LG Electronics DU-30LZ30, DU-42LZ30 owner manual How to Connect, Remote Control IR Codes

IR Codes

IR Codes

How to Connect

GConnect your wired remote control to the Remote Control port on the TV.

Remote Control IR Codes

GOutput waveform

Single pulse, modulated with 37.917KHz signal at 455KHz

TC

T1

GConfiguration of frame

•1st frame

Carrier frequency

FCAR = 1/TC = fOSC/12 Duty ratio = T1/TC = 1/3

Lead code

Low	High
		Data code	Data code
custom code	custom 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

GLead code

9 ms

GRepeat code

9 ms

GBit description

• Bit “0”

0.56 ms

1.12 ms

GFrame interval : Tf

4.5 ms

0.55 ms

2.25 ms

• Bit “1”

0.56 ms

2.24 ms

The waveform is transmitted as long as a key is depressed.

Tf

Tf

Tf=108ms @455KHz

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