Trying to get picture close to being centered. Focus coil, ion magnet.

th control, horiz linearity. NOt having much luck yet gettting piccture to move to the right.
Messing with this quite a bit getting it to center and shrink. Controls were messed with quite a bit. Width was all the way in and hor. lin. was most of the way out. Im wondering if messing with the power resistors ohms would help me get more adjustment.