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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...

Monday, November 18, 2024

Beogram 4002 (5513): Installation of Upgrades (Beolover SyncDrive and Beo4 Commander Remote Control)

This post describes upgrades that I installed in the Beogram 4002 (Type 5513) that I just restored for a customer in California. The restoration process of this unit is posted here.

This unit received both the Beolover SyncDrive platter motor replacement and the Beo4 enabled Beolover Commander remote control

The SyncDrive directly replaces the DC platter motor of all Type 551x and 552x Beograms. These Types often suffer from intermittent RPM stability issues due to dry motor bearings, oxidized RPM relays and trimmers. The Beolover SyncDrive completely bypasses the motor control circuitry, i.e. it is unaffected by the above issues. It also improves the longterm RPM stability due to its digital control system. Installation of the SyncDrive is completely plug and play. No soldering required.

This shows the SyncDrive module bolted into the mounting posts of the original DC motor:

Next came the installation of the Beo4 enabled Beolover Commander remote system. It also installs plug-and-play without soldering. The remote module essentially taps into the keypad connector and so can control the Beogram in parallel with the keypad, which remains functional. The Beo4 version allows seamless integration of a Beogram with a Beo4 or Beoremote One controlled B&O system.
This shows the module installed together with the Beo4 remote switched to Phono:
And then it was time for a little victory lap with this beautiful restored Beogram 4002! I selected a recent acquisition for my vinyl collection, 'Man to Man' by Hot Chocolate (Big Tree Records BT89519). This wonderful album came out in 1976, a perfect contemporary to this Beogram! My favorite track is probably "Heaven Is In The Back Seat Of My Cadillac". Very funky!...;-). Of course this record was cleaned on a CleanerVinyl ProXL setup, which restored it to its original glory with quiet black space and music tracks largely devoid of clicks and pops! 
While I was enjoying some more Hot Chocolate, I focused on the installation of a new reproduction aluminum trim on the brand new hood that this Beogram came with. This shows the hood together with the aluminum trim:
I usually align the trim prior to glueing with my custom designed alignment aids that clip into the hood sides. A strip of residue free blue 3M tape allows making a pencil mark across strip and hood. Here a close-up of one of the alignment pieces:
After glueing the strip in place on top of the hood, the sides can be bent down. Beautiful!:
I will now listen to some more records with this Beogram 4002, and then it will be time to send it back to its owner in California!


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