Hello HGK,
Excuse me for my bad English.
Indeed, the turntable motor of CD50 was a lot of problems.
To access, you must remove the part that supports the laser block, the
engine upside down. Most often one or two small drops of fine oil
(sewing machine) are sufficient to solve the problem.
Do not inject the oil with pressure, but rather onto a thin screwdriver
a drop, then drop this slide left along the axis of the motor, the axis is visible on the + / - 5mm beneath the table support the CD.
It's very simple, but delicate, be careful to block laser.
Avant c'était pas mal, aussi bien qu'aujourd'hui, mais en plus vieux