have you tried to power it up? i would use the ac adapter. if it powers up open it up and take a look at the heads to see if it is clear of debris, sand, grit etc.
if it doesnt power on, as i would suspenct it wouldnt, you may still be able to have pro-digital repair it, but it may cost the same as getting another used one of this board or ebay.
good luck, let us know how it turns out