Korg Forums

maphill · Full Member Joined: 17 Sep 2009 Posts: 217

I think I remember someone saying that some of their keys sounded (acoustically) different that others. I had most of the B's, C's and some D's that had a slightly different clunk than others.

What was worse was a couple B's were harder to depress. They were sticking.

I found the problem was insufficient space between the front of the white keys and the front portion of the body. A couple keys were actually coming into contact and sticking.

The solution? With the keyboard on the stand, I loosened the large-headed bolts and then inserted the cardboard inserts that came with the unit. With these bolts loose, the keybed was able to slightly move back as I inserted the spacers. I re-tightened the bolts, removed the inserts, and enjoyed an even, non-sticking feel once again.

I could imagine that the keybed could possibly shift slightly during shipment, especially if the spacers weren't in place and the keyboard was "front down". I can see why Korg recommends using the spacers during shipment as a just in case.

For those of you brave enough to open your unit, I'd recommend the spacers are in place during the operation to ensure proper alignment during re-assembly.

Hope this helps someone.

Mark

P.S. PLEASE! Do NOT clutter this thread with posts about opinions, speculations, and complaints, there are plenty of other threads already covering that. Information and relevant questions only. Thanks.
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Korg KRONOS 73, Trinity Pro, Monotron,
Roland FA-06 and Fantom 6, Roland TDK-15
Big Knob, Sonar (Previously, OASYS 76)

panrixx · Posted: Sun Sep 11, 2011 12:22 am Post subject:

Should be getting delivery of my K88 on Tuesday, so are the large-headed bolts you refer to obvious?
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Rhodes 73 Mk1; Kronos 88; Synthex; Electribe EMX-1; Motif XS Rack; Yamaha DX7IIFD; Yamaha MM8; Roland Alpha Juno-2; Roland JV-2080; Tascam FW-1884.

maphill · Full Member Joined: 17 Sep 2009 Posts: 217

billysynth1 · Posted: Sun Sep 11, 2011 5:35 am Post subject:

I got my 88 yesterday. The keys on this board are strange to say the least. Grab any one of the black keys and pull it forward it bangs against the white keys and then springs back. You can also do the same with the white keys...just press on a white key and pull forward down to the casing, you will hear a bang each time your pull it down and hit the casing. It then springs back...Whats this bull crap about????

Who created this keybed...??

This does not happen on my Oasys88, JP80 or Vsynth.
Why isnt the chasis metal or hard plastic, its that cheap wood mds or whatever its called, rub you hand under the board it feels as though bits of chip wood are going to fall off. I have mine sitting a top of my oasys.
Good luck to all you dudes taking it on the road with you.

Billy
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Yamaha C1 Grand Piano.
Korg Oasys 88, Jupiter 80
Kronos 88, V Synth GT
I am a student of classical piano...I am not a classical pianist.

sparkie · Posted: Sun Sep 11, 2011 3:11 pm Post subject:

burningbusch · Posted: Sun Sep 11, 2011 3:25 pm Post subject:

sani · Posted: Sun Sep 11, 2011 3:32 pm Post subject:

X-Trade · Posted: Sun Sep 11, 2011 3:41 pm Post subject:

Metal isn't actually a popular material for larger and more delicate systems because it expands and contracts more than wood does.

It's called MDF by the way - medium density fibreboard. Basically as said elsewhere here, fine wood dust and chippings reconstituted into a solid material using glue. Not that different to the material used for some hamburgers in certain fast food chains... Rolling Eyes

I think others have got the point quite well here - instruments do have to be taken care of. I don't let anyone else move my equipment unless I really know they will take care of it.
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Current Gear: Kronos 61, RADIAS-R, Volca Bass, ESX-1, microKorg, MS2000B, R3, Kaossilator Pro +, MiniKP, AX3000B, nanoKontrol, nanoPad MK II,
Other Mfgrs: Moog Sub37, Roland Boutique JX03, Novation MiniNova, Akai APC40, MOTU MIDI TimePiece 2, ART Pro VLA, Focusrite Saffire Pro 40.
Past Gear: Korg Karma, TR61, Poly800, EA-1, ER-1, ES-1, Kawai K1, Novation ReMote37SL, Boss GT-6B
Software: NI Komplete 10 Ultimate, Arturia V Collection, Ableton Live 9. Apple OSX El Capitan on 15" MacBook Pro

panrixx · Posted: Sun Sep 11, 2011 5:02 pm Post subject:

My Yamaha MM8 has the same composite base and there have never been any problems. It's a base and for this component of the keyboard it serves it's purpose well.
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Rhodes 73 Mk1; Kronos 88; Synthex; Electribe EMX-1; Motif XS Rack; Yamaha DX7IIFD; Yamaha MM8; Roland Alpha Juno-2; Roland JV-2080; Tascam FW-1884.

maphill · Full Member Joined: 17 Sep 2009 Posts: 217

MarPabl · Posted: Tue Oct 25, 2011 6:22 pm Post subject:

Ok I can confirm that maphill's solution worked for my Kronos 88, RH3 keybed from Japan.

I had clicking notes on C3-C4 and C5-C6 and by removing those large-headed bolts I was able to eliminate the clicking noises.

I repeated the procedure several times, because when I adjusted some keys, then other (C6-C7) began to make the clicking noise.

My last shot was to put all my bank statements in front of all the keys, then put again those bolts and removing those bank statements. After all, I've found a proper use to those bank acounts LOL Laughing

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Current gear:

Access Virus TI2 Whiteout Keyboard (111/150), Access Virus TI2 Polar DarkStar Special Edition, Gibson Custom Lite 2013, Roland MV-8800 Dancing

PinkFloydDudi · Guest

madbeatzyo111 · Guest Joined: 13 Jun 2011 Posts: 379

My (high end) Roland DP also uses MDF for the bottom panel. It bothers me and I wish they had used a different material, but I assume it's needed for its light weight and acoustic properties--maybe to damp out the hammer action noise, etc. You'll find MDF in most speaker/monitor housing too.

The keys are rock solid and don't move in any way other than up and down. However, they do also make a loud clunking sound--in fact I'm pretty sure PHAIII is one of the loudest hammer actions, probably louder than RH3 and certainly more than GHA.

rockstar898 · Joined: 22 Oct 2011 Posts: 13 Location: Murrells Inlet, SC

Mark - I'm on my 3rd Kronos. My first one had the dreaded double hammer problem so bad it was unplayable, so Guitar Center paid to ship it back and sent me a replacement, which also had the problem, although not as bad.

At that point, GC put me in contact with Korg, who directly sent me a new Kronos last week, straight off of the boat from Japan. It came with the new keybed (I could tell a dramatic difference in feel and playability from the first two), and it had the 1.5.2 OS already installed. With the double hammer issue resolved, I now had this very annoying and loud clonky click on 4 keys: the B below middle C, and G/A/B two octaves higher.

I REALLY didn't want to have to go through another technical support call or possible replacement, and your 5 minute fix completely solved the problem. Now, finally, my Kronos sounds AND plays like a million bucks.

Thanks dude!
J
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Gear: Korg KRONOS 88, Korg Trinity 61, Roland V-Synth GT 2, Korg nanoKey2, Presonus FireStudio Project, Novation ZeRO MKII Control Surface
Software: Korg Legacy Digital Collection, M-Tron Pro Virtual Mellotron, Komplete 8, 8dio.com's Requiem & Liberis AllChoir Bundle, 8dio Adagio Violins, Melodyne Studio 3
DAW: Logic 9.1.8 on OS X Lion 10.8.2

maphill · Full Member Joined: 17 Sep 2009 Posts: 217