dell 1320 no display

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  • alihomee
    Badcaps Legend
    • Dec 2012
    • 1564
    • malaysia

    #1

    dell 1320 no display

    the cpu is not heating. but notbook can on i check with dc power supply it taking 0.40a only already try with other cpu and ram........any ideas
  • dj_ricoh
    Badcaps Legend
    • Jan 2013
    • 2073
    • uk

    #2
    Re: dell 1320 no display

    reflow?
    Just cook it! It's already broken.

    Comment

    • alihomee
      Badcaps Legend
      • Dec 2012
      • 1564
      • malaysia

      #3
      Re: dell 1320 no display

      no gpu its a intel cpu with intel bga

      Comment

      • Francisco.s
        Badcaps Veteran
        • Jan 2013
        • 691
        • Spain

        #4
        Re: dell 1320 no display

        Originally posted by alihomee
        the cpu is not heating. but notbook can on i check with dc power supply it taking 0.40a only already try with other cpu and ram........any ideas
        Did you check voltages in the main pwm circuits?

        Comment

        • alihomee
          Badcaps Legend
          • Dec 2012
          • 1564
          • malaysia

          #5
          Re: dell 1320 no display

          yes they are ok 3v and 5v present

          Comment

          • robrock1
            Senior Member
            • Jul 2013
            • 129
            • Ghana

            #6
            Re: dell 1320 no display

            CPU should heat, check if with and without cpu same power consumption is there, replace cpu, resolder cpu power ic, measure cpu voltage, also possible that the cpu is not supported by the mainboard.

            Comment

            • alihomee
              Badcaps Legend
              • Dec 2012
              • 1564
              • malaysia

              #7
              Re: dell 1320 no display

              all this i try already but the thing is that cpu voltage not present i did not have the same number of chip to replace. its a isl 6266a

              Comment

              • Francisco.s
                Badcaps Veteran
                • Jan 2013
                • 691
                • Spain

                #8
                Re: dell 1320 no display

                Originally posted by alihomee
                all this i try already but the thing is that cpu voltage not present i did not have the same number of chip to replace. its a isl 6266a
                What about VR_ON voltage level?

                VR_ON - Digital enable input. A logic high signal on this pin
                enables the regulator.

                Comment

                • alihomee
                  Badcaps Legend
                  • Dec 2012
                  • 1564
                  • malaysia

                  #9
                  Re: dell 1320 no display

                  u mean the signal on the chip which controls the cpu voltages

                  Comment

                  • Francisco.s
                    Badcaps Veteran
                    • Jan 2013
                    • 691
                    • Spain

                    #10
                    Re: dell 1320 no display

                    VR_ON - Digital enable input. A logic high signal on this pin
                    enables the regulator.
                    This signal only enables or disables the chip.

                    Comment

                    • Francisco.s
                      Badcaps Veteran
                      • Jan 2013
                      • 691
                      • Spain

                      #11
                      Re: dell 1320 no display

                      VID0-VID6 sets the output voltage as indicated in the following diagram:
                      Click image for larger version

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