Turntable Trio KP-7700 (Kenwood KD-750) speed stability issue

skynetyt

Member
Trio KP-7700 - it is Kenwood KD-750 just for US market, internally it is the same turntable.

Here is the problem: when I press the play button, Quartz Lock indicator constantly flashing and the table cannot adjust speed neither to 33 nor to 45 rpm, but sometimes it locks right away from the start at 33 and 45 rpm successfully, and goes steady locked for a long period, 30 min and more..

After I turned it off - turn on - aging same flashing quartz lock indicator problem.

Any thought where to start digging? I have read troubleshoot steps from service manual, but it does not cover issue when table constantly adjusting speed.

Is it a good idea to start from recapping?

Thank you.
 
Thank you rjsalvi!
I have checked that post already. As I understood there was a problem with a quartz light, but rotation speed was steady. In my case I have floating speed and flashing light, and I can hear how the motor constantly changing speed along with flashing. I think I have to go through the manual much deeply.
 
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