JP-8000 Sticky keys

Forum for JP-8000/8080 synthesizers from 1990's

JP-8000 Sticky keys

Postby Ricoche » 10:53, 19 December 2015

Just curious if anyone has had any troubles with sticky keys? I've fixed quite a few other keyboards with sticky keys, but this is the first time with the Roland JP-8000. I'm wondering if this could be a new problem as this synth ages more. Not a problem to fix as bad or dirty grease is likely the problem. I just didn't think the JP-8000 would have this issue.
Ricoche
 
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Re: JP-8000 Sticky keys

Postby Ricoche » 06:41, 29 December 2015

Fixed the problem. Good to go now.
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Re: JP-8000 Sticky keys

Postby signalx » 17:05, 12 February 2016

How did you fixed it?
I have some sticky notes on my JP-8000.
I couldn't find inside the keyboard what makes it sticky.

Thanks
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Re: JP-8000 Sticky keys

Postby Ricoche » 11:16, 1 November 2016

The sticky keys actually have nothing to do with the grease. It's the springs. The springs lose tension over time and do not lift the key back into shape. You simply have to remove the key and pull the springs to lengthen them a bit. This increases the tension and everything will work great again. You can clean up and replace the grease with fresh amounts which I did as well. However, it's the spring tension that is the culprit. This is why after cleaning the grease the problem continues. Nobody thinks to check the spring tension. Hope this helps.
Ricoche
 
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Re: JP-8000 Sticky keys

Postby sicijk » 08:50, 29 December 2016

Hello and thanks for your insight!

One question: is it the same problem if the button seems to do not actually "press" ?
On my unit, some buttons tend to do not execute the pressing and I have to press harder them in order to have a LED to be lit/unlit etc...

If this my case has to do with grease....can you please recommend me one ?

Thank you very much in advance!
GiGi
d^_^b
sicijk
 
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