TechnoSomnia

I just got an MT-70 sold to me as working. However, the keys in the left side make no sound and just show the key on the digital display instead when pressed (normal?). And, the volume only works when just right, otherwise the sound is way too faint. If you're still looking for one to Frankenstein yours and mine sounds functional enough, you're welcome to get in touch. I don't know anything about these things and came across your post hoping to find an easy solution to mine's issues (no dice), and would like to see this go to somebody who can make it work. I didn't pay much for it and would pass it along for the same cost.