Beogram 4004 (5526): Restoration of the PCBs

In my last post about the Beogram 4004 (5526) that I am restoring right now, a bad capacitor turned out to be the reason why the arm would not drop at the LP setdown point. So we decided that the main board should be completely restored to prevent further capacitor issues. When one goes the others are probably not far behind. I replaced all electrolytic capacitors, as well as the RPM trimmers and relay:

This shows the 'RPM section' before

and after:

I always mount the RPM trimmers that the screws peek through the original adjustment openings so one can adjust the trimmer while the platter is turning:

While I had this board out, I also rebuilt the output board:

This shows the output relay section before

and after:

The red switch allows connecting signal and system grounds. A convenient feature in case the Beogram is used with a RCA adapter and there is some hum. Usually connecting the grounds cures that.

This concludes the restoration of the electronics...on to the DC motor, which made some nice loud shrieking noises when I tested it.