Dean Markley K-200 amplifier no sound

I recently purchased a Dean Markley K-200 Amp for my acoustic guitar!
When I returned home I turned the amp on and there was no noise coming from the amp?
I plugged in guitar just to confirm that the amp had no output and nothing?
I can work with electronics and was wanting to know if anyone give give me some ideas as to what to look for as I have never worked on a amp?
Thanks Paytonsopa