... CRT Display, Projection,LCD TV,Rear-Projector directly to achieve super hi-vision, distinct images and steady ... , the same as VIDEO IN2. K1: Switching Key, to reset and scan sync signal. InputSignalsMDA,CGA,EGA,RGB ... signal, 5 BNC in total, plus a switching key K1. V: Field Synchronizing Signal H: HSync, ... Blue Signal, blue Sync Signal K1: Synchro Resetting Key Channel Interface Illustration, V H R G B ...