Looking for technical information online

[Michael J. Sch�lke <mjschuelke@hotmail.com>]

Where can I find hardware information on the Apple II (in its various 
incarnations -- II+ and IIe would be especially interesting ATM) online? 
The more technical and the more exhaustive, the better. 

Currently, I'm looking mostly for repair related information, as there 
is a dead II+ sitting on my desk. I've already found the Red Book, and 
while it contains all the schematics, it doesn't have the circuit theory 
backing them -- descriptions of how the circuits work, which signals are 
to be expected at which points, etc. Of course, I could work all of 
these out on my own, but that takes time -- a lot of time. 

So, can you help me? The web searches I tried before always drowned me 
in superficial results.

Regards, 
Michael