LG BC775 Owner's Manual page 62

62 Serial Communication Function
01. Power (Command: ka)
⇒ Powers the set on/off.
Transmission
[k][a][][Set ID][][Data][Cr]
Data 00: Power Off
01: Power On
Ack
[a][][Set ID][][OK][Data][x]
Data 00: Power Off
01: Power On
⇒ Shows the power on status.
Transmission (Only working when the
projector is turned on).
Transmission
[k][a][][Set ID][][FF][Cr]
Ack
[a][] [Set ID][][OK][Data][x]
Data 01: Power On
* As with other functions, if data is transmitted
as '0xFF' in the above format, the current status
of each function is returned as a feedback in Ack
data.
02. Aspect Ratio (Command: kc)
⇒ Adjusts the aspect ratio.
Transmission
[k][c][][Set ID][][Data][Cr]
Data 01 : 4:3
02 : 16:9
04: Zoom
06: Set by Program
09 : Original
10 - 1f: Cinema Zoom 1 - 16
Ack
[c][] [Set ID][][OK][Data][x]
Data 01 : 4:3
02 : 16:9
04: Zoom
06: Set by Program
09 : Original
10 - 1f: Cinema Zoom 1 - 16
03. Blank Image (Command: kd)
⇒ Enables/disables the blank image.
Transmission
[k][d][][Set ID][Data][Cr]
Data 00: Disables blank image (picture on)
01: Enables the blank image (picture off).
Ack
[d][][Set ID][][OK][Data][x]
Data 00: Disables blank image (picture on)
01: Enables the blank image (picture off).