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Older digital piano needing sensor upgrade #2843050 04/27/19 05:30 PM
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f4tune81 Offline OP
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I finally got a digital piano I like (the case mainly, it is a Suzuki GP-3, c 2004, cheap on Craigslist). I never could get over using a keyboard stand due to the wiggling and such. I diligently repaired the 15-year-old sticking keys and am satisfied with the keyboard response now. However, I can perceive the give-way when the rubber boot flexes. Also it is not very responsive to light touch and easily drops notes. I think the rubber boots will probably fail soon. I can use it as is for Jazz and pieces which don't have much expression, but that leaves out a lot of what I want to play.

My question is then, would it make sense to contemplate installing a PNO Scan strip to my digital keyboard? I wonder if by plugging into Midi-in if there would be noticeable latency, and whether it is likely to work at all with the white and black keys which have very different key length properties. I would consider it to be able to keep the GP-3 mini-grand style case which doesn't rock and shift with normal playing, and looks good. What do you think?

Last edited by f4tune81; 04/27/19 05:32 PM.
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Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843092 04/27/19 10:15 PM
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I don't believe there will be any latency.
Looking at the price of the PNO scan strip... I would try repairing it, do you know if there are spare parts on the market?
Is the sound good enough to keep the sound engine? or may be you could install a little computer with a vst in case od using the strip?
What about some DIY similar to what CyberGene is doing?


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Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843134 04/28/19 06:09 AM
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Thanks Marcos; I researched that some more and have decided that this could work but not at all cost effective. I'll give it some time and just respect the piano for what it is and hopefully hone my Jazz skills meanwhile. Also I'll try to find used PNO scan strip for sale on a technician website if I can find one.

Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843145 04/28/19 07:18 AM
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Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843219 04/28/19 11:52 AM
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Maybe the action was never very good new.

Maybe the sensors can be cleaned. There are tutorials online regarding how that is done on typical sensors.

You could contact Suzuki for replacement sensors. Surely these are not bespoke but may no longer be sold:
http://suzukipianos.com/contact/

Frankly, CyberGene's idea of using a modern action makes a lot of sense. You could also buy a modern slab and DIY it into the Suzuki case.

Re: Older digital piano needing sensor upgrade [Re: newer player] #2843224 04/28/19 12:01 PM
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Originally Posted by newer player
Frankly, CyberGene's idea of using a modern action makes a lot of sense. You could also buy a modern slab and DIY it into the Suzuki case.

+1. Why would anyone want to fix a 15 year old action when you can do exactly as Cybergene said and get a modern action and just retrofit into your Suzuki case? The action would be 15 years better that way.


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Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843230 04/28/19 12:17 PM
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Would the electrical interface of a modern action be the same as that of the fifteen-year-old keyboard action being replaced? Not likely.

I think it's time to bite the bullet (aaaaaaaarggghhh! ... nasty cliche) and buy a new keyboard.

Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843242 04/28/19 01:11 PM
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The new action would be an alternative to the PNO Scan feeding MIDI into something.

It's an interesting idea, but is it worth it? Depends how much one values the Suzuki's mini grand cabinet.

Maybe the first thing would be trying to deal with the rubber contacts. Cleaning was mentioned. There are also some ways to renew the conducting surface in them if that's worn too much. But what exactly "I can perceive the give-way when the rubber boot flexes" and if anything can be done about it is a separate issue.

The GP-3 has been discussed here before: http://forum.pianoworld.com/ubbthre...ki-gp-3-mini-grande-advice-on-touch.html

Re: Older digital piano needing sensor upgrade [Re: f4tune81] #2843601 04/29/19 11:07 PM
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f4tune81 Offline OP
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Thanks for reply, I looked at the all links you provided. I will just leave the piano as is for now. I have learned that today's new digital is tomorrow's aging digital; a great selling feature for me for a new unit would be how readily it can be adjusted or repaired (read less screws and awkward disassembly, more availability of spare parts). Especially with a heavy case they are no longer disposable. The work I did on my DP was essentially an action adjustment, even though I had to use a drill chuck and a metal file not just a screwdriver. I'm a sucker for a well designed and balanced case and good appearance I admit!

https://www.dropbox.com/s/g47p9yrzyg64mx1/IMG_0647.JPG?dl=0


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