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DV5-1020ev lightning icon flash 3 times

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    #1

    DV5-1020ev lightning icon flash 3 times

    Hello all
    I have a dv5-1020ev (mb hannstar j mv-4 94v-0 0834) which when I press the power button the lightning bolt flashes 3 times.
    I change the dc adaptor and if I remove the battery it doesnt flash at all.
    I have 19V in the mb in the end of the dc jack.
    In coils near memory and cpu I have 5V and 3V.
    in power ic (isl6237)I have 19V in pin 6 , 5V in VCC pin3, 5V in out1 pin 10,
    I couldnt find schematics for this motherboard although I have 4 schematics for dv5 notebooks none of them is correct.
    Attached Files
    Last edited by rippergr; 07-04-2015, 02:11 AM.
    Tags: None
    #2
    Re: DV5-1020ev lightning icon flash 3 times

    Flash bios first.

    Comment

      #3
      Re: DV5-1020ev lightning icon flash 3 times

      Other mobo nmbr is DAOT6AMB8F0 = Quanta

      Comment

        #4
        Re: DV5-1020ev lightning icon flash 3 times

        I already flashed bios.
        Yes the other numbr is DAQT6AMB8F0 rev:f

        Comment

          #5
          Re: DV5-1020ev lightning icon flash 3 times

          anyone has an idea what to look to fix this mb?

          Comment

            #6
            Re: DV5-1020ev lightning icon flash 3 times

            change memory,, if not help heat up NB

            Comment

              #7
              Re: DV5-1020ev lightning icon flash 3 times

              3 flash is memory error. try with only one slot.

              Comment

                #8
                Re: DV5-1020ev lightning icon flash 3 times

                I already changed memory but the problem is that it doesnt power on at all. And without the battery it doesnt even light the lighnting bolt led.
                I think its somewhere near the power ic and it can get power from ac adaptor and cant charge the battery

                Comment

                  #9
                  Re: DV5-1020ev lightning icon flash 3 times

                  Can it be something that has to do with giving power 1,8V to ram ?
                  What should I measure to check that?

                  Comment

                    #10
                    Re: DV5-1020ev lightning icon flash 3 times

                    Can someone give me schemtics for this motherboard?
                    I've search the internet but I couldn't find the correct schematic

                    Comment

                      #11
                      Re: DV5-1020ev lightning icon flash 3 times

                      Try this
                      Attached Files

                      Comment

                        #12
                        Re: DV5-1020ev lightning icon flash 3 times

                        Thanks atsio. I will start searching with those schematics.
                        It's not the exact but most of components are match.

                        Comment

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