LG M3204CCBA Owner's Manual page 87

RS-232C
Transmission / Receiving Protocol
49. S/W Version (Command : f z)
► Check the software version.
Transmission
[f][z][][Set ID][][Data][Cr]
Data FFH : Read
Acknowledgement
[z][][Set ID][][OK/NG][Data][x]
50. Input Select (Command : x b)
► To select input source for the Set.
Transmission
[x][b][][Set ID][][Data][Cr]
Data 20H : AV
40H : Component
60H : RGB (PC)
90H : HDMI/DVI (DTV)
A0H : HDMI/DVI (PC)
Acknowledgement
[b][ ][Set ID][ ][OK][Data][x]
Data 20H : AV
40H : Component
60H : RGB (PC)
90H : HDMI/DVI (DTV)
A0H : HDMI/DVI (PC)
Controlling the Multiple Product
A30