This might have been covered before but the amount of posts concerning Pioneer convergence is daunting.
I have a Pioneer Pro720HD and just recently I noticed that red element has been moving while I watch it. It shifts off to the right perhaps a quarter to a half inch and then back. You can see the same event with the red lettering in the convergence setup. I would like to fix it myself if possible. Also if there are other steps I could take myself to improve the picture quality (it hasn't been serviced in eleven years since I bought it) feel free to point me in the right direction. Thanks in advance.