A couple of interesting takeaways: - Pre-LED Jumbotrons used CRT pixels called "Trinilite" elements. This was a proprietary Sony technology where each sub-pixe

A couple of interesting takeaways: - Pre-LED Jumbotrons used CRT pixels called "Trinilite" elements. This was a proprietary Sony technology where each sub-pixel or "cell" was a miniaturized CRT assembly. Each resolved one pixel each. - A "maximum" NTSC configuration consisting of 40 units wide would result in a horizontal resolution of just 640 dots. - The display needed a calibration using a “Screen Alignment Unit” (the JME-SA200). This unit used a remote modem chain involving a "cellular phone" and "digital data card." This means that Jumbotron techs could dial in over 1998-era mobile networks to geometrically align a stadium-sized wall of vacuum tubes as they sat in the middle of said stadium. I also found the format of the manual interesting, because it follows the same style of consumer-grade Sony devices from that period.