LG 42LH90QR Owner's Manual page 125

2 2 0 0 . . C C h h a a n n n n e e l l T T u u n n i i n n g g ( ( C C o o m m m m a a n n d d : : m m a a ) )
Tune Channel to following Physical/major/minor number
Transmission [m][a][ ][Set ID][ ][Data0][ ][Data1]
[ ][Data2][Cr]
Data 0: Physical Channel Number(Transmit by Hexadecimal
code)
NTSC air: 02~45
NTSC cable: 01, 0e~7d
Data1, Data2: Major Channel Number(two part) or Channel
Number(one part)
Data1: High byte
Data2: Low byte
Two part channel number: Major number-Minor number
One part channel number:
In case of using one part channel number, minor chan-
nel does not need.
Data3, Data4: Minor Channel Number
Not needed for NTSC.
Data3: High byte
Data4: Low byte
Data5:
Attribute
Main/Sub Two/One
7 6
Part Channel
Picture
0 Main 0 Two
1 Sub 1 One
* * T T w w o o / / O O n n e e p p a a r r t t C C h h a a n n n n e e l l : : 6 6 t t h h b b i i t t
This bit is used in a cable-ready system.
* * U U s s i i n n g g p p h h y y s s i i c c a a l l c c h h a a n n n n e e l l : : 5 5 t t h h b b i i t t
If the channel band is NTSC air or NTSC cable, channel tuning
can be done by only physical channel. In this case, using physical
channel bit must be low(0).
2 2 1 1 . . C C h h a a n n n n e e l l A A d d d d / / D D e e l l ( ( C C o o m m m m a a n n d d : : m m b b ) )
To add and delete the channels.
Transmission [m][b][ ][Set ID][ ][Data][Cr]
Data 00 : Channel Delete
Acknowledgement [b][ ][Set ID][ ][OK/NG][Data][x]
2 2 2 2 . . K K e e y y ( ( C C o o m m m m a a n n d d : : m m c c ) )
To send IR remote key code.
Transmission [m][c][ ][Set ID][ ][Data][Cr]
Data: Key code - Refer to page 1 19.
Acknowledgement [c][ ][Set ID][ ][
Example)
1. Analog channel: NTSC cable, channel number(35), main pic-
Using Physical
4 3
5
Channel Reserved
x 0
0 Use
x 0
1 No Use
01 : Channel Add
OK/NG ][Data][x]
ture
Command: ma 00 23 xx xx xx xx 01
attribute(0x01): main picture, two part(it's not mandatory),
using physical channel, NTSC cabl xx' data: don't care major
and minor channel number in case analog channel tuning
Acknowledgement[a][ ][Set ID][][OK][Data0][Data1]
[Data2][Data3][Data4][Data5][x][a][ ][Set ID]
[ ][NG][Data0][x]
2 1 0
0 0 0
0 0
1
2 2 3 3 . . I I n n p p u u t t S S e e l l e e c c t t ( ( C C o o m m m m a a n n d d : : x x b b ) )
To select input source for TV.
Transmission [x][b][ ][Set ID][ ][Data][Cr]
Data 10: TV
Data 20: AV/AV1
Data 40: Component/Component1
Data 41: Component 2
Data 60: RGB-PC
Data 91: HDMI2
Acknowledgement [b][ ][Set ID][ ][OK/NG][Data][x]
2 2 4 4 . . B B a a c c k k l l i i g g h h t t ( ( C C o o m m m m a a n n d d : : m m g g ) )
To adjust screen backlight.
Transmission [m][g][ ][Set ID][ ][Data][Cr]
Data Min:00 ~ Max:64 (*transmit by Hexadecimal code)
*Refer to 'Real data mapping' .
Acknowledgement [g][ ][Set ID][ ][
Step
NTSC air
NTSC cable
Data 21: AV2
Data 90: HDMI/HDMI1
Data 92: HDMI3
OK/NG
][Data][x]
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