Coffee was spilled on my Keyboard and some keys started being sluggish, where they would go up slower than normal when I depressed a key. I checked out several posts and YouTube videos, but none reported the relatively easy way I fixed it.
It's a Yamaha P-200 digital keyboard. I removed 4 screws from the bottom and raised the lid, showing the complete keyboard action. I looked carefully at the back of the keys in question. You can't see this until you raise the lid. And I saw some sticky brown stuff in between the keys, which was making it hard for the keys to go down or up.
I used a credit card to press down at this spot that shows a triangle and an arrow and it released the key. The key doesn't completely come out. the front part of the key is still held in. But you can clearly see the grease and grime from the coffee on the keys.
I used a damp paper towel and the credit card to slide it in between the keys to clean off the coffee and it worked great. No more sticky keys. You just push on the back top of the key to put it back into place.
Here's 2 videos that help locate what I mentioned above
Quick repair for yamaha keyboards/stage pianos with GHE action
https://www.youtube.com/watch?v=tiuasctrzso
2:19 triangle
2:32 remove key
https://www.youtube.com/watch?v=gmqre0rhc48
Repair/replace a sticking white key on YAMAHA P, CLP OR CVPseries keyboard (models c. 2003-2013)
3:05 for triangle
3:40 to release key and pull up
P-200 manual https://www.manualslib.com/manual/1114969/Yamaha-P-200.html?page=10#manual
manualslib dot com
