Hey, I am the owner of Kawai RX-2H from 2012. I purchased it a year ago and all have been great until today.
I have discovered blue and pink little dots on some keys, two of them are extremely noticeable.Please click on each photo to enlarge it and then download high resolution.
1. Look at the C key, you will notice 3 pink dots next to each other and 4th is a bit lower:
2. Here key E will have 2 pink dots next to each other, key G has blue point in the middle of the key (that one is very noticeable) and key A has 2 pink dots:
3. Here key F has 1 pink dot in the bottom-right corner:
4. And finally the biggest boss of all dots, key G has extremely visible pink dot:
I have no kids in the house, so it's impossible that someone drew those dots. Last time I played was Saturday and I did not notice anything. This morning I sat to the grand piano and I immediately noticed key G with the pink dot.
It looks like it comes from the bottom of the key, so not from the upper surface. You cannot feel it with your finger at all, I tried to wash it off using water, then a bit of alcohol based cleaning agent. Nothing works at all.
Does anyone know if maybe there's a glue between wood and plastic that is coloring the keys? Keys have no direct contact with sunlight.