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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, April 23, 2015

Beomaster 8000: Replacement of the Speaker Switches

The final step of my current Beomaster 8000 restoration was to replace the original speaker switches with new encapsulated ones. Due to the encapsulated construction the new speakers do not have the PCB style base plate that is used in the Beomaster to align them with the small compartments that holds the speaker switches in place. I recently designed some laser cut adapter plates that fit the new switches. More information about this procedure can be found in this blog entry.

Here are a few pictures of this procedure:
This shows the original switches removed from their compartments and turned around:

New switches and adapter plates installed:
And new switches installed in their compartments with the heat sink cover back on:

This concludes the restoration of this Beomaster! Now I will test it for a while in my Beosystem 8000 to make sure there are no loose ends.


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