Re: Replacing a cap in my son's Casio keyboard

Thanks for the quick reply.

He knows now to make sure the voltage matches lol.

Hi all,

I know almost nothing about capacitors... or for that matter about electronics in general, so please be kind.

The other day my son connected his brother's 9V Casio keyboard to a 24V power source. He played one note and it went BANG! and a little puff of smoke came out.

I took it apart and found one of the caps on the circuit board had exploded. From the shreds of the plastic wrapper I managed to see that it was a Samxon GS(M), had a capacitance of 220 uF and a temperature of 85°. I can't see what the voltage was though. The other caps...