LG M5203CCBA Owners Manual - Page 73
IR Codes
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RS-232C IR Codes L L L How to connect Connect your wired remote control to Remote Control port on the Product. Remote Control IR Code Output waveform single pulse, modulated with 37.917kHz signal at 455kHz Tc Carrier frequency FCAR = 1 / Tc = fosc / 12 T1 Duty ratio = T1 / Tc = 1 / 3 Configuration of frame • 1st frame Lead code Low custom code High custom code Data code Data code C0 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 frame Repeat code Tf Lead code 9 ms Repeat code 4.5 ms 0.55ms 9 ms Bit description • Bit "0" 0.56 ms 2.25 ms • Bit "1" 0.56 ms 1.12 ms Frame interval : Tf • The waveform is transmitted as long as a key is depressed. Tf Tf 2.24 ms L L L L Tf = 108 ms @ 455 kHz A33