HP LD4210 42-inch LCD Digital Signage Display - Manual (Page 79)

[Data] 0: Normal (Power on and signal exist)
1: No signal (Power on)
2: Turn the display off by remote control
3: Turn the display off by sleep time function
4: Turn the display off by RS-232-C function
8: Turn the display off by off time function
9: Turn the display off by auto off function
17. ISM Method (Command: j p)
Used to select the afterimage preventing function.
Transmission
[j][p][][Set ID][][Data][Cr]
[Data] 1H: Inversion
2H: Orbiter
4H: White Wash
8H: Normal
Acknowledgement
[p][][Set ID][][OK][Data][x]
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
ENWW Transmission/Receiving Protocol 71