HP LD4220tm and LD4720tm Digital Signage Touch Displays

03. Aspect Ratio (Command: c) (Main picture format)
To adjust the screen format.
You can also adjust the screen format using the ARC (Aspect Ratio Control) button on remote control
or in the Screen menu.
Transmission
[k][c][][Set ID][][Data][Cr]
[Data] 1: Normal Screen (4:3)
2: Wide Screen (16:9)
4: Zoom [HDMI (HD-DVD), DisplayPort (HD-
DVD)]
6: Original
7: 14:9 [HDMI (HD-DVD), DisplayPort (HD-
DVD)]
9: Just Scan [HDMI (HD-DVD), DisplayPort
(HD-DVD)]
When the RGB, HDMI/DVI-PC, DisplayPort-PC
mode (1:1)
10 to 1F: Cinema Zoom 1 to 16 [HDMI (HD-
DVD), DisplayPort (HD-DVD)]
Acknowledgement
[c][][Set ID][][OK][Data][x]
04. Screen Mute (Command: d)
To select screen mute on/off.
Transmission
[k][d][][Set ID][][Data][Cr]
[Data] 0: Screen mute off (Picture on)
1: Screen mute on (Picture off)
Acknowledgement
[d][][Set ID][][OK][Data][x]
ENWW Transmission/Receiving Protocol 65