The Kurzweil K2000 maybe the best keyboard I ever found at a thrift store. Besides battery corrosion which was easily cleaned up it was in perfect working order. Though it did develop an issue with note velocity with one of its keys. I knew about this issue for a while but I looked up the fix and it looked intense to fix it, as it requires removing the keyboard and taking its keys off(not true read more to find out). I just didn’t have the time for it until now.
Teardown is easy, just some screws on the back and it comes off. There are a few different screws as the outer ones are longer. Once inside all I have to do is remove the ribbon cables and then unscrew the key bed from the keyboard.
Seeing how well-built this keyboard is and how it works is definitely explains how great this keyboard feels to play. Removing, the keys were pretty easy, first, you have to remove the spring which I use a pair of needle nose pliers. Then while the key is in the down position stick a screwdriver in the hole and push the key away from the bed. Then it pops up. Took me a few tries, but it was easy once I got a hand in it.
But once I got them off I realized that I was unable to get to the actual contacts key. To get to that I needed to go on the other side and unscrewed the main boards. I was slightly annoyed as I didn’t really need to take all the keys to fix this issue but it did need the cleaning.
Fortunately don’t have a photo of this part. Once I got the board off I took off a part of the rubber membrane where I believe the key was not working. Sure enough, I found a piece of hair between the contacts. I removed it and started putting it back together. No need to take off the other membranes as I know they are working correctly.
Update: This Keyboard unfortunately, doesn’t work anymore the Effects processor has died in it. After some research, I found out This is a common issue with one of these keyboards. Its too bad as I have other updates I have. Such as installing a BlueSCSI emulator. Sadly there wasn’t much I would do, as it would require finding a chip that’s hard to find or a new mainboard. I believe the cause of death was it overheated when I forgot to turn it off one night.