MAC A1312 Dead After Power Failure

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  • Michale32086
    New Member
    • Nov 2011
    • 1453
    • USA
    #1

    MAC A1312 Dead After Power Failure

    I had gotten in a nice MAC A1312 a bit ago..

    Did a reflow on the video card to get it up and running..

    ref: https://www.badcaps.net/forum/showthread.php?t=69512

    Had it plugged into the wall at my shop and the power failed. Damn tripped breaker..

    Now the unit won't come on at all.. It appears completely dead..

    Am I looking at a likely blown fuse on the PSU?? Or a blown PSU??
    Tags: None
    • Michale32086
      New Member
      • Nov 2011
      • 1453
      • USA
      #2
      Re: MAC A1312 Dead After Power Failure

      Well.. THAT's not good.. :^/
      Attached Files

        Comment

        • Michale32086
          New Member
          • Nov 2011
          • 1453
          • USA
          #3
          Re: MAC A1312 Dead After Power Failure

          All the blown caps are TAICON.. They don't appear to be available thru DigiKey, my go-to source...

          I know Apple is really picky about parts and such.. Should I use TAICON or are NICHICON sufficient??

            Comment

            • Per Hansson
              Super Moderator
              • Jul 2005
              • 5895
              • Sweden
              #4
              Re: MAC A1312 Dead After Power Failure

              Of course you should not use Taicon.
              They are not the best brand (not the worst either).
              Look up their specs and buy reputable brands from the major Japanese manufacturers.
              That said your issue will not only be the caps.
              Probably the switching mosfets are shorted if the fuse went out.
              Last edited by Per Hansson; 05-27-2018, 06:30 AM.
              "The one who says it cannot be done should never interrupt the one who is doing it."

                Comment

                • Michale32086
                  New Member
                  • Nov 2011
                  • 1453
                  • USA
                  #5
                  Re: MAC A1312 Dead After Power Failure

                  Awww crap.. I was hoping not have to buy a new PSU... They are about $100...

                    Comment

                    • Michale32086
                      New Member
                      • Nov 2011
                      • 1453
                      • USA
                      #6
                      Re: MAC A1312 Dead After Power Failure

                      Replacement PSU found for around $40..

                      Problem solved..

                        Comment

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