I do have to ask.... Why are you bothering doing component-level repairs on a 200w ATX power supply? A new 400w cheap-o one is like $20. In any case, i did find a set of schematics for it, but the values of some components have been left off....probably intentionally to keep other companies from using their schematics.
http://hmin.tripod.com/als/andysm/pages/DR200ATX.html