LG M3204C Owner's Manual page 60

RS-232C
Transmission / Receiving Protocol
05. Volume Mute(Command : e)
► To control On/Off of the Volume Mute.
Transmission
[k][e][ ][Set ID][ ][Data][Cr]
Data 0 : Volume Mute On (Volume Off)
1 : Volume Mute Off (Volume On)
Acknowledgement
[e][ ][Set ID][ ][OK][Data][x]
Data 0 : Volume Mute On (Volume Off)
1 : Volume Mute Off (Volume On)
06. Volume Control(Command : f)
► To adjust Volume
Transmission
[k][f][ ][Set ID][ ][Data][Cr]
Data Min : 00H to Max : 64H
(Hexadecimal code)
Acknowledgement
[f][ ][Set ID][ ][OK][Data][x]
Data Min : 00H to Max : 64H
* Real Data Mapping
0 : STEP 0
:
A : STEP 10
:
F : STEP 15
10 : STEP 16
:
64 : STEP 100
Controlling Multiple Set
A7
A7