Sorry to hear about this, Derek. It's hard for us to determine whether it's the external power supply or something internal without first testing the unit with another power supply. If your SX2 is under one year old it would be covered under warranty. In which case I would direct you to please contact Pioneer DJ technical support in your region for further assistance.
It's unlikely you have spare power supply laying around to conduct the test yourself but if you live near a Pioneer DJ dealer you could take your SX2 there and ask them to test it with another power supply. If not, you could pick up a universal power supply that meets the same exact power specs of the original but be very careful because giving the unit too much or too little juice could permanently damage it.
