My ESQ1 sound is working, but as I play it, some of the keys will sound extremely load and stand out above the others. It’s like someone has turned the volume up to maximum and it happens when I play more than one key such as in a combination (chord). Very annoying and it ruins the song that I’m playing. It’s really weird because it doesn’t happen immediately when I turn it on and start playing. Usually happens after I’ve been playing for a while. I suspect that it has something to do with heat in the system. The volume slider doesn’t seem to be at fault. Any suggestions?
have you tried calibrating the keybed as service manual describes? also perhaps a hard reset is due. Def look the service manual over and if you’re handy with a multimeter measure the voltages and compare to what the service manual calls for. To try and narrow it down, hook a MIDI keyboard to it and see if the problem still persists.
good luck
I tried the hard reset and all of the voices went back to the factory installed ones. That’s not a problem, because I have the writeable cartridge that I save all of my favorite voices too. I’m not sure whether calibrating the keybed would do any good. The keys that play too load are random. It’s not always the same key. It could be a C and the next time it could be an E. It usually happens when I play a chord with at least three keys in unison and it’s usually the last key in the chord, like “c” “e” “G”. The G would sound like I turned the volume up to maximum. I
My guess was that it was a problem with the velocity response (strike pressure) and/or the aftertouch sensitivity. I’d think the hard reset would have resolved that (software issue).
Since it’s not always consistently the same key or keys being the loud notes, that would tend to negate the physical key bed (hardware or internal debris) possibility.
I agree the best and next thing to do, as someone suggested, is to connect an external MIDI keyboard or controller and try to replicate the problem by playing the remote without touching the instrument’s keys. If it duplicates the problem then it would prove it’s not a mechanical or hardware problem, suggesting it is possibly an electronic circuitry component issue, or some software malfunction with the MIDI CC data for velocity curves or volume controllers. On the other hand, if there is no such volume problems playing the entire note range on the connected remote keyboard, then the issue seems very likely to be with the main keyboard mechanics or key bed and sensors. Make sense? Goos luck.
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Oh, also try the opposite test. Connect the MIDI OUT via cable to a remote sound module (or DAW in record mode), mute the internal voices, turn up the volume on the connected module midway and play the suspect keyboard as before. Do the LOUD volume notes play from the remote sound source also? That would also eliminate half the possibilities and point you in the right direction.