Before downloading the following repair guide, please first review this important warning concerning the possibility of SEVERE electrical shock from the camera's flash capacitor, and how to mitigate it:
http://camerarepair.blogspot.com/2007/11/important-warning-camera-flash.html
Also the usual warning of “Follow these procedures at your own risk. These procedures should only be considered as a last resort on a broken camera with an expired warranty. I take no responsibility should you damage your camera in following these steps. Also note that there is some danger of electrical shock from the camera's flash capacitor. I also take no responsibility if you zap yourself while following these procedures.” Here's the repair guide download link:
Mode Dial Repair.pdf (from skydrive)