Aspect Ratio (Command : C) (Main Picture Format); Screen Mute (Command : D) - HP LD4200tm User Manual

8 : HDMI (DTV)
9 : HDMI (PC)
Acknowledgement
[b][ ][Set ID][ ][OK][Data][x]
Data 2 : AV
4 : Component 1
5 : Component 2
7 : RGB (PC)
8 : HDMI (DTV)
9 : HDMI (PC)

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 : Zoom1 (AV)
5 : Zoom2 (AV)
6 : Original (AV)
7 : 14:9 (AV)
9 : Just Scan(HD DTV), 1:1 (RGB PC, HDMI/DVI PC)
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]
48 Appendix C Controlling the Multiple Product ENWW