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Acer Aspire 5253 LA-7092P not power no lights

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    #1

    Acer Aspire 5253 LA-7092P not power no lights

    Acer Aspire 5253 LA-7092P laptop will not power no lights
    AC ADapter is ok, conector is ok.
    Tags: None
    #2
    Re: Acer Aspire 5253 LA-7092P not power no lights

    You have to measure the voltage on the bios chip, if voltage are ok, then flash the bios chip with programmer.
    The Night Drop Down, I Will Keep Try Until..., You Never know.
    Dushi Kòrsou, Nos Tei.

    Comment

      #3
      Re: Acer Aspire 5253 LA-7092P not power no lights

      NOt bios prob,
      I changed the charged battery 80% + AC adapter, the laptop is turned on. When I put the battery only 80% without AC charger laptop will not start.

      Comment

        #4
        Re: Acer Aspire 5253 LA-7092P not power no lights

        stops charging after a few seconds

        https://youtu.be/ihJy1rZuIyI


        Shematic:
        Attached Files
        Last edited by torla; 05-25-2015, 06:49 AM.

        Comment

          #5
          Re: Acer Aspire 5253 LA-7092P not power no lights

          just re- flash the bios or update bios

          Comment

            #6
            Re: Acer Aspire 5253 LA-7092P not power no lights

            bios update but not help.

            This is HW problem.-

            Comment

              #7
              Re: Acer Aspire 5253 LA-7092P not power no lights

              What do you mean with HW problem, but start the laptop with AC adapter without battery?
              Last edited by Life Goes On; 05-25-2015, 05:50 PM.
              The Night Drop Down, I Will Keep Try Until..., You Never know.
              Dushi Kòrsou, Nos Tei.

              Comment

                #8
                Re: Acer Aspire 5253 LA-7092P not power no lights

                perhaps charging ic or something

                Comment

                  #9
                  Re: Acer Aspire 5253 LA-7092P not power no lights

                  Do you have the schematic, so you can check the ic.
                  The Night Drop Down, I Will Keep Try Until..., You Never know.
                  Dushi Kòrsou, Nos Tei.

                  Comment

                    #10
                    Re: Acer Aspire 5253 LA-7092P not power no lights

                    Originally posted by Life Goes On View Post
                    What do you mean with HW problem, but start the laptop with AC adapter without battery?
                    Not start only AC
                    Not start only battery
                    AC + Batt start up

                    Comment

                      #11
                      Re: Acer Aspire 5253 LA-7092P not power no lights

                      During the fleshing BIOS AC charging Working, after the end of fleshing charging stops
                      https://youtu.be/oekk14vimWQ

                      Comment

                        #12
                        Re: Acer Aspire 5253 LA-7092P not power no lights

                        I think you have to try it with other battery.
                        The Night Drop Down, I Will Keep Try Until..., You Never know.
                        Dushi Kòrsou, Nos Tei.

                        Comment

                          #13
                          Re: Acer Aspire 5253 LA-7092P not power no lights

                          Take the board out and CPU.
                          Put the black probe on ground and check for short on big coils.

                          If you dont take the CPU out it will look like you got a short.

                          So take the CPU Out
                          Just cook it! It's already broken.

                          Comment

                            #14
                            Re: Acer Aspire 5253 LA-7092P not power no lights

                            Finally I found the bad component. It is the MOSFET (A04407A) near the battery connector, after replacing the laptop works great.

                            see pictures:













                            Thanks for the help.
                            Attached Files
                            Last edited by torla; 05-26-2015, 06:44 AM.

                            Comment

                              #15
                              Re: Acer Aspire 5253 LA-7092P not power no lights

                              Originally posted by torla View Post
                              Finally I found the bad component. It is the MOSFET (A04407A) near the battery connector, after replacing the laptop works great.

                              see pictures:













                              Thanks for the help.
                              Just what I needed
                              Thanks! You are lifesaver

                              Comment

                                #16
                                Re: Acer Aspire 5253 LA-7092P not power no lights

                                hello every body i need some help here please i got acer 5250 mainboard la-9072p
                                it's have 19v on power press all 3,3v is ok all 5v is ok bios have it's 3.3v but no leds on nothing when press power even rsmrst signal not present i tried to reflash bios changing i/o but still the same any help plz
                                Last edited by amr soliman; 03-12-2017, 08:23 AM.

                                Comment

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