LG Electronics 19/22/26/32LD34, 26/32LD33 Communication Parameters, 151, Command Reference List

Communication Parameters

■Baud rate : 9600 bps (UART)

■Data length : 8 bits

■Parity : None

■Stop bit : 1 bit

■Communication code : ASCII code

■Use a crossed (reverse) cable.

Transmission / Receiving Protocol

Transmission

Command Reference List

	COMMAND	COMMAND	DATA
	1	2	(Hexadecimal)
01. Power	k	a	00 to 01
02. Aspect Ratio	k	c	Refer to p. 152
03. Screen Mute	k	d	Refer to p. 152
04. Volume Mute	k	e	00 to 01
05. Volume Control	k	f	00 to 64
06. Contrast	k	g	00 to 64
07. Brightness	k	h	00 to 64
08. Colour	k	i	00 to 64
09. Tint	k	j	00 to 64
10. Sharpness	k	k	00 to 64
11. OSD Select	k	l	00 to 01
12. Remote control lock mode	k	m	00 to 01
13. Treble	k	r	00 to 64
14. Bass	k	s	00 to 64
15. Balance	k	t	00 to 64
16. Colour Temperature	x	u	00 to 64
17. Energy Saving	j	q	00 to 05
18. Auto Configuration	j	u	01
19. Tune Command	m	a	Refer to p. 154
20. Programme Add/Skip	m	b	00 to 1
21. Key	m	c	Key Code
22. Control Back Light	m	g	00 to 64
23. Input select (Main)	x	b	Refer to p. 155

*Note : During USB operations such as DivX or EMF, all commands except Power(ka) and Key(mc) are not exe- cuted and treated as NG.

[Command1][Command2][ ][Set ID][ ][Data][Cr]

*[Command 1] : First command to control the TV. (j, k, m or x)

*[Command 2] : Second command to control the TV.

*	[Set ID]	: You can adjust the set ID to choose
		desired monitor ID number in option
		menu. Adjustment range is 1 to 99.
		When selecting Set ID ‘0’, every con-
		nected set is controlled.
		Set ID is indicated as decimal (1 to 99)
		on menu and as Hexa decimal (0x0 to
		0x63) on transmission/receiving proto-
		col.
* [DATA]		: To transmit command data.
		Transmit ‘FF’ data to read status of com-
		mand.
*	[Cr]	: Carriage Return
		ASCII code ‘0x0D’
*	[ ]	: ASCII code ‘space (0x20)’

OK Acknowledgement

[Command2][ ][Set ID][ ][OK][Data][x]

*The set transmits ACK (acknowledgement) based on this format when receiving normal data. At this time, if the data is data read mode, it indicates present status data. If the data is data write mode, it returns the data of the PC computer.

Error Acknowledgement

[Command2][ ][Set ID][ ][NG][Data][x]

*The set transmits ACK (acknowledgement) based on this format when receiving abnormal data from non-viable functions or communication errors.

Data 00: Illegal Code

APPENDIX

151

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