Toshiba PB 6643 geometry issue

[mukurop]

I have already fixed 3 x toshiba PB 6643 chassis from Konami windy, they all were dead or blowing the hot after two seconds, by the way now I got a geometry issue on all chassis. basically there is a H.linearity error. At this point it could be a yoke iissue. Here is some photos, no linearity or s correction on those chassis.

IThose photos where made before convergence and colors setting now I have tested them for hours and now colors and white balance successfully done, the picture quality appear on par with nanao MS9 eccept this geometry issue.. Any advices?

[grantspain]

unlikely all three chassis would have same problem unless there is a particular component replaced on all three that is not quite to spec
is the tube the correct original type?

[mukurop]

And yes the tube is the original one, although when i disassembled it from the cabinet i couldn't know if it had this problem or not because i didn't have a working chassis. I had to disassemble and reassemble it with a metal frame since there is no frame on the cabinet, this to be able to test it on the workbench ...


I can try to replace the polyester capacitors on the HOT and in particular the one that is connected or disconnected from the WIDE / Narrow selector wich apper to not doing absolutely nothing...As an extreme, more radical solution I could change the deflections yoke with an MS9 nanao. The tube is a Toshiba A68 and has no burn with all three guns at 100%!

[grantspain]

is that a neo geo test screen?

[mukurop]

Yes it is

[grantspain]

does it look good on a different game board or the same?