New Keybed Problem

ShaneFF · Post by **ShaneFF** » Thu Aug 29, 2013 11:45 pm

On a gig tonight, while warming up on my kronos 88. I get to the top of the keyboard and I get loud clicking and a couple of the keys velocities wont go above 25-30 Its the top b to f sharp and c sharp and d sharp are not working. Anyone ever have this. The keyboard is stored really well and Im a light player....

geoelectro · Post by **geoelectro** » Fri Aug 30, 2013 2:45 am

Any possibility something got inside and is interfering with the keys? I see this frequently in keyboard repairs.

Geo

GregC · Post by **GregC** » Fri Aug 30, 2013 3:32 am

Yep, thats the bass player placed a beer on the keyboard while keyboard player was elsewhere problem

geoelectro · Post by **geoelectro** » Fri Aug 30, 2013 1:14 pm

I just "repaired" Yamaha MO8 with two keys that wouldn't go all the way down. Found a guitar pick lodged in the hammer action...

Geo

ed_f · Post by **ed_f** » Fri Aug 30, 2013 2:14 pm

Have you checked the serial # compared to the keybed problem list? Is this a new machine? That clicking thing sounds like the issues I had with a bad key bed that got swapped out.

ShaneFF · Post by **ShaneFF** » Sat Aug 31, 2013 1:00 am

Thanks for you replys

Any possibility something got inside and is interfering with the keys? I see this frequently in keyboard repairs.

No this is kept VERY VERY WELL. Last thing to come out of the case setting up at gigs First thing to go back into case. Nothing has touched it other than my fingers, never been dropped, not even slightly.

Have you checked the serial # compared to the keybed problem list? Is this a new machine? That clicking thing sounds like the issues I had with a bad key bed that got swapped out.

Its a later serial number, after the alleged keybed problems I bouth it about a year ago and came straight from factory (or so Im told).

I haven't opened the keyboard because I have a week left on my warranty! But from fixing previous keyboards it feels like part of the mechnasim/ or the part on the pad/sensors has fallen away. The weird thing is all the bad keys are on the top octave. So it certainly is not from over playing

geoelectro · Post by **geoelectro** » Sat Aug 31, 2013 3:11 am

It just seems odd to me that suddenly a bunch of keys go bad. Each key is its own mechanism. One going bad is logical. Many at once isn't so much. I would look inside myself and see what is happening. A careful look shouldn't void your warranty.

A foreign object can affect several keys. A broken part from one key can interfere with neighboring keys. It's easy to compare a working key with a broken one to determine the problem. We have some products where a frame piece gets broken and affects several keys. However, that kind of failure is usually extreme and not covered by warranties.

Just supposing...

Geo

DavyP · Post by **DavyP** » Sat Aug 31, 2013 10:06 am

ShaneFF wrote:On a gig tonight, while warming up on my kronos 88. I get to the top of the keyboard and I get loud clicking and a couple of the keys velocities wont go above 25-30 Its the top b to f sharp and c sharp and d sharp are not working. Anyone ever have this. The keyboard is stored really well and Im a light player....

This could be caused by the keys touching the metal bar/casing at the front of the keybed. This has been discussed previously on the forum.

Whilst on holiday in the US I visited a guitar centre store and whilst examining a Kronos 88 I noticed that a bunch of three white keys around the middle of the keyboard were sticking, clicking and would not depress without a lot of pressure and had to be ht very hard. When I examined it more closely I realised that the keys were catching the metal bar at the front. As the keyboard was mounted at an angle on a wall bracket sloping downwards I concluded that gravity could have caused the keybed to move forward slightly which causes the problem.

Solution has been well documented on the forum but the keybed needs to be loosened and pushed back slightly.

ShaneFF · Post by **ShaneFF** » Sun Sep 01, 2013 12:59 am

DavyP wrote:I noticed that a bunch of three white keys around the middle of the keyboard were sticking, clicking and would not depress without a lot of pressure and had to be ht very hard. When I examined it more closely I realised that the keys were catching the metal bar at the front. As the keyboard was mounted at an angle on a wall bracket sloping downwards I concluded that gravity could have caused the keybed to move forward slightly which causes the problem. .

I dont THINK this is the problem as the keys depress with the same pressure as the rest of the keys. They do however depress slightly more than the other keys.

Anyway the shop I bought if from last year said they will take care of it. Im gonna look inside myself tomorrow to see if its anything obvious. Cause the repair could take my beloved kronos away for a couple weeks!

pedro5 · Post by **pedro5** » Sun Sep 01, 2013 1:05 am

My first thoughts were the front bar fouling etc......but because it affects the sharp notes (black keys),I'm not so sure....
It remains a possibility,of course and would be well worth checking the gap,including any dents or distortion in the front bar itself and all around the curvature.

It could be something else inside that's causing the problem and is worthy of taking a look at the internals.
There have been reports of parts becoming loose or dislodged inside,which can be rectified with a simple remedy.

Good Luck.

Please let us know the outcome.

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