Nice job on the mechanism, I have pretty similar model from the early 90s with what looks like the same mechanism and sadly it's completely disintegrated. But at least it still serves as a nice SCART to RF modulator for playing with ancient TVs.
It's an earthing problem. Firstly make sure that the drum earthing finger is making good contact with the drum. Also there is some metalwork that needs to connect the deck chassis with the drum amp can.
Nice job on the mechanism, I have pretty similar model from the early 90s with what looks like the same mechanism and sadly it's completely disintegrated. But at least it still serves as a nice SCART to RF modulator for playing with ancient TVs.
It's an earthing problem. Firstly make sure that the drum earthing finger is making good contact with the drum. Also there is some metalwork that needs to connect the deck chassis with the drum amp can.