I am getting faster with every unit. There are some neuralgic points that always fail. On the power supply it is definitely the transistor 7477 which was in almost all units broken or got killed during ling time testing. On the amplifier part one TDA2030 was not working – only a buzzing noise on its output. To check it I […]
Month: March 2021
Started with unit #4
Haven’t updated the site for a while since I was busy with many other things. However, although the cassette mechanism of unit #4 cannot be repaired – it needs new fly wheels – I decided to repair the other things. One channel of the amplifier is not working I guess the TDA2030 might be broken. The CD was working in […]