Casio ctk651 Keyboard - Turns off abruptly after a few seconds

by Darryl
(Brusly, LA)

I have a Casio CTK 651 keyboard and it seems to be abruptly switching-off after some time.

When I turn on the ctk651, it stays on for a few seconds and then turns off automatically.

Any suggestions as to what could be the problem.

- Darryl