I keep aftermarket adapters in stock for refurbished consoles in case this kind of thing happens. The only problem is that they have a power chord that is only about 2 feet long, so you have to plug it in close to the system.
You can buy them on eBay for $2.58 shipped;
http://www.ebay.com/itm/140865743094 ...
...and they take 2-3 weeks if you live in a major city. Or you can buy one from me put together for $8 ($5 + 3p/h) shipped. (this one has been used for about a month so its only about 85% new. I will get it out to you on Monday). I try to keep 5-10 of theses in stock at a time, and will take it down to the Oakland PO (which cuts 1 day off ship time to you).
It will get you back on the road, until you get you supply fixed. Send me a pm if you are interested.
If you want to fix your own power supply, because you want the system to stay original or if you have a sentimental attachment to it, as BlackTiger said, please go to the repair forums... But you said something about "it smelling like burning". I would post a new thread there and ask for the other tech's opinions. I know that a few people have sucessfully repaired them by replacing fuses, soldering, or replacing the big cap inside them. I wish you the best of luck with that.
NOTE: This post was edited per a conversation with chop5, when he reminded me that I would have to add the new $1 plug and switch the polarity if its being used on a PCE Duo.