Becketts Music Ltd posted an answer for this Casio Ctk574 61 Key FullSize Portable Keyboard Cat No Ctk574 Electronic Keyboard:
"First of all ensure you are using the correct power adaptor and that it is providing the..."
Becketts Music Ltd posted an answer for this Yamaha MODUS F01 Slimline Contemporary Digital Piano - Polished Ebony COMPLETE HOME BUNDLE:
"No reason why only one note would sustain. Try a factory reset Hold down the highest key..."
30,727 people helped