Hi, this is my first time on this forum so please let me know if I put this in the right area. I've been trying to find a power supply for it and finally did, but the amperage for it is 1.2A and my keyboard requires 850mA. I know that if there is a too much amperage that it can burn the thing out, but would that difference really matter. Thanks for any help that can be given.

 

Welcome to AAC! If the power supply is supplying the proper voltage for your keyboard, then the current rating of the power supply just needs to be at or above the needs of the keyboard. You won't harm the keyboard. However, if the voltage is not the required voltage, you run the risk of damage.

 

and check if it needs to be AC or DC!