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    Pioneer PL-400 Oscilloscope calibration issue.

    I've got a Pioneer PL-400 that seems to be having some speed wobble issues. I got this turntable several years ago and it was not working at all. One of the large caps for the motor driver had failed (C10, C11, C12, one of those) as well as the trimpot for 33rpm had broken (VR1). The trimpot...
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    Acquired a Pioneer PL-400 turntable - Some questions

    Hi, I recently bought a PL-400 cheaply with the speed running slow. I fixed the speed by replacing the trimpots on the motor control circuit board. It seems to be working fine now. I had some questions about the behavior though. When the turntable stops, is the platter supposed to freespin...
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