Yamaha PSR SX900 system bug found.
My SX900 is running the latest firmware which is v1.11
This weird problem only occurred on this particular registration memory as below, simply copy to the USB drive and open it.
https://drive.google.com/file/d/1I1QL...
I have set right 3 split point with harmony in my registration.
To trigger this bug, simply play multiple keys simultaneously on the split key for a while like what I did in the Video.
The error code as below:
tsfcbdfboo
L408