Help wanted with a Sony PS-33
I'm trying to fix a direct drive tuntable unit, 45 and 33 rpm.
Its a Sony unit, PS-T33. Any help or advice would be welcome.
The speed control unit runs at 13 to 14 volts,
the motor appears to have windings in a square arrangement.
It has a speed sensor round the inner edge of the turntable,
which i guess is compared to the mains frequency,
but i dont really know.
The turntable doesnt rotate, even if you help it manually.
I have downloaded the manual, which includes a schematic
but no explanation of how it operates.
Any help appreciated,
I didn't find the right solution from the Internet.
Near field communication device