I will remove this posting once it's sold. Please read the entire listing, and contact me when you want to meet up.
For sale is a used Casio LK-S250 Casiotone Lighted 61 Key Digital Keyboard FOR PARTS.
Retails for $199. I'm selling it cheap because the A2 through A3 keys do not register when pressed, but all of the other keys do. All of the keys including A2-A3 light up when playing the preset songs, and the rest of the keyboard seems fully functional.
This could be an easy fix such as cleaning debris from the contacts, adjusting a loose ribbon, soldering degraded contacts, or possibly replacing the key contact board. PLEASE ASSUME THE WORST. You can also transpose the octaves in the settings to bypass the used keys.
This could also be used as a parts keyboard for another broken Casiotone because parts are discontinued and expensive.
I did not want to spend the time trying to fix it, ended up purchasing another fully functional keyboard, and no longer need this. Sold as-is.
I'm in SOMA SF M-F 8:30am-4pm, and Millbrae any other time.