Ir Codes - LG 4250DC - - 42" LCD TV Technical Manual

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
L Tc
I-
0_ Configuration of frame
1 st frame
Low custom code
Carrier frequency
FCAR = 1/TC = fOSC/12
Duty ratio = T1/TC = 1/3
High custom code
Data code Data code
Repeat frame
I
0_Lead code
m
Repeat code
Tf
I
4
J
F
0_ Repeat code
I
9 ms
9 ms
L
4.5 ms
0.55 ms
L_J-I
J
4
-0
-0
m
z
x
0_ Bit description
Bit "0"
I I
i O.56ms ]
-I
1.12ms
01_ Frame interval: Tf
The waveform is transmitted as long as a key is depressed.
I
Tf Tf
4'
r-ll
2.24 ms
"1
[-11 T,=,O_ms _.SS..z
105