The broken tuning part is (was) merely a friction clutch.
Beomaster 1400 (M/K) was produced in the late 1960s, and since 1980 there were no more working clutches. They had all disintegrated due to the choice of material.
Luciky, the tuning will work fine none-the-less, – just without the flywheel effect.
The OPA213… is end of life. No longer produced. Grab them while you can.
Or grab a kit containing them, that is pretty much based on the same upgrade theory.
You could put a scope to the output of the tracking opto and follow the signal through the
electronics but, if your deck has not yet been restored with new capacitors etc., I think
that would be the place to start as more issues will almost certainly arise after this one has been fixed.
Yes, the cam wheel on top needs to come off.
You can take it off and, while keeping the strings tight, take out the worm gear assy with
the felt clutch, and put back the cam while working with the clutch assy.
