http://books.google.com/books/about/...d=o6pn1Pdas1UC
Not a step by step hot to repair tvs for dummies but rather a study of basic electronics. From this you can begin to understand how different circuits work.
After that you can learn how to diagnose a problem and fix the broken part rather than just a shot gun recap and keep your fingers crossed.
While you may get lucky and fix a lot with that approach, you are only getting a fraction of the fun, the real fun is solving a tough dog.