circuit .
                              bonne chance

                              Comment


                                #35
                                Re: Asus S301 Schematic or boardview

                                Originally posted by ridamouh159 View Post
                                give us the voltage of all pins of JC FL= RT8239B and J7 FL .
                                LE J7 on le connais qu'il cause le probleme de coupure de ligne de 19 volt et on le trouve damaged .
                                tu doit le tester .qu'il ne cause pas ici un court-circuit .
                                bonne chance
                                Ok, je mesure d'abord les 2 IC's, JC et J7 FL ?
                                I need first to measure JC and J7 ?

                                Comment


                                  #36
                                  Re: Asus S301 Schematic or boardview

                                  What is the use to measure all the pins for the other chips when you have 0V at the output of the BQ735?

                                  Comment


                                    #37
                                    Re: Asus S301 Schematic or boardview

                                    Originally posted by JaroTech View Post
                                    What is the use to measure all the pins for the other chips when you have 0V at the output of the BQ735?

                                    Is the BQ735 the Boss sending the voltages for the 3 and 5 Volts lines ?
                                    Dumb question, but i see what you mean.

                                    Shame that others very know experts are reading and maybe moking !
                                    Last edited by passete; 06-21-2016, 04:03 PM.

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                                      #38
                                      Re: Asus S301 Schematic or boardview

                                      No, it's not a dumb question, the BQ735 will give 19V for all the other chips on the motherboard. If you don't have 19V on the power rail, nothing will function on the motherboard. So, you have 0V at the pin 4 of the BQ735, the motherboard is not powered by the adapter.

                                      Comment


                                        #39
                                        Re: Asus S301 Schematic or boardview

                                        Originally posted by JaroTech View Post
                                        No, it's not a dumb question, the BQ735 will give 19V for all the other chips on the motherboard. If you don't have 19V on the power rail, nothing will function on the motherboard. So, you have 0V at the pin 4 of the BQ735, the motherboard is not powered by the adapter.
                                        Yeah, so maybe it's better if i start to replace this IC ?
                                        No other component is getting Hot on the Mobo, so i assume that this BQ is not sending secondary 19V to the rest of the mobo ?

                                        Thanks

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                                          #40
                                          Re: Asus S301 Schematic or boardview

                                          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.

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