The color control logic circuit 53 accepts color control logic signals at its inputs R , Y , G , BG , B , P , and W and develops at {TAIL ~ its outputs} drive signals for red bus 5, green bus 6, and blue bus 7, respectively, to illuminate {HEAD ~ display element} 43 in a selected color 
The color control logic circuit 53 accepts color control logic signals at its inputs R , Y , G , BG , B , P , and W and develops at { TAIL ~ its outputs } drive signals for red bus 5 , green bus 6 , and blue bus 7 , respectively , to illuminate { HEAD ~ display element } 43 in a selected color
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH