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Linn Axis Repair

Discussion in 'd.i.y.' started by Scoobydoo, Feb 11, 2019.

  1. Scoobydoo

    Scoobydoo Where are you?

    I've just been given a Linn Axis. Usual story, there's a problem with the PSU. It'll start spinning and then after a couple of minutes it starts to slow down. I can't find anybody who services or repairs the PSU board, so I'm wondering what other options I have? Surely something like a Lingo could be connected without too much hassle?
     
  2. david ellwood

    david ellwood Kirabosi Kognoscente

    Sounds like it’s electrically fine.

    How does the motor bearing feel?
     
  3. Arkless Electronics

    Arkless Electronics Trade: Amp design and repairs.

    You didn't look very far then;)
     
  4. linnfomaniac83

    linnfomaniac83 I bet you can’t wheelie a unicycle!

    The Lingo costs as much used as a good condition, working Axis. It is possible to repair the axis PSU though. I’d start with replacing all the electrolytic caps and see how it goes. There are some diodes which can fail and cause issues too but its a few years since I’ve worked on one so without one in front of me and/or schematic, I couldn’t say off the top of my head. Sometimes op amps or output transistors can go bad too but it’s unusual and it probably wouldn’t spin the platter up at all in that case. I must stress, only work on it yourself if you have some experience and have a way of current limiting it when testing it. I’d take it on myself if I weren’t already rather busy. If you’re still stuck in a few weeks, drop me a PM and I’ll help if I have time.
     
  5. david ellwood

    david ellwood Kirabosi Kognoscente

    The axis was the first linn motor controller to have a high start voltage that subsides after it gets the platter moving and then goes into low noise reduced voltage mode.

    It relys on the platter inertia to keep it moving and will often fail to spin if disconnected.

    Sticky bearings are the most likely issue but a recap is probably prudent also.
     
  6. Josephli

    Josephli New Member

    It can be sprayed or machined after lamination.
     
  7. peterm

    peterm pfm Member

    Eh?
     

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