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DV15 MLK MB Schematics needed

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    #1

    DV15 MLK MB Schematics needed

    The problem with this unit it's totally dead. No lights at all.

    3.34vdc and 5vdc is present at PL4102 and PL4101 respectively...
    Switch voltage: 3.1vdc

    When power switch is being pressed both CPU and GPU doesn't heat up and no supply voltage at both chipset....

    Thanks....
    Tags: None
    #2
    Re: DV15 MLK MB Schematics needed

    first flash bios, then check EC.

    Comment

      #3
      Re: DV15 MLK MB Schematics needed

      try this
      https://www.badcaps.net/forum/showthread.php?t=34711

      Comment

        #4
        Re: DV15 MLK MB Schematics needed

        I have the same motherboard with shortcircuit in the coil PL4102 (3.3v) and I think that is the NUVOTON NPCE885 BUT I don't have any schematics. Do you have something to help me through. Sorry for my english and keep this good job
        thanks

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          #5
          Re: DV15 MLK MB Schematics needed

          dv15 mlk mb schema needed

          Comment

            #6
            Re: DV15 MLK MB Schematics needed

            dv15 mlk
            no schematic
            all coil have good volt but on pl4401 have no volt
            its a gfx vcccore
            anyone know pu4404 ic name if yes plz tellme

            Comment

              #7
              Re: DV15 MLK MB Schematics needed

              Originally posted by JOHNCOOPER View Post
              dv15 mlk
              no schematic
              all coil have good volt but on pl4401 have no volt
              its a gfx vcccore
              anyone know pu4404 ic name if yes plz tellme

              Part for Pu4404 is ISL6208BCRZ! I hope to help

              Comment

                #8
                Re: DV15 MLK MB Schematics needed

                Same board, same issue (no video, no boot). PL4401 no voltage and PU4404 no PWM signal on the PWM Input (checked with oscilloscope).

                Flashed BIOS and all is OK. BIOS can be downloaded from Dell's site, then open a command prompt and type in 3520A10.exe /writeromfile and it will spit out the 8MB ROM which you can flash using programmer.

                Hope this helps.
                Originally posted by PeteS in CA
                Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
                A working TV? How boring!

                Comment

                  #9
                  Re: DV15 MLK MB Schematics needed

                  Originally posted by salawayon View Post
                  The problem with this unit it's totally dead. No lights at all.

                  3.34vdc and 5vdc is present at PL4102 and PL4101 respectively...
                  Switch voltage: 3.1vdc

                  When power switch is being pressed both CPU and GPU doesn't heat up and no supply voltage at both chipset....

                  Thanks....
                  dell inspiron n5110 is same

                  Comment

                    #10
                    Re: DV15 MLK MB Schematics needed

                    Originally posted by salawayon View Post
                    The problem with this unit it's totally dead. No lights at all.

                    3.34vdc and 5vdc is present at PL4102 and PL4101 respectively...
                    Switch voltage: 3.1vdc

                    When power switch is being pressed both CPU and GPU doesn't heat up and no supply voltage at both chipset....

                    Thanks....
                    check this

                    http://kythuatphancung.vn/download/d...matics.html?dl

                    Comment

                      #11
                      Re: DV15 MLK MB Schematics needed

                      Hi can i ask about my dell 3520 my battery is good and also the charger but it desktop you can see a no battery is detected?? what probably the problem of that?? i already test on the pin of the battery if there's a 3v yes the laptop haave 3v...

                      hope you can help me thankyou

                      Comment

                        #12
                        Re: DV15 MLK MB Schematics needed

                        I had the similar problem with my DV15 MLK MB (Dell inspiron 15 3520). only the battery led was flashing giving an error code.

                        I have manually reset the BIOS and this helped to fix the issue.

                        https://www.youtube.com/watch?v=qEx9mq66blA

                        Comment

                          #13
                          Re: DV15 MLK MB Schematics needed

                          Hi Friends i have the same laptop which is powering on but no display. please help me

                          Comment

                            #14
                            Re: DV15 MLK MB Schematics needed

                            Enjoy Schematic inspiron 3520
                            Attached Files

                            Comment

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