When you bought your HTC Wizard, it probably came with a printed manual or a manual in PDF format on CD. That manual is a good thing to have (in fact, a lot of people will find answers to their questions in the manual), but it is just a basic user manual.

In this topic on the XDA Developers Forum, I found a service manual for the HTC Wizard. A service manual is the manual that describes procedures for disassembly and assembly of the HTC Wizard, and describes diagnostic procedures for service centers.

The manual contains a lot of useful information. Other information in the manual is nice to read, but unuseable unless you manage to aquire special Mini SD Cards loaded with diagnostic software provided by HTC. Nevertheless, it is nice to be able to read which dianoses will be performed if you need to leave your HTC Wizard at a service center for repair. And if you ever happen to drop your HTC Wizard in the water, it is good to know how to disassemble your HTC Wizard so you can dry it.

Members of the HTC Wizard Web can download the service manual using the link below.