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Sony Vaio SVF1521 (DA0HK9MB6D0) no power

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    #1

    Sony Vaio SVF1521 (DA0HK9MB6D0) no power

    I have this laptop acting very weird. 3.3v and 5v are present, charging LED comes on if battery is inserted. When pressing the power button, power LED comes on and stays on as long as the button is held down, then turns off. That's all it does. No power to the CPU, RAM or PCH and the fan does not spin.

    I have reflashed BIOS using a dump i found on 1bios.ru and it does the same. Any suggestion guys? Thanks.
    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!
    Tags: None
    #2
    Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

    try changing kbc if you have in spare...

    Comment

      #3
      Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

      What i have noticed is i do get power to the BIOS chip after i push the button but it's the only thing that changes. I do not get any communication on the BIOS. I don't have a KBC handy but will look for one.
      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

        #4
        Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

        Originally posted by Th3_uN1Qu3 View Post
        What i have noticed is i do get power to the BIOS chip after i push the button but it's the only thing that changes. I do not get any communication on the BIOS. I don't have a KBC handy but will look for one.
        me happened with an vaio i5 (i dont remember the model) the same issue , flashed bios no change , for my luck i had a scrap identical motherboard , I took the chip bios replaced and solved work fine.

        Comment

          #5
          Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

          I have spare BIOS chips, will try.
          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

            #6
            Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

            Check lid closing sensor .

            Comment

              #7
              Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

              Hi do you solved problem ?
              JOVY RE7500

              Comment

                #8
                Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                Hi
                change npce985la0dx .
                JOVY RE7500

                Comment

                  #9
                  Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                  Originally posted by Th3_uN1Qu3 View Post
                  I have this laptop acting very weird. 3.3v and 5v are present, charging LED comes on if battery is inserted. When pressing the power button, power LED comes on and stays on as long as the button is held down, then turns off. That's all it does. No power to the CPU, RAM or PCH and the fan does not spin.

                  I have reflashed BIOS using a dump i found on 1bios.ru and it does the same. Any suggestion guys? Thanks.
                  bios problem i solve this programe bios chip and then ok

                  Comment

                    #10
                    Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                    i have facing same problem..guys did u find the solution o this issue pls help me out.....

                    Comment

                      #11
                      Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                      Originally posted by farhad ali View Post
                      i have facing same problem..guys did u find the solution o this issue pls help me out.....
                      Hi
                      you must change NPCE985la0dx
                      JOVY RE7500

                      Comment

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