Just FYI the checklist has a V63, not V68 there.The mission is apolllo 11. And the manual lock on is called for during a rr self test shortly after undocking. The sequence in the checklist is
V68e
Pro
F04 12
Rr manual lock on
This is what caused the confusion as the lock on process isn't explained
+Z facing the CSMShortly after undocking and after the visual inspection, LM +X should be facing the CSM and be 'upside down'. Manually slew the RR to PY 0,0 and you should get a good signal strength. At this point, you can switch to AUTO TRACK and it should lock.