"Canon 60D blueprint/guide on building the chips and motherboard?"に関する回答I dont think you will find one, but I dont think you need it. Where did you pour the cleaner? Did you use electrical contact cleaner, or eye-contact cleaner? If its a little electrical contact cleaner, you will need to do a full dismantle, wipe up, and reassembly.
"Dark Picturtes on Auto Mode"に関する回答There are a bunch of things that can cause this. For instance, if all of the walls are white or there are lights, the camera gets confused, and will think its brighter than it actually is. (Cameras think everything should be a light-grey) It can also be that if you are trying to use a flash, it just cant generate enough light. On-camera flashes usually work best between 10' and 20'. Take some test shots in a more normal environment, and you should have less problems.