Today I had another Dr. Böhm Digital Drum Machine on my bench. I cleaned everything up, replaced the battery. Fortunately there was no leakage substance. I cleaned the black and white switches and replaced the smaller ones with nos parts. Unit is working and we have another happy customer;) Here are my results.
There are lethal voltage exposed in electronic devices. Unless you know what you are doing, don’t try this. If you following along, you doing so at your own risk.
I’m documenting repairs for my reference and yours.
I do synth restorations and repair with a specialty in vintage synthesizers, drum computer and other vintage gear, based in Düsseldorf, GER. Get in touch about your synth situation!