S
shmaller
New member
Hey all,
I just got a Kawai CN23R for free. Here's the catch: some of the keys don't work. "Don't work" means:
1. Some keys hold sustain even when the sustain pedal is not depressed.
2. Some keys have maybe a 25% chance of playing a note when they are pressed.
3. The problem seems to be isolated to certain keys - other keys seem to always work.
The first thing I did was take the back off, but other than removing the Australian nickel rattling around in there, wiring-wise everything looks OK at first inspection... The action is a mechanical hammer striking a cushioned area, under which I assume is a sensor for each hammer. I've attached a photo - the keys are at the top. I see that there seem to be sections of about 10 keys grouped together under a plastic housing, so I'm wondering if the issue might be localized to certain groups of keys that share a sensor or wiring or something?
But I'm no piano tech and not even much of a keyboardist, so I don't know what the hell I'm doing in here lol. Does anyone have experience repairing digital pianos? Or can point me in the general direction of what might need to be replaced here?
I could always take it to a piano shop but that would take the price of this thing above "free", and I will do just about anything in my power to avoid that lol.
Thanks in advance,
s
I just got a Kawai CN23R for free. Here's the catch: some of the keys don't work. "Don't work" means:
1. Some keys hold sustain even when the sustain pedal is not depressed.
2. Some keys have maybe a 25% chance of playing a note when they are pressed.
3. The problem seems to be isolated to certain keys - other keys seem to always work.
The first thing I did was take the back off, but other than removing the Australian nickel rattling around in there, wiring-wise everything looks OK at first inspection... The action is a mechanical hammer striking a cushioned area, under which I assume is a sensor for each hammer. I've attached a photo - the keys are at the top. I see that there seem to be sections of about 10 keys grouped together under a plastic housing, so I'm wondering if the issue might be localized to certain groups of keys that share a sensor or wiring or something?
But I'm no piano tech and not even much of a keyboardist, so I don't know what the hell I'm doing in here lol. Does anyone have experience repairing digital pianos? Or can point me in the general direction of what might need to be replaced here?
I could always take it to a piano shop but that would take the price of this thing above "free", and I will do just about anything in my power to avoid that lol.
Thanks in advance,
s