... panel: input interface of No.1 channel signal, 5 BNC in total, plus a switching key K1.V: Field ... Signal)three signals, connect R,G,B these three BNC, one-one correspondence.When the signal source is RGBS ... sync), connect H/CS,R,G,B these four BNC,one-one correspondence.When the signal source is RGBHV( ... sync)connect V,H,R,G,B these five BNC,one-one correspondence. Top Panel: signal input interface ...