I have most RCA training manuals but not this one.
Was this the chassis used in the big CRT sets ? If
so only saw 2 & both had bad FBT's.
CTC175 gives a range of 0-127 for bias
0-63 for drive
Try putting them in the middle & touch up by eye from there.
I think RCA was first with AKB, I remember the seminar a LONG time ago.
Next was Emerson of all people ! Then others but not all followed.
73 Zeno