Hi,
I can help you with a schematic and a translated (by me) manual, need some days for it.
The vibration is O.K., the motor is permanently controlling the frequency.
If you are tuned in and want to listen, you have to push the button to switch the motor of.
I have english written general SABA alignment instruction etc.
Service the motor with good gun-oil.
Btw. did you follow my advice with the h@cking of DVD players.
I can watch now the big "Naked City" DVD-box (NTSC) on a german DUAL DVD-player. Instruction was great.
But it depends on the machine.
Regards,
TV-collector