Greetings Everyone. I'm an audio enthusiast who really likes Yamaha Stereo Amplifiers, and have done so since the 1980s. I bought my first large integrated system in 1998 and paired one of these abovementioned Yamaha Amps with Polk surround speakers whilst building my own PC based mp3 jukebox out of old computer parts. I'm also a collector of sorts buying more of these 10-15 year old pieces for chip change on FB Marketplace. Alas some of these need repair hence my finding and joining of this portal. I've quite a bit of electronic servicing experience which commenced for me in the 1970s as a teenager, so I'm not afraid of a detailed schematic. Hopefully I can contribute and gain some tips from you guys. Cheers.