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#2264527 - 04/20/14 10:59 AM DIsassemble Kawai MP10/MP11
prox Offline
Junior Member

Registered: 04/19/14
Posts: 2
I'm a happy new owner of a Kawai MP11, after being quite unlucky and having to return 2 MP10s and 1 MP11 (1 MP10 had no sound, 1 had stuck and mildly damaged keys, and the first MP11 had a several damaged keys).

After about a month, I noticed a new (fairly minor) noise coming from one key. Nothing worth returning (thankfully!), but I wanted to make sure there were no objects obstructing it, so I took off the front panel. There was nothing, and I can almost certainly chalk this up to the increased humidity from spring.

Unfortunately, the headphone jack cable is super short, and so I can't reconnect it before putting back the panel. There is not even 2cm of clearance, probably so that this cable never gets in the way.

Long story short, my options are to create an extension cable, or more thoroughly take apart the MP11 to connect that cable in the order intended. Has anyone taken apart their MP10 (the overall design looks very very similar) and has any advice or quick instructions? Since I don't use the headphone jack, this isn't really urgent. The cable looks much like a PC fan cable, but it's actually a little smaller, so I'd probably have to make my own extension cable.

As a side question, what are "normal" keybed changes over time, and do people eventually get these DPs regulated like an acoustic? My keyspacing is overall pretty good, but spring brought 2 key noises now (both liveable, even though I'm picky) and two very minor key raisings (< 1 mm, not very noticeable). My impression from lurking on this forum for a while is that when you introduce real wood, you have to accept some of the side effects that acoustics have with regulation.

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#2264538 - 04/20/14 12:08 PM Re: DIsassemble Kawai MP10/MP11 [Re: prox]
dewster Online   content
4000 Post Club Member

Registered: 12/07/09
Posts: 4354
Loc: Northern NJ
Originally Posted By: prox
The cable looks much like a PC fan cable, but it's actually a little smaller, so I'd probably have to make my own extension cable.

That's probably what I would do. Though make sure that it won't move around and get in the way of the key actions.

Originally Posted By: prox
My impression from lurking on this forum for a while is that when you introduce real wood, you have to accept some of the side effects that acoustics have with regulation.

It introduces a lot of bulk weight as well. I'm still not convinced wood is necessary for a realistic DP action, though the plastic ones out there don't strike me as overly optimized.
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#2264692 - 04/20/14 07:41 PM Re: DIsassemble Kawai MP10/MP11 [Re: prox]
lolatu Offline
Full Member

Registered: 11/01/13
Posts: 481
Loc: UK
Here is a thread "NEKID PICHURES (Kawai MP10)" that may or may not be useful. Google image search is helpful for things like this (and most roads lead to this forum!).
_________________________
Kawai CA95 / Pianoteq Stage / Sony MDR-7506 / Steinberg UR22
In the loft: Roland FP3 / Tannoy Reveal Active / K&M 18810

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#2264793 - 04/20/14 11:45 PM Re: DIsassemble Kawai MP10/MP11 [Re: lolatu]
prox Offline
Junior Member

Registered: 04/19/14
Posts: 2
Originally Posted By: lolatu
Here is a thread "NEKID PICHURES (Kawai MP10)" that may or may not be useful. Google image search is helpful for things like this (and most roads lead to this forum!).


Thanks! I have been lurking for a while and thought I saw/found most of the main MP10 threads, but I either missed that one or forgot about it. It's still not clear the minimum amount I'd need to take apart to get at the headphone jack, but it would definitely include that first large top piece.

An extension cable seems easiest, since even if I took everything apart, I wouldn't be able to address my little noise issue, as I have no experience with key regulation (I take apart computers routinely, but I'm not particularly mechanically oriented). Taking off the front piece just re-assured me there wasn't any foreign matter below the keys.

Of course, since I don't use the headphone jack, I'm also fine with just leaving it until something else needs professional servicing. That's why I'm curious if getting the action regulated is common (or inevitable) with wooden-key DPs, including models like the AvantGrand.

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#2265484 - 04/22/14 07:46 PM Re: DIsassemble Kawai MP10/MP11 [Re: prox]
puff Offline
Full Member

Registered: 11/03/05
Posts: 222
Loc: oxford UK

Inevitable - over time.

But a pretty long time. My 14 year old U3 upright has worn in well in the center of the key-bed - like a nice worn-in pair of old favorite shoes.
There is side to side key slop.Short of re-bushing the keys a dodge is to turn the front-rail pins a bit with pliers (off the key axis) to take up the gap.
If the keys are slanting just put a bit of wood to the top of the pin and tap with a hammer.
Key heights are adjusted by adding or removing paper/card washers from the balance pin in the key center.

Its not rocket science.

Because I play finger style guitar I have gouged the wood just underneath some of the sharp keys - so keep your nails trimmed.

Sounds like you may have bought a 'Friday' afternoon unit. grin

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#2265608 - 04/22/14 10:56 PM Re: DIsassemble Kawai MP10/MP11 [Re: prox]
Marcos Daniel Online   content
Full Member

Registered: 06/07/13
Posts: 170
Loc: Punta Alta, Buenos Aires, Arge...
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