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Beogram 4002: Restoration of DC Motor Video Published - Check It Out!

By popular request (really, I got quite a few emails about this!...;-), I finally completed my Beogram DC motor restoration video! It demon...

Tuesday, September 20, 2011

Beomaster 8000 Pre-Amp Re-Capping

Next, I recapped the pre-amp/input selector board (#3). This board can be completely taken out, which is what I did. I exchanged all electrolyte capacitors. One noteworthy detail on that board is that the printed capacitor symbols on the backside of the board for C120/220 (two tantal 10uF caps) are apparently showing the reverse polarity (this was the same in my first BM8000, i.e. I think this might be the case in all BM8000s...). I replaced the caps in the same polarity like the tantals, and everything seems to be fine. Here is a pic of the finished board:

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