Edac/Drobo Power Supply Fuse

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  • vletr
    Member
    • Jun 2020
    • 11
    • US

    #1

    Edac/Drobo Power Supply Fuse

    Hello,

    Looking for next steps on troubleshooting for an external power supply made by EDAC, model EA11011H-120. The power supply was dropped onto a tile floor and initially and briefly worked but the led power indicator light faded out and the power supply showed no signs of life since.

    In disassembly, I found that the large capacitor had leaked and was reading open when measured. The fuse nearest to the AC in had also blown, with no continuity. I ordered a new capacitor and fuse and replaced both, but on power-up with no load the fuse immediately blew.

    I'm curious for recommendations on what to test next. Photos attached, though I desoldered a couple other capacitors nearest to the large cap in order to test them which thus aren't in the photo. Both of those tested fine.
    Attached Files
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 31015
    • Albion

    #2
    Re: Edac/Drobo Power Supply Fuse

    when it was dropped it probably cracked a solder joint or 2,

    but about the fuse,
    check the bridge rectifier, the mosfet on the heatsink near the main cap, and those 2 small brown ceramics for shorts

    Comment

    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31015
      • Albion

      #3
      Re: Edac/Drobo Power Supply Fuse

      and explain why you desoldered atleast 2 polyester caps!

      Comment

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