I was one of those techs. RCA conducted a service seminar early in 1970 on the 2000, which I attended. This was supposed to be the future of TV. They handed out a very slick book describing the circuitry, troubleshooting, and theory of operation. Unfortunately, my copy is lost.

We didn't have headaches servicing it, though. The company I worked for (a high volume chain) got ONE. We had it in the shop for a few days studying it. They had trouble selling it due to the high price, and never got another one. I never had to service one, and never saw another one anywhere! You have a very rare piece of TV history.