I got my Digital Rebel XT back from the Canon service center this weekend. While I haven't had the chance to really test it out, the service performed on it is listed as "Replace TFT LCD Ass'y/Back FPC Ass'y/Main PCB Ass'y. Cleaned and quality checked all features & functions."
The replacement of the LCD is a surprise to me. I have no idea exactly what the "Back FPC" or "Main PCB" is, but as long as it is fixed, I don't really care.