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powersupply

  1. Dr.Fiero

    A1407 Power supply schematic

    I've scoured all the usual sources online, and can't find a schematic for this A1407 (27" Thunderbolt display). it has the Lite-On power supply (not the Flex-whatever-it-was). Board PN is 614-0505 / PA-3251-31 There's no bulged caps, fuse is OK (pretty sure there's just the one?!), bridge is...
    • Dr.Fiero
    • Thread
    • a1407 electronics fail power power supply powersupply repair thunderbolt
    • Replies: 1
    • Forum: Mac Accessories
  2. M

    MP 1,1-5,1 PowerSupply Question

    Hello, My MacPro 5,1 power-supply is making a buzzing sound. I have already tried cleaning it out, but the sound still comes and goes. I'm thinking of buying another power supply to have a backup as I use my system for work. The model on my PSU is dps-980bb-2. While online I did see some units...
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