FIG 7 shows the white, red, blue and black signal levels in {HEAD ~ the video signal} 15 in {TAIL ~ the stated order} from left to right 
FIG 7 shows the white , red , blue and black signal levels in { HEAD ~ the video signal } 15 in { TAIL ~ the stated order } from left to right
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH