VIDEOTEK-10 VIDEOTEK-12 SWITCHERS
Top switcher is an RS12
Bottom switcher is an RS10
Both switchers are controlled by one MCU CONTROLLER in a plastic box.
A VIDEOTEK RS-10A switcher can be programmed for BCD PARRALLEL LINES. This option is used...
A Videotek switcher can NOT adequately be driven with 5V. Voltage levels for BCD MUST BE 0 TO 12V. Voltage levels rest at zerro volts, and active is plus twelve volts.
SCHEMATIC for BCD
Q3 is PIN K BCD VALUE-08
Q2 is PIN N BCD VALUE-04
Q1 is PIN S BCD VALUE-02
Q0 is PIN V BCD VALUE-01
STROBE PIN X