ok, reverted to 0.75 but still no image.
So I connected a bootleg popeye board and the picture comes up. The bootleg lcd info is AV1:RGBS 513i 15.60kHz 60.84Hz VMod:480i LO:513 VSM:0
The original does show a good image on my old 1084 Amiga monitor.
I am hoping I can make some changes to the 480i advanced timing menu but not sure what to change and in what order. Can anyone give me some pointers?
I do have a scope and moderate electronics skills if I need to look more closely at the sync signal.