My son and I got the Sanyo Betacord VCR4020 back together, new belts and head cleaning. The vcr works fairly well. The coarse tracking control is a little touchy, but not too bad. We tried different old beta tapes from the mid-eighties, some played better than others depending on prior usage.
I had to re-clean the head after it picked up some dirt from one tape, Star Wars
. One barely used tape of Gallagher the comedian played back the best.