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This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Seems my trusted Beogram 4000 through many years has finally given up after playing Bolero.
Today, it simply won't spin the platter. Everything else is working. The strobo light turns on when pressing the 33 button - and the arm travels to start position and lowers when pressing the start button. The motor for the platter, however, will not spin.
I opened the deck to look for obvious candidates like a broken chord but what has attracted my attention is the capcitors.
Here is how they look today - rather burned:
And this is how they looked some years back when I was also a bit worrying about them.
Could this be the reason?
And is there a way to test them?
Any help is appreciated.
Filip
Yes, you are fortunate you got as many good years that you have with the original capacitors in your Beogram 4000. After forty plus years though it is about time for a restoration. Here is a link to some Beogram 400x restorations I did a few years back. The Beogram 4000 starts on this page. You will likely not have to go through as many things as I did with mine but it will give you an overview of the type of things that might have to be done. The capacitor replacement would be my suggestion for the first step. Get your power supply back up to full working order and see if the platter motor can run again.
-sonavor
Thanks - any suggestions for which types to replace them with, seeing that the original specs can't be ordered?
Well, it costs more but I like using Beolover's 3D printed reservoir capacitor holder with modern replacement capacitors. The assembly fits right in the original holder. That wasn't available when I restored my own Beogram 4000 turntables so you can see what I did on my restoration here (towards the bottom of the page). A lot also depends on your skill and knowledge of electronics. The Beogram 4000 is a fairly complicated machine and I would not recommend it as a DIY project for someone's first restoration venture. If you have experience with such things and the right tools then it is something you can learn and be successful with.
Oh, I've had it open a few times during the years for adjustments, lubrication etc. but never any electrical work. I have a friend who is rather good in electronics, so I am hoping he is willing to help. Rudy's parts () are nice - but living in Copenhagen myself, I was just hoping that I could pop by the local electronic's store - oh, well I think I'll order the set from Rudy.
Copenhagen...You are a neighbor of Martin then (Dillen here on the forum). I am sure he can supply you with a capacitor kit and other parts you will need. I get quite a few parts from Martin for my B&O projects.
Just wanted to mention that it was really easy to order the capacitors. A friend of mine came over to solder them on.
So, my Beogram 4000 is up and running again.
The only other issue I have is that I can pick up a rumble in the sound from the motor carriage pulley (when it turns) when playing an LP. I don't think I had that problem before. Any ideas why that is? Also I heard that Nick could supply a metal pulley but there a few Nicks here.