Rhodes Chroma Polaris

I just recieved my Chroma Polaris this week. The headphone jack is 
quite noisy and when I do a number of functions, there is this sound 
that comes out. The headphone jack noise is not just hiss but sort of 
pitched. Imagine a 60 cycle hum tuned up a whole lot. That is the best 
way I can explain the noise. And the sound that is produced when I do 
certain functions is sort of like "ditditditdit"; almost like the 
computer is processing and you can actually hear it. The output jacks 
do not work at all which I know is not normal. All of the buttons and 
sliders work fine. Does anybody have any ideas about the strange sounds 
from my machine? It was supposedly checked out and working with no 
problems. Perhaps it was damaged by UPS? There is no physical damage to 
the outside of the machine but that would have been almost impossible 
as it was shipped in a flight case. Any input would be helpful.

Thanks, Chris