LG Electronics BX220-JD Power Command2a, Input Select Command2b, Aspect Ratio Command2c

RS-232C

External control device setup

01. Power (Command2:a)

➜To control Power On/Off of the Projector.

Transmission

[k] [a] [ ] [Set ID] [ ] [Data] [Cr]

Data 0 : Power Off

1 : Power On

Ack

[a] [ ] [Set ID] [ ] [OK] [Data] [x]

Data 0 : Power Off

1: Power On

➜To show Power On/Off status.

Transmission

[k] [a] [ ] [Set ID] [ ] [FF] [Cr]

Ack

[a] [ ] [Set ID] [ ] [OK] [Data] [x]

Data 0 : Power Off

1: Power On

*In like manner, if other functions transmit ‘0xFF’ data based on this format, Acknowledgement data feed back presents status about each function.

02. Input Select (Command2:b)

➜To select input source for the Set.

Transmission

[k] [b] [ ] [Set ID] [ ] [Data] [Cr]
Data	2	: Video	3	: S-Video	4	: Component
	6	: RGB-DTV	7	: RGB-PC	8	: DVI-DTV
	9	: DVI-PC
Ack
[b] [	] [Set ID] [ ] [OK] [Data] [x]
Data	2	: Video	3	: S-Video	4	: Component
	7	: RGB-PC	9	: DVI-PC

*The transmission data for RGB-DTV(Data:6) input select is changed to RGB-PC(Data:7) for the identical mode processing. In like manner, the data of transmission for DVI-DTV(Data:8) input select is changed to DVI-PC(Data:9).Therefore,if you send command to select RGB-DTV or DVI-DTV source,you will recieve changed data in the Ack message.

03. Aspect Ratio (Command2:c)

➜To adjust the screen format.

Transmission

[k] [c] [ ] [Set ID] [ ] [Data] [Cr]

Data 1 : Normal Screen( 4:3)

2 : Wide Screen(16:9)

Ack

[c] [ ] [Set ID] [ ] [OK] [Data] [x]

Data 1 : Normal Screen( 4:3)

2: Wide Screen(16:9)

04.Screen Mute (Command2:d)

➜To select screen mute on/off.

Transmission

[k] [d] [ ] [Set ID] [ ] [Data] [Cr]

Data	0	: Screen Mute Off (Picture On)
	1	: Screen Mute On (Picture Off)
Ack
[d] [	] [Set ID] [ ] [OK] [Data] [x]
Data	0	: Screen Mute Off (Picture On)

1: Screen Mute On (Picture Off)

05.Contrast (Command2:g)

➜To adjust screen contrast.

Transmission

[k] [g] [ ] [Set ID] [ ] [Data] [Cr]

Data	Min : 0 ~ Max : 64
* Refer to ‘Real data mapping 1’.
Ack
[g] [	] [Set ID] [ ] [OK] [Data] [x]
Data	Min : 0 ~ Max : 64

* Real data mapping 1		* Real data mapping 2
0	: Step 0	0 : Step -50
A	: Step 10	32 : Step 0
F	: Step 15
10	: Step 16	64 : Step 50
64	: Step 100

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