Ir Codes - LG 37LB5D Owner's Manual

APPENDIX

IR CODES

1. How to Connect
Connect your wired remote control to the Remote Control port on the TV.
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2. Remote Control IR Codes
Output waveform
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Single pulse, modulated with 37 .917KHz signal at 455KHz
Configuration of frame
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1st frame
Lead code
Repeat frame
Lead code
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Repeat code
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Bit description
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Bit "0"
Frame interval: Tf
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The waveform is transmitted as long as a key is depressed.
100
Tc
T1
Low custom code
C0 C1 C2 C3 C4 C5 C6 C7
Repeat code
9 ms
9 ms
0.56 ms
1.12 ms
Tf
Carrier frequency
FCAR = 1/TC = fOSC/12
Duty ratio = T1/TC = 1/3
High custom code Data code
D0 D1 D2 D3 D4 D5 D6 D7
Tf
4.5 ms
0.55 ms
2.25 ms
Bit "1"
Tf
Data code
0.56 ms
2.24 ms
Tf=108ms @455KHz