This time a customer brought in a synthesizer puzzle. He tried to repair the display but desoldering the backlight may not an easy task. I suggested, to switch over to a new display. Reason being are the old components and the cheap and wonderful looking new display. In the next pictures you can see the typical leaking (and destroying the synthesizer) parts.
See the agressive electrolyte coing out of the old display. If you plan to replace such display, you have to modify the power supply to the display. By doing that you will also eleminate the aanoying whining noise from such synthesizers.
While I was in here I saw a lot of rust and corrosion. So I suggested to get rid of it. All these tactile switches had to be replaced.
But there was rust everywhere.
I cleaned all the (surface) rust, applied some rust converter and protected the surface against new rust.
And this all means nothing if you don’t do a 100% job. So like always I cleaned the fader/slider. And like always. Not with contact cleaner. Just wash it out with ipa.
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 machines and other vintage gear, based in Düsseldorf, GER. Get in touch about your synth situation now!