LG 26LC2D - Manual (Page 53)

53
Reference
18. Tune Command (Command: m a)
G To tune channel to following physical/major/minor number
Transmission
Data 0: Physical Channel Number(Transmit by Hexadecimal code)
NTSC air:02~45
NTSC cable: 01~87
ATSC air:02~45
ATSC cable:01~87
Data 1,Data 2: 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: If the channel band is ATSC digital cable,
it can be used. In case of using one part channel number, minor
channel does not need.
Data 3, Data 4: Minor Channel Number Data3: High byte Data4: Low byte
Data 5:
[m][a][ ][Set ID][ ][Data0][ ][Data1][ ][Data2][ ][Data3][ ][Data4][ ][Data5][Cr]
7
Main
Picture
6
Two/One
Part
Channel
Using
Physical
Channel
4
Reserv
ed
3 2 1 0 Step
0
1
Main 0
1
Two
One
Use
No Use
x x x
x
x
x
x
x
x
x
x
x
0
1
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
0
1
0
1
1
1
0
1
1
0
x
x 0 1 1 0
NTSC Air
ATSC
cable_auto
ATSC
Cable_irc
ATSC
Cable_hrc
ATSC
Cable_std
NTSC Cable
ATSC Air
Reserved
...
Reserved
5
0
1
[a][ ][Set ID][ ][OK][Data0][Data1][Data2][Data3][Data4][Data5][x]
[a][ ][Set ID][ ][NG][Data0][x]
Acknowledgement
* All data are transmitted by Hexadecimal code
*Two/One part Channel: 6th bit
This bit is used in a cable-ready system.
*Using physical channel: 5th bit
If the channel band is NTSC air or NTSC cable, channel tuning
can be done by only physical channel. In this case, using phys-
ical channel bit must be low(0).
But if the channel band is ATSC air or ATSC cable, there are two
cases that physical channel enable or disable.
If the physical channel sending is meaningful, you should set
this bit low(0). If the physical channel sending is
meaningless, you should set this bit high(1).
Example)
1. Analog channel: NTSC cable, channel number(35), main pic-
ture Command: ma 00 23 xx xx xx xx 01attribute(0x01): main
picture, two part(it’s not mandatory), using physical channel,
NTSC cable ‘xx’ data: don’t care major and minor channel
number in case analog channel tuning.
2. Digital channel: ATSC air, channel number(don’t know physi-
cal channel, major(30), minor(3)), main picture
Command: ma 00 xx 00 1E 00 03 22 attribute(0x22): main
picture, two part, not using physical channel, ATSC air ‘xx’
data: don’t care analog channel number in case digital chan-
nel tuning.
3. Digital channel: ATSC air, channel number (physical(20),
major (30), minor (5)), main picture
Command: ma 00 14 00 1E 00 05 02 attribute(0x02): main
picture, two part, using physical channel, ATSC air.
21. Input select(Command: x b) (Main Picture Input)
G To select input source for TV.
Transmission
[x][b][][Set ID][][Data][Cr]
19. Channel Add/Del (Command: m b)
G To add and delete the channels
Transmission
Data 0: Channel Delete
1: Channel Add
[m][b][ ][Set ID][ ][Data][Cr]
[b][ ][Set ID][ ][OK][Data][x]
[b][ ][Set ID][ ][NG][Data][x]
Acknowledgement
20. Key (Command: m c)
G To send IR remote key code
Transmission
Data Key code: Refer to page 55.
[m][c][ ][Set ID][ ][Data][Cr]
[c][ ][Set ID][ ][OK][Data][x]
Acknowledgement
[b][ ][Set ID][ ][OK/NG][Data][x]
Acknowledgement
Data Structure
DATA (Hex) INPUT
00 DTV (Antenna)
01 DTV (Cable)
10 Analog (Antenna)
11 Analog (Cable)
20 AV1
21 AV2
40 Component 1
41 Component 2
60 RGB PC
90 HDMI1/DVI
91 HDMI2