... Display, Projection,LCD TV,Rear-Projector directly to achieve super hi-vision, distinct images and ... same as VIDEO IN2.K1: Switching Key, to reset and scan sync signal.3. Installation1. Introduction ... channel signal, 5 BNC in total, plus a switching key K1.V: Field Synchronizing SignalH: ... system will identify automatically. If fail to identify, press K1 to reset.5. Technical Parameters Power: DV12V, ...