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motor issues

  1. N

    Defect Thorens TD-125 mk2. Motor is unsteady at 45

    Hello I bought ab defect Thorens td-125 and they don't know what's broken. I didn't test if other speeds are correct with a phone. But it was not turning at 45 at all. I changed those big capacitors with panasonic 25V1000UF. I don't understand much about electronics so it was my first...
  2. QSilver

    Pioneer PD1003 IC Solution

    Seeing as this is a Pioneer chip, I figured the best place to say this was here. I've been working on a PL-630 and after some reworking and repairs, discovered that the PD1003 oscillator chip was (mostly) dead, and the motor just gently bounced back and forth. I confirmed it was the earlier...
  3. John Tulett

    ReVox B790 Turntable Erratic Speed Control - Hints & Lessons Learned

    (To conform with file uploading limits a reduced size PDF file containing the figures is attached). Purpose * To share hints and lessons learned from fixing my B790 turntable's speed fluctuations. * This report complements the earlier report, "ReVox B790 Turntable - Motor Servicing Hints &...
  4. sam562

    Pioneer PL-420 (PL-5) erratic motor speed

    Hello I found this cool looking turntable at a garage sale but it has some sort of problem with the speed, especially in 33 1/3 rpm mode. It spins erratically: slowing down, pausing, then spinning slightly backwards then forward again. Here's a video showing the problem...
  5. Homer4beer

    Fixing a Sansui XR-Q7 - Game On

    While late night surfing on auction sites I type in a few turntable make and models (finding a NOS Kenwood KP-1100 in the process that sold for $1800 however I passes on it, too steep for me once duties and shipping accounted for) and stumbled across a Sansui XR-Q7 that said the following...
  6. BilboBaggins

    Philips ga-202, motor stopped turning.

    im looking for some help troubleshooting this little gem. It started with an intermittent problem that went away whenever I tried to test it out. Now it is solid. Lights up, but no motor movement in any of the 3 speed settings. I homed the motor, and as far as I can tell, the windings seem to...
  7. Bryanosaurus

    Zenith Allegro Repair

    Hi All, I recently purchased an old Zenith Allegro console system from a second hand store. It seems like everything works and sounds great except for the turntable itself. No matter what I try, I can't get the platter to turn. When turning on manual mode and turning the platter by hand, can...
  8. Ric Harris

    Pioneer PL-400 motor spins back and forth like a washing machine Help

    Picked up and old PL-400 direct drive at the goodwill. Plugged it in and the platter agitates like a washing machine. That's one I've never seen. Any guess as to a remedy.
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