what are the most common causes?
and are they easy to cure?
dead keys
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Synthaholic
- Expert Member
- Posts: 1206
- Joined: Tue Aug 21, 2007 5:43 pm
- Gear: Motif XS6, TX802, D-550, A6
- Location: NH
Re: dead keys
The answer, as is often the case, is "it depends".
What synth? Do just a few keys not work? Do no keys work? Does every 8th key not work? In what way do they not work--no note when pressed? No velocity? No aftertouch?
Most often a dead key is due to a dirty or faulty contact. Some synths use leaf-springs, some use J-wires and a bus bar, some use membrane switches, and the procedure for cleaning/repairing them can vary. Other causes of dead keys include a loose or dirty connector between the keybed and the main board; this often causes every X keys to not work.
Generally, the first thing to do is to open it up and visually inspect the key contacts. But if you post what kind of synth/keyboard you're talking about, we can offer more specific advice regarding your gear.
What synth? Do just a few keys not work? Do no keys work? Does every 8th key not work? In what way do they not work--no note when pressed? No velocity? No aftertouch?
Most often a dead key is due to a dirty or faulty contact. Some synths use leaf-springs, some use J-wires and a bus bar, some use membrane switches, and the procedure for cleaning/repairing them can vary. Other causes of dead keys include a loose or dirty connector between the keybed and the main board; this often causes every X keys to not work.
Generally, the first thing to do is to open it up and visually inspect the key contacts. But if you post what kind of synth/keyboard you're talking about, we can offer more specific advice regarding your gear.
Two VCO: thanks to the push rods, one can choose several forms of waves at the same time!
(from a Babelfish translation of a Jupiter-6 site)
Yamaha: Motif XS6, TX802 Roland: D-550 Alesis: A6 Andromeda
(from a Babelfish translation of a Jupiter-6 site)
Yamaha: Motif XS6, TX802 Roland: D-550 Alesis: A6 Andromeda
Re: dead keys
A quick word of warning - if it uses membrane switches - DO NOT CLEAN WITH ELECTRONICS CLEANER!!!!
I just wrecked a half an octave on my Matrix 6 by spraying Radio Scrap Precision Electronics Cleaner around the rubber membranes.
Distilled water is best.
I just wrecked a half an octave on my Matrix 6 by spraying Radio Scrap Precision Electronics Cleaner around the rubber membranes.
Distilled water is best.