Will a 16v 1000Ma power supply work with a 9v 850Ma power supply for an electronic keyboard?
I have a keyboard that requires a 9v 850 Ma power supply. I do not have one except for a 16v 1000 Ma power supply from another electronic device. Will this work? I thought you can’t go lower, but you can go higher in power? Please help.
The 16 V power supply will damage your keyboard. The voltage must be the same. The mA can be the same or more but the voltage must be the same.

For about 3 seconds.
References :
The 16 V power supply will damage your keyboard. The voltage must be the same. The mA can be the same or more but the voltage must be the same.
References :