hifi engine

HH Scott 428a schematic/service manual (or similar amp/receiver circuit)

rickdpc's picture

My Scott Int Amp has been in my family close to 30 years and has a faint sound, sometimes intermittent. I'm about positive It's around the tone circuit and could really stand a schematic. Thanks for the read.



HH Scott 428a schematic/service manual (or similar ...

Do you mean low audio output, or it's generating noise?
Either way, if the problem is on the tone control board, it is probably bad capacitors; I would replace all the electrolytics there.

rickdpc's picture

HH Scott 428a schematic/service manual (or similar ...

I thought of shotgunning the area but both sides are affected at the same time. Thanks.