LG 42LC2D - Manual (Page 60)

60
Reference
G Connect your wired remote control to the Remote Control port on the TV.
G Output waveform
Single pulse, modulated with 37.917KHz signal at 455KHz
G Configuration of frame
G Repeat code
G Lead code
• 1st frame
Low
custom code Lead
code High
custom code
Data code Data code
T C
T f
T1
C0
Carrier frequency
F CAR = 1/T C = f OSC /12
Duty ratio = T1/T C = 1/3
• Repeat frame
C1 C2 C3 C4 C5 C6 C7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
Repeat code
9 ms 4.5 ms
0.55 ms
9 ms
2.25 ms
G Bit description
G Frame interval : Tf
The waveform is transmitted as long as a key is depressed.
• Bit “0”
Tf Tf
Tf=108ms @455KHz
0.56 ms 0.56 ms
1.12 ms
• Bit “1”
2.24 ms
IR Codes IR Codes
How to Connect
Remote Control IR Codes