Source: https://www.reddit.com/r/crtgaming/comments/16fidlt/need_help_getting_to_the_sam_service_menu_on_my/
Usually it is 0-6-2-5-9-6 + Status/Exit/OSD to access the SAM/Service Alignment Mode, as listed in the service manual, not + Menu as you said which accesses SDM/Service Default Mode. Additionally you don't want CSM/Customer Service Mode.
picture offsets:
VSH 25 -> 45
HSH 34 -> 56
picture size:
VAM 41 -> 35
EWW 44 -> 42
more:
VSL 32
SBL 0
EWP 28
EWT 28 -> 14
EWC 23
H60 10
V60 5
VSC 17