Hi James,
Thanks again for the schematic, it proved helpful to figure this out. The LM1117 5.0 regulator is indeed burned out, and I have sourced replacements on Ebay. I'm having 2 of them shipped to my country (canada) from China for a total cost of $2.80 including free shipping. Gotta love Ebay when it works like this. (Of course they won't be here for about 3 weeks, but that's fine because I can still use the unit with a computer. Thanks for your help.
Jon