Sony Vaio SVF1521 (DA0HK9MB6D0) no power

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  • Th3_uN1Qu3
    Believe in
    • Jul 2010
    • 6031
    • Romania
    #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
    • Djosla
      Badcaps Veteran
      • Dec 2012
      • 246
      • Montenegro
      #2
      Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

      try changing kbc if you have in spare...

        Comment

        • Th3_uN1Qu3
          Believe in
          • Jul 2010
          • 6031
          • Romania
          #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

            • gcomputers
              Badcaps Veteran
              • Apr 2013
              • 509
              • Albania
              #4
              Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

              Originally posted by Th3_uN1Qu3
              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

                • Th3_uN1Qu3
                  Believe in
                  • Jul 2010
                  • 6031
                  • Romania
                  #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

                    • ravi_1617
                      YY Solutions
                      • Jan 2012
                      • 348
                      • India
                      #6
                      Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                      Check lid closing sensor .

                        Comment

                        • sebuncle
                          Member
                          • Jun 2010
                          • 46
                          • France
                          #7
                          Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                          Hi do you solved problem ?
                          JOVY RE7500

                            Comment

                            • sebuncle
                              Member
                              • Jun 2010
                              • 46
                              • France
                              #8
                              Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                              Hi
                              change npce985la0dx .
                              JOVY RE7500

                                Comment

                                • tanveer920
                                  Member
                                  • Jul 2015
                                  • 32
                                  • INDIA
                                  #9
                                  Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                                  Originally posted by Th3_uN1Qu3
                                  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

                                    • farhad ali
                                      New Member
                                      • Feb 2016
                                      • 9
                                      • india
                                      #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

                                        • sebuncle
                                          Member
                                          • Jun 2010
                                          • 46
                                          • France
                                          #11
                                          Re: Sony Vaio SVF1521 (DA0HK9MB6D0) no power

                                          Originally posted by farhad ali
                                          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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