Scan Board PCB-00430C

The PCB-00430C is a 16-bit scan board controlling 32x32 pixels (wxh). During normal operation, each scan board in the Panel is fed with data from a data bus, which either runs horizontally across the screen in rows, or vertically up the screen in columns. The row, receiver board drives the data bus.
Data passes from scan baord to scan board, at TTL level entering each board vai 20-pin 'INPUT' connector and the nbegin passed on to the next scan board vai 20-pin 'OUTPUT' connector.