(New Holland, Pa. USA)
The Yamaha PSR 740 Keyboard sometimes stops while playing a recorded disc. Also, in the middle of a performance using a prerecorded disc it switched from
the song being done to the no. 1 song on the disc.
The keyboard sits on an X stand and is played along
with the back-up music. The malfunction of the keyboard
doesn't seem to happen when it is playing a disc if the keyboard is not being played at the same time. I feel the problem might be too much vibration from insufficient support of the keyboard or that it might need to be serviced.