LG M4210LC Owner's Manual page 51

RS-232C
Transmission / Receiving Protocol
18. Auto Configure(Command: j u)
To adjust picture position and minimize image shaking
automatically. it works only in RGB(PC) mode.
Transmission
[j][u][ ][Set ID][ ][Data][Cr]
Data 1 : To set
Acknowledgement
[u][ ][Set ID][ ][OK][Data][x]
19. Key(Command : m c)
To send IR remote key code.
Transmission
[m][c][ ][Set ID][ ][Data][Cr]
Data Key code : Refer to page A 34.
Acknowledgement
[c][ ][Set ID][ ][OK][Data][x]
Controlling the Multiple Product
A13