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Yamaha NU1 serviced and opened (Lots of pics) #2153148 09/18/13 03:39 PM
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helloworld1 Offline OP
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I have mentioned in the previous post about the loud key issue in this post:
http://www.pianoworld.com/forum/ubb...%20much%20louder%20than.html#Post2149359

Now I have my piano opened by technician. I have taken several photos! So enjoy. I can answer questions about what I have seen.

1. The action
2. Close up actions
3. Actions with cover removed
4. Hammer
5. Action from front
6. Action from side
7. 45W Twitter speaker
8. A black key
9. Action
10. Action
11. Very close up of the spring
12. Hammer from top
13. Hammer from side


Also a DPBSD
DPBSD

Last edited by helloworld1; 09/18/13 07:17 PM.
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Re: Yamaha NU1 serviced and opened (pics) [Re: helloworld1] #2153166 09/18/13 03:58 PM
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helloworld1 Offline OP
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The image link doesn't quite work. If you know how to get it working, please let me know.

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153217 09/18/13 05:14 PM
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xorbe Offline
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Next best thing for ya:
Originally Posted by helloworld1

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153288 09/18/13 06:32 PM
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Kawai James Offline
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Nice pictures, thank you for posting (and to xorbe for re-linking).

How long are the keys? The action appears a little different to a traditional upright.

Cheers,
James
x


Employed by Kawai Japan, however the opinions I express are my own.
Nord Electro 3 & occasional rare groove player.

"I agree that the User Manual is very good." - arc7urus, March 2019
Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: Kawai James] #2153310 09/18/13 07:09 PM
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I haven't measured it, looks shorter than a grand. The action looks quite similar to Yamaha U1 to me, just no damper.
http://www.pianoworld.com/forum/ubbthreads.php/topics/1225419.html

I am no expert on acoustics piano so I might be wrong.

Last edited by helloworld1; 09/18/13 07:54 PM.
Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153342 09/18/13 08:16 PM
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Rockin' pics!

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153397 09/18/13 10:28 PM
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[Linked Image]

Wow! That is the funkiest "real piano action" I've ever seen. Though I suppose I'm more used to seeing grand actions.

[EDIT] Added to the Nekid Pichures thread - thanks!

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153483 09/19/13 02:53 AM
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Thanks for sharing the pics. So no physical adjustments to the action to fix your problem?

Just wondering if you saw the sequence for opening it up? I assume you start with the top lid and screws at the back?

Also did he attach anything to run it in debug mode or was it done via some secret combination of the panel and keys?

Last edited by spanishbuddha; 09/19/13 02:54 AM.
Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: spanishbuddha] #2153765 09/19/13 11:56 AM
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First remove 3 screws at the back and then remove the top board.
Then disconnect the tweeters and remove 2 screws to remove the front board.
Then remove 2 screws for the key cover.

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: dewster] #2153778 09/19/13 12:16 PM
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Originally Posted by dewster

Wow! That is the funkiest "real piano action" I've ever seen.


Why it seems funky? Looks pretty normal for an upright action to me, almost like the one in textbook for this potion of the action.

Last edited by helloworld1; 09/19/13 01:42 PM.
Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153835 09/19/13 01:34 PM
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Originally Posted by helloworld1
Why it seems funky? Looks pretty normal for an upright action to me, almost like the one in textbook for this potion of the action.

You're right, I haven't seen many modern upright actions. They look kind of spartan / utilitarian compared to modern grand actions.

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: dewster] #2153848 09/19/13 01:52 PM
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Originally Posted by dewster
Originally Posted by helloworld1
Why it seems funky? Looks pretty normal for an upright action to me, almost like the one in textbook for this potion of the action.

You're right, I haven't seen many modern upright actions. They look kind of spartan / utilitarian compared to modern grand actions.


That's true. It is all about cost, especially for digital, there is no need for fancy mechanism and material. Comparing with U1, it has less wood and more plastic smile

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: helloworld1] #2153869 09/19/13 02:24 PM
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Surprisingly short key lengths though. I would imagine the difference in feel from the front of the key to the back of the key would be substantial. Not ideal. My Yamaha U3 has a much larger distance to the pivot than the NU1.

Re: Yamaha NU1 serviced and opened (Lots of pics) [Re: ando] #2153904 09/19/13 03:43 PM
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Originally Posted by ando
Surprisingly short key lengths though. I would imagine the difference in feel from the front of the key to the back of the key would be substantial. Not ideal. My Yamaha U3 has a much larger distance to the pivot than the NU1.


Could we have two individuals measure the respective distances from the front lip of the key to the pivot point?


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