On the subject of XA repairs, maybe this has been posted a million times before, but anyway, here is a link to a free XA repair manual, in case anyone stumbles across this and says, "Oh, I need to fix mine, too.":


scroll down to Olympus XA, and note the login instructions at the top of the page. A wealth of other repair manuals are there, also (including Rolleiflex TLR, Yashica TLR, and many others).