LG LW34 Series Manual page 36

Transmission / Receiving Protocol
(Depending on Model)
Transmission
[Command1][Command2][ ][Set ID][ ][Data][Cr]
[Command 1] : First command to control the TV. (j, k, m or x)
[Command 2] : Second command to control the TV.
[Set ID] : You can adjust the set ID to choose desired monitor ID number
in option menu. Adjustment range is 1 to 99. When selecting Set ID
'0' , every connected set is controlled. Set ID is indicated as decimal (1
to 99) on menu and as Hexa decimal (0 x 0 to 0 x 63) on transmission/
receiving protocol.
[Data] : To transmit command data. Transmit 'FF' data to read status of
command.
[Cr] : Carriage Return
ASCII code '0 x 0D'
[ ] : ASCII code 'space (0 x 20)'
OK Acknowledgement
[Command2][ ][Set ID][ ][OK][Data][x]
* The set transmits ACK (acknowledgement) based on this format when
receiving normal data. At this time, if the data is data read mode, it
indicates present status data. If the data is data write mode, it returns
the data of the PC computer.
Error Acknowledgement
[Command2][ ][Set ID][ ][NG][Data][x]
* The set transmits ACK (acknowledgement) based on this format when
receiving abnormal data from non-viable functions or communication
errors.
Data 00 : Illegal Code
4
01. Power (Command: k a)
► To control Power On/Off of the set.
Transmission
[k][a][ ][Set ID][ ][Data][Cr]
Data 00 : Power Off
Ack
[a][ ][Set ID][ ][OK/NG][Data][x]
► To Show TV is Power On/Off.
Transmission
[k][a][ ][Set ID][ ][FF][Cr]
Ack
[a][ ][Set ID][ ][OK/NG][Data][x]
* Similarly, if other functions transmit '0 x FF' data based on this
format, Acknowledgement data feed back presents status about
each function.
* OK Ack., Error Ack. and other message may display on the screen
when TV is power On.
02. Aspect Ratio (Command: k c) (Depending on model)
(Main Picture Size)
► To adjust the screen format. (Main picture format) You can also
adjust the screen format using the Aspect Ratio in the Q.MENU. or
PICTURE menu.
Transmission
[k][c][ ][Set ID][ ][Data][Cr]
(Only LW341H, LW54**)
Data 01 : Normal screen (4:3)
02 : Wide screen (16:9)
04 : Zoom
06 : Original
(Only LW30**, LW31**, LW340*, LW341C)
Data 01 : Normal screen (4:3)
02 : Wide screen (16:9)
* Please make sure that the model doesn't support both Vertical Zoom
and All-Direction Zoom mode.
01 : Power On
07 : 14:9
09 : Just Scan
0B : Full Wide
10 to 1F : Cinema Zoom 1 to 16
06 : Original