PHILIPS STEREO MINI HIFI SYSTEM FW36 part 1

Flea market found for 15€ then I notice that it not work, I get money back, and still get it for 2€ Fix cassette players by changing all belts. CD-Changer is broken, need to look harder. It is vary complicated. Amplifiers left channel humming. I change IC's in channels, also humming change. I order new power-IC. I Install that in part 2.