After following this thread for many years, I decided to do my part and save a Pioneer Elite Pro-700HD from the landfill. I took a chance and bought it sight unseen for $100 delivered. Unfortunately but not unexpected, it has some problems. It looks like it has some screen burn in on the lower corners and the convergence is off. I didn’t realize before buying that this model only had the 9 point user convergence adjustments and very antiquated service menu adjustments. I’ve been studying the service manual and I believe I have figured out the convergence adjustment puzzle (Static,Skew,Bow,Size,Mid Size,etc…) but I can’t get the grid to line up at the corners. No adjustment made will fix the curvature at the corners. Does it look like my convergence chips have gone bad? Any help would be very appreciated!
Similar issues with my Pioneer set...........I was able to tinker with the service menu and get all the overscan out however I had grid issues at the corners as well.
Shimming is the only way to correct this, then you can back off the adjustments on your service menu which will correct your geometry grid issues.
The shims will help get rid of your overscan and you would only have to adjust your set slightly in the service menu basically.
Haven't done it to mine although have read up on it extensively and even checked it out with some spare parts I bought for the Pioneer.
To me the shimming isn't worth the trouble, no one will notice the slight geometry grid issues but you..............................