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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...

Thursday, March 3, 2022

Beogram 4002 (5513): A New Arrival From West Virginia

I recently received a Beogram 4002 (5513) from West Virginia for a full restoration. The unit arrived in good condition in a Beolover-provided shipping container. I extracted it and had a first look:

The unit is in pretty good shape. There are no major blemishes on the hood and it seems the hinges are not cracked. I removed the hood:

The aluminum surfaces are also in decent shape. The keypad shows some light traces of wear. This will be stopped by installing the Beolover Commander remote control module, which allows controlling all functions of a Beogram without touching the keypad ever again.
The plinth is also pretty good. The front corners, which are often damaged are almost pristine:
Like most later 4002 and 4004s this unit has degraded transport lock bushings as is evident from fragments like this
that are distributed around the enclosure. I removed the aluminum panels and the back of the enclosure and had a look under the hood:
I immediately noticed the platter motor was installed in the wrong orientation. My customer had sent me the DC platter motor about a year ago and I was able to restore it, but I guess I failed giving precise enough instructions to re-install it...;-). 
I plugged the unit in and pressed Start. The carriage started moving, found the LP setdown point and the solenoid activated. These are all good signs!
So, in conclusion, I think this may be a straight forward restoration project.



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