EMU Emulator funktioniert nicht mehr? Reparatur eines Vintage-Samplers
26. Juli 2020
Roland Jupiter 4 Reparatur Service
10. August 2020
A "minor issue" in functionality but never the less important was a missing zener diode in the psu, which works as a overovoltage protection circuit. A "minor issue" in functionality but never the less important was a missing zener diode in the psu, which works as a overovoltage protection circuit.
Please, don´t do this!
I replaced some more more components due to the battery leak and I also re-capped the synthesizer. Most of the caps were these purple/blue matsushita electrolytic capacitors, which do leak and if if not, they intent to leak agressively and will damage your synthesizer.
Last but not least I replaced one switch with a NOS one. Thanks to Rob, who also runs a great synthesizer schematics site under http://synfo.nl
Caution
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!
