SAMMY HCL4715W - no L/R convergence adj. on RED & adv. menu Q's

[427Cobraman]

Hey all,

Working on a Samsung RPTV (HD) with no adjustability of RED crt
convergence. Up/Dn works but no Lt/Rt adjustment. This is the case
whether in user convergence menu or advanced convergence menu. All
other colors are fine. Does this sound like the convergence IC? Also,
when using advanced convergence menu, which key saves settings? Thanks,

Alex