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IR OUT Using Guide
Suitable / Not Recommend remote-controller data format
Item
Suitable data format
Not recommend data format
IR Receiver specifications
Carrier frequency
Peak Wavelength
Minimum burst length
Minimum gap time is
required of
Data word length
Minimum gap time in the
data stream is needed of
Parameter Symbol Conditions Min
High Level
Out Pulse
Twh
Burst Wave
Width
= 600 µs
Period =
Low Level
1.2 ms
Out Pulse
Twl
Width
• If not use the remote-controller with data formats
recommended, IR output signals will be suppressed
automatically by IR receiver.
• In this case, LG does not guarantee IR working function.
• To make sure of this matter, here are two methods as below.
- Use the remote-controller with suitable data formats.
- Use the IR dongle receiver of the set-top box.
Formats
NEC, RC5, Toshiba
Continuous data format (short
burst/gap signal)
37.9 KHz
940 nm
Min. 300 us
Min. 350 us
Max. 100 ms
Min. 50 ms
Typ Max Unit
µs
400
-
800
µs
400
-
800
Transmission / Receiving Protocol
(Depending on Model)
Transmission
(Command1)(Command2)( )([Set ID])( )([Data])(Cr)
(Command1) : First command to control the TV. (j, k, m or x)
(Command2) : 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
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