Sony WM-DC2 won't start

Discussion in 'Tech talk' started by norbit0, May 1, 2018.

  1. norbit0

    norbit0 New Member

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    Hi!

    Recently I've bought DC2 and it doesn't start at all.
    When I engage PLAY, FF or REW the mechanism runs for 2-3 secs and then stops.
    I've dissassembled everything and assembled again following steps from SONY DD Series step-by-step repair guide by Marian Mihok but it didn't help. (even I've turned over capstan ring on the other side).
    I ordered gear replacement kit and a rubber capstan ring today, but do you think it will do the trick?

    Short video:


    Cheers

    EDIT:

    I've figured out that the FG Coil is defective (measured resistance is infinity; in my second DC2 it's about 700 ohms). CX20084 (IC601) stops motor automatically if it doesn't detect impulses from coil. I connected function generator (20mV pp, sinewave, about 750-850Hz - Sony claims 1kHz in WM-DD3 SM) instead of defective coil and Walkman started working (quartz tap must be unsoldered).
    So, problem is solved, but now I have to find a good FG Coil.
     
    Last edited: May 2, 2018

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