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Beolover SyncDrive: DC Platter Motor Replacement for Beogram 4002 and 4004 (Type 551x and 552x)

Late Beogram 4002 and the 4004 (Types 551x and 552x), which have DC platter motors instead of the earlier synchronous AC motors usually suff...

Sunday, January 4, 2026

Beogram 4002 (5503): Installation of a New Carriage Motor

I recently did a warranty repair on a Beogram 4002 (Type 5503) that I had sold earlier in 2025. It needed a new solenoid switch. My customer decided to also get a new Beolover Carriage Motor for Beogram 4000, 4002, and 4004 installed, while the unit was on the bench.

The new motors make less noise and vibrations. They also run at a lower current than the original motors. This puts less stress on the H-bridge transistors, which have a tendency to fail occasionally.

This shows the original motor still installed:

I unsoldered the two leads and removed it:
This shows it opened up with the new motor next to it for comparison:
The new motor is a bit shorter, i.e. the leads can be conveniently fed through the cutout in the bottom of the enclosure:
This shows it installed:
I tested the unit and as usual the carriage is now running much more quietly. Beolovely!


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