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quartz lock

  1. 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...
    • QSilver
    • Thread
    • motor drive ic motor failure motor issues motor not spinning oscillator pd1003 pioneer pl-630 quartz lock quartz lock issue turntable
    • Replies: 14
    • Forum: Pioneer Audio
  2. SFP

    Realistic Lab-8500 a.k.a. Canadian/Euro ltd Lab-500 - Feedback, Thoughts, Reviews?

    Looking at picking up a Lab-8500 TT. Does not appear to be much info out there on them. As far as I can tell it was a Canada (and possibly Euro) custom edition of the Lab-500. Research points to it being built by Mitsubishi (possibly ITT). It's a quartz lock direct drive. Has a repeat play...
    • SFP
    • Thread
    • direct drive lab-500 lab-8500 quartz lock realistic turn table
    • Replies: 8
    • Forum: Turntables
  3. I

    Micro Seiki DQX-1000 Quartz Lock(QL) problem. Help needed.

    The QL in my DQX-1000 is spinning the TT at 40 rpm. It's been working fine for well over 30 years since I first owned it. Months ago, the problem started but quickly returned to normal for weeks/months after one day. Now it's here to stay. I tried to locate the schematic for the QL circuitry...
    • ianm0
    • Thread
    • dqx-1000 quartz lock schematic
    • Replies: 0
    • Forum: Turntables
  4. Brivan

    Onkyo TX-4500 FM Quartz Lock Fluctuating

    Hi, everyone I have an Onkyo TX4500 that has some FM tuning locking issues. The tuning (centering) meter barely moves and, when tuned to the strong point of the signal, won't hold a lock on it - instead, the "locked", "tuned" and "stereo" indicators blink about twice per second. The...
    • Brivan
    • Thread
    • fm locking fm quartz lock onkyo centering meter onkyo fm onkyo tuning meter onkyo tx onkyo tx-4500 quartz lock quartz locking
    • Replies: 20
    • Forum: Tuners
  5. Jondubb35

    SX-1980 Quartz Lock Issues

    I recently acquired a 1980 that was fully cleaned, power supply rebuilt and the tuner supposedly aligned. The unit works and sounds great, however the quartz lock will not stay locked. Usually, right when I power the unit on, the quartz lock works as it should. After about 30 min to 1 hr give or...
    • Jondubb35
    • Thread
    • pioneer problems quartz lock receiver stereo sx-1980
    • Replies: 28
    • Forum: Pioneer Audio
  6. PROJECT 2501

    Splicing RCA cables on Technics SL-1200mkiI (Quartz Lock?!?!)

    Real quick... Anyone have an explanation as to why the quartz locked speed of the platter malfunctions when splicing new RCA cables with the OEM cables?
    • PROJECT 2501
    • Thread
    • cables mk2 mkii quartz lock rca sl-1200 splice splicing technics
    • Replies: 32
    • Forum: Turntables
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