B&K amplifier Fans

I owned M200 Sonatas also and they were great amps, they're one of those components I wish I didn't sell. I use a B&K ST 2140 for my second audio zone and it sounds great and has served me well. My father still gets a lot of enjoyment out of his Ref 20 and 5x105 ch B&K amp. B&K gear is hard to beat for the money.

Need your advise: I just picked up a ST202, which I rather admire. It worked perfectly, then, after swapping out speaker cables, it quickly ceased producing sound out of one and then both channels. (I don't think I clipped anything, tho it's possible). It still powers up--I tried swapping out all the fuses, power cord, etc.-- to no avail. Caps, transformers, etc. look fine and I saw no loose connections etc. Any ideas as to what the cause might be?
Thanks in advance.

have you checked ALL of the fuses? There are fuses inside the amp.