[Ron Ramirez]

Well, I guess this is a judgment call - if you are happy with the receiver as it is, perhaps you should leave it alone. Alignment of a 38-690 is not terribly difficult, but is not a quick and easy 5 minute job, either.

I think I would be more concerned about the capacitors in the set if they have not been replaced, especially the electrolytics. But if you have replaced them already, then your 690 is probably in very good shape as is.