LG M4225C Owner's Manual page 82

RS-232C
Transmission / Receiving Protocol
43. DPM Select (Command : f j)
Set the DPM (Display Power Management) function.
Transmission
Data 0 : Off
1: On
Acknowledgement
44. Reset (Command : f k)
Execute the Picture, Screen and Factory Reset functions.
Transmission
Data
0 : Picture Reset
1 : Screen Reset
2 : Factory Reset
Acknowledgement
Controlling the Multiple Product
A27