LG M3800S - Manual (Page 28)

Controlling the Multiple Product
RS-232C
A5
Transmission / Receiving Protocol
03. Brightness(Command : m)
To adjust screen brightness.
You can also adjust the brightness in the Picture menu.
Transmission
[j][Set ID][m][Data][Cr]
Data(ASCII) Min : 000 ~ Max : 100
Acknowledgement
[OK]
04. Contrast(Command : n)
To adjust screen contrast.
You can also adjust the contrast in the Picture menu.
Transmission
[j][Set ID][n][Data][Cr]
Data(ASCII) Min : 000 ~ Max : 100
Acknowledgement
[OK]
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