Well done so far !

When you replaced C1, did you mount a capacitor of similar type or did you introduce
the connection that went away with the old capacitor (the grounding has three points around
the positive pin and two of them are used).

Check for cracked solder joints at the bottom edge of the processor board (when open in
service mode), that's the row of connectors.
Also the module sitting at the bottom of the Beomaster, just below the processor.
That's module 6 if I remember correctly. Cracked solder joints are often seen where
the connectors are soldered to the board.
Finally, the processor reset circuit can fail. There's a trimmer in that circuit that sometimes
fails because of oxidation or simply comes apart physically.

Any and all of the above can be triggered by the unavoidable vibrations from servicing.

Martin

Finally back to working on this.

I did make the necessary connections with the new capacitors

Checked for cracked solder joints, but haven't found any. Checked the trimmer in the reset circuit, its still in one piece.

Here is a video of unit attempting to turn on, not sure if this helps at all:

link

I have noticed a burning smell that occurs when the unit is initially plugged in and attempting to boot. It seems to be coming from resistors 243 and 244 on board 9, which I assume must be overheating if they are becoming hot enough to produce smoke.

Nice to see someone working on this amp!

Regarding the capacitor can't tell as long as you have the polarity correct and that the one required bridge is connected then you will be fine.

Obviously it sounds as if the amp needs attention, but before this I would disconect the power plug that goes into the amp board and see if the processor fires up without it. If not work on this first, then look at the bias & offset pots which are probably ready for the bin!

I agree.
Check also that the large rectifier, you took out, has been fitted back to
the Beomaster with correct polarity etc.

Martin