If the door has the label in it, that's really all you'll need.
(I don't have a manual for mine either)
I've never had to really use the Rejuve selections, remove shorts usually does the job.
Number one thing is when setting the gun balance is to let the tube warm up until the meter stops drifting.
BIAS generally gets left on Norm.
Automatic Tracking - never have figured that part out.
If you need any specific question answered I can try to, I just gotta remember to check back as I'm not on a whole lot right now.
Great little units.... not enough love around here for the Sencores.