Got this Beomaster 4000 the other day and have spent some time cleaning it up. A few of the dials were also loose (ie. not connected).
I found that the problem was that a small plastic piece had broken from the connection at the slider switch. I carefully superglued a repalcement piece back and the slider switches are working again!
Unfortunately I'm missing the a few of the dial covers - volume etc. I was wondering if anyone knew where I might find some of them.
In total I need to find:
(1) Clear plastic indicator piece for volume
(1) Volume dial cover - I have the bottom, but not pictured.
(1) Balance dial cover
I'd love to get this Beomaster back in top condition - it certainly sounds (and looks) good enough to deserve it.
Here's a bad pic, but it shows the pieces that are missing.