Possibly shorted component on Seagate HDD

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  • lbwlow
    Senior Member
    • May 2015
    • 125
    • Malaysia
    #1

    Possibly shorted component on Seagate HDD

    I got a Seagate SV35 series 320GB HDD with me that doesn't spin when connected to the power supply, however I noticed there one component was very hot to touch, what is the component for ? I have lookup google for the component but I can't seem to find any detail on the component. The component is circled in yellow which I have uploaded it.

    Thanks in advance
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    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30955
      • Albion
      #2
      Re: Possibly shorted component on Seagate HDD

      least of your concerns, the inductor is broken - so is the one above it!

        Comment

        • lbwlow
          Senior Member
          • May 2015
          • 125
          • Malaysia
          #3
          Re: Possibly shorted component on Seagate HDD

          @stj
          Yea, that because the other guy stack those HDD, might as well accidentally scraped off the housing of those inductors. But what the proper way of testing inductors? I have tested it with my DMM and it still has continuity.

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 30955
              • Albion
              #4
              Re: Possibly shorted component on Seagate HDD

              they are probably bad - the lower one is anyway.
              the ferrite case is part of it - if it's bigger or smaller it effects the inductance.

              you test them wih an LCR meter or a component tester, but you need to know the value and it's usually printed on the top - that you dont have!

                Comment

                • lbwlow
                  Senior Member
                  • May 2015
                  • 125
                  • Malaysia
                  #5
                  Re: Possibly shorted component on Seagate HDD

                  @stj

                  Ouch... I still remember i had a couple of those drive around last time before i scrap those. Got to dig into my junk pile again and hopefully can find one with the same PCB. But anyway, can a bad inductor without casing cause the component that I mentioned to become overheat and drive not spinning ?

                    Comment

                    • joshnz
                      Badcaps Veteran
                      • Feb 2011
                      • 969
                      • New Zealand
                      #6
                      Re: Possibly shorted component on Seagate HDD

                      Originally posted by lbwlow
                      @stj

                      Ouch... I still remember i had a couple of those drive around last time before i scrap those. Got to dig into my junk pile again and hopefully can find one with the same PCB. But anyway, can a bad inductor without casing cause the component that I mentioned to become overheat and drive not spinning ?
                      yes that is a switching converter it supply's power to something and without that supply the controller will be in error or some other part has been damaged by the broken supply.
                      My pc
                      CPU : AMD PHENOM II x4 @ 3.5Ghz
                      MB : ASUS M4A89TD PRO USB3
                      RAM : Kingston ValueRAM 16gb DDR3
                      PSU : Cooler Master 850W Silent Pro
                      GPU : ATI Radeon HD 6850

                        Comment

                        • lbwlow
                          Senior Member
                          • May 2015
                          • 125
                          • Malaysia
                          #7
                          Re: Possibly shorted component on Seagate HDD

                          ^
                          Thanks all, by replacing the broken inductor on the PCB, i get the HDD to spin again. But the HDD was bad and it was clicking. Despite that but i appreciate it and learned something new

                            Comment

                            • joshnz
                              Badcaps Veteran
                              • Feb 2011
                              • 969
                              • New Zealand
                              #8
                              Re: Possibly shorted component on Seagate HDD

                              No problem
                              My pc
                              CPU : AMD PHENOM II x4 @ 3.5Ghz
                              MB : ASUS M4A89TD PRO USB3
                              RAM : Kingston ValueRAM 16gb DDR3
                              PSU : Cooler Master 850W Silent Pro
                              GPU : ATI Radeon HD 6850

                                Comment

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