Repair Hohner (Logan) String Melody Reparatur Service

22. November 2020

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Repair Hohner (Logan) String Melody Reparatur Service

Repair Hohner (Logan) String Melody. This one came in with some keys not working or not working correct. Some register did not work on all keys, some keys were weak (contact problems) and on some keys the Enevelope wasn't working.

First thing I noticed were some bad electrolytic capacitors. These were not responsible for the issues but they had to go anyway, so I replaced them.

There were also some bad transistors and some more bad 10uF electrolytic capacitors that had to be replaced. Keyboard contacts were dirty and had to be cleaned as well. I also cleaned the sliders ;)

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.

Caution

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!

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