LG 42LC7D - EXTERNAL CONTROL THROUGH RS-232 C

IR CODES
1. How to Connect
01_Connect your wired remote control to the Remote Control port on the TV.
2. Remote Control IR Codes
0_Output waveform
Single pulse, modulated with 37917KHz signal at 455KHz
Tc
_q
0_Configuration of frame
1st frame
Carrier frequency
FCAR= 1/TC = fOSC/12
Duty ratio = T1/TC = 1/3
Repeat frame
l
0,_Lead code
Repeat code
Tf
[
4
1
F
0_Repeat code
9 ms
9 ms
I
4.5 ms
0.55 ms
L_YI
[
4
-0
-0
r'rl
z
x
0_Bit description
Bit "0"
i !
I o.5oms.I
1.12ms
01_Frame interval: Tf
The waveform is transmitted as long as a key is depressed.
®
I
Tf Tf
2.24 ms
°1
[_ Tf=108ms @455KHz
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