LINK-MI LM-TV21 User manual

Video Wall Controller
LM-TV21
User Manual

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Catalog
1st . Installation instructions ………………………………………… 2
2nd . Product overview ……………………………………………… 4
3rd . Remote control ………………………………………………… 6
4th . Button panel …………………………………………………… 6
5th. Equipment installation ………………………………………… 7
6th. Parameter setting ……………………………………………… 8
7th . USB function ………………………………………………… 11
8th. RS-232 control ………………………………………………… 12
9th.SPECIFICATION………………………………………………… 15

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1st. Installation instructions
For the safety of your equipment, please read the safety
instructions carefully before using this device. If you are in
doubt, please read this manual first. In this manual list has
detailed description of the equipment operation. If you are
still have a question, please contact us, we will give you a
satisfactory answer as soon as possible.
If there is any change in the specification, Please forgive us
for not informing you.
When equipment is installing, please note the following:
1. Power:
This equipment supports 100-240V AC voltage input, please check
your power is safely and suitable.
2. Power off:
Please make sure power off when you connect cables or carry the
equipment, and others.
3. Cables:
Don't squeeze the wire, Separate the power cables and signal
cables, Prevent interference.
4. Cooling hole:
There are some cooling hole of the Equipment outside surface ,
do not plug these holes, so as to avoid heat accumulation,
damage to equipment or cause fire and other hazards.
5.Equipment placement:
Should be reasonable placement equipment, such as the load
standard rack, chassis, cabinets, or placed in a solid flat on
the table, to prevent the device from falling.
6.Environment:
Equipment working environment should pay attention to dust,

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moisture, in particular, to prevent the liquid immersion and
splash into the device.
7. Repairs:
All maintenance work should be done by professional maintenance
personnel, and not to try to repair the equipment without
training. To prevent electric shock, do not open the shell.
Safety precautions:
1. The equipment has a high voltage power, non professional
maintenance personnel shall not open the case, so as to avoid
dangerous;
2, No water or water splashing, It is strictly prohibited on
the device to put any containers of liquid containers;
3. In order to prevent the fire, the prohibition of equipment
near the fire source;
4.In order to fully ventilation, the front and rear panels
should be kept at least 20cm of the gap;
5. The equipment such as strange noise, smoke or smell,
immediately unplug the power plug, by professional repair
personnel;
6.In the case of thunder and lightning, or not, please unplug
the power plug;
7. Do not plug into any object from the ventilation holes of
the device, so as not to cause damage to equipment or electric
shock;
8. Do not put the equipment on the water or other wet places;
9.Not to be placed in the vicinity of the heat sink or other
high temperature;
10. Please be careful put the power line, to prevent damage;
The following circumstances, should unplug the power
plug, by professional maintenance personnel:
1) plug power cord is damaged or worn out;
2) liquid is spilled into the device;
3) when the equipment is dropped or the case is damaged;
4) the device has a distinct function or performance change.
5) check whether the normal operation of the fan, if the fan

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does not work should immediately unplug the power supply, by
professional personnel;
This device is not suitable for non professional operation and
commissioning, users must receive professional training and
guidance.
Please read the instruction carefully before use, and the
instruction should be kept for use.
2nd . Product overview
1. overview:
This video wall controller is for LCD TV, ultra narrow side
LCD screen, projector and so on, high-definition picture mosaic
processor can be customized according to user needs 1 to 25 HDMI
output splicing. Products with high definition processing chip,
support 1080P signal input and output, supports 1 composite
video, 1 VGA, 1 USB model, 1 HDMI input, all input signals can
be switched to the large screen display, and audio and video
synchronization output.
Product design infrared remote control, users operate the
mosaic processor is more simple, intuitive, it can also be
controlled through RS-232. The user through the remote fast
control and full function control, the operation is more humane,
more simple.
2.System topology diagram

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2.Machine pictures and dimensions
Size: 482mm(L)*283mm(w)*88mm(D) (with Tripod)
440mm(L)*283mm(w)*88mm(D) (without Tripod)
3.PANEL DESCRIPTIONS

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3rd . Remote control
1. Remote control function:
User operate the remote control the mosaic screen, it
can setting full function by remote, like user operate remote
for TV, very easy and simple.
2. remote control buttons function diagram:

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4th . Button panel
SWITCH: mosaic on/off MENU
Vol-：Volume reduce Vol+:Volume increase
UP DOWN
HDMI:HMDI input VGA:VGA input
VIDEO:AV input USB:USB channel
5th . Equipment installation
1. Open the package

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Check host and accessories. Including mainframe, power, remote
control, warranty card, certificate, manual.
2. Installation machine
2.1. TV set: the LCD TV or other display device input signal
is set into the corresponding HDMI channel;
2.2. HDMI Output and TV connection
HDMI1 connect to LCD1(Display 1);
HDMI2 connect to LCD2(Display 2);
HDMI3 connect to LCD3(Display 3);
HDMI4 connect to LCD4(Display 4);
HDMI5 connect to LCD5(Display 5);
HDMI6 connect to LCD6(Display 6);
HDMI7 connect to LCD7(Display 7);
HDMI8 connect to LCD8(Display 8);
HDMI9 connect to LCD9(Display 9).
.
.
.
as shown In the following diagram
2.3. Input signal interface

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This machine support 1 USB, 1 HDMI, 1 VGA, 1 AV input, all
inputs are embedded or bound to audio input, user can access
all the signals or access to some of the signal, the input
interface such as:
USB interface: can be directly inserted into the USB disk,
embedded audio, you can play video, pictures, TXT documents,
MP3 inside of the USB disk ;
HDMI interface: can be connected to the computer, players and
other HDMI output device, embedded audio;
VGA interface: a device that can be connected to a computer or
other device with a VGA A-IN is an audio interface with a VGA
binding;
Video interface: V-video signal, R and L are respectively
connected with the left and right channel audio signal of video
binding;
2.4. Audio connection
A-OUT for the audio output of the machine, it can connect
with speaker or others.
2.5. Power on
After all cable is connected, insert the AC power supply,
turn on the power switch, the power indicator light is green,
that the device is working.
6th . Parameter setting
Complete splicing device installation and connection,
open the switch will appear or display a black screen image
signal. If black signal, need by remote control or button to
switch to the corresponding signal source, such as: then the
HDMI signal and ua1 switch directly to the HDMI signal source.
After the image is out, it is possible that some of the LCD
screen image is inverted, or when the film because of the LCD

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screen frame caused by image distortion and other issues, this
time we also need to set up the parameters of the mosaic through
the menu keys (MENU), so we need to be familiar with the
operation of the menu.
Press the MENU key, then press the left button to press
the left button to come out a few different
Menu 1, 3, 4 categories of the factory has been set as the best
recognized state, do not need to change, we need only to set
menu 2:
1. OSD Language
Move the cursor to OSD Language,press left or right,then user
can choose OSD language.
2. Restore Factory default
Usually do not need to set up, if the user debugging is more
messy, you can try to use the reset factory settings.
3. Mosaic on
Move the cursor to the Mosaic,press left or right to choose open
mosaic or off,same as switch on the remote.
4. Mosaic config 3X3
Press left or right choose different mosaic mode,like
1X2,1X3,1X4,1X5,1X6,1X7,1X8,1X9,2X1,2X2,2X3,2X4,3X1,3X2,3X3,
4X1,4X2,5X1,6X1,7X1,8X1,9X1.such as 1X2 mode,this is meaning
line 1 and row 2.
5. Mosaic mac address 1
The mac address is the machine output interface,if this display

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unit connect to the HDMI1 interface,user move the cursor to the
mosaic mac address and press left or right,this display unit
will display mosaic mac address:1
6. Soft Address setting 1
This address can be changed,change the one display unit soft
address,the display unit display different video.
Such as 3*3 mode:
7. Mirror
That is the rotation of 180 degrees, a lot of LCD TV due to the
narrow width of the border, a row when the wall is a row of flip
upside down, through the mirror function can be individually
set each screen is rotated 180 degrees. First set the cursor
to the mac address of the corresponding screen, and then put
the cursor to the mirror,and press the left or right to the
rotation of the screen can be real.
8. Horizontal 0 and Vertical mosaic pitch 0
LCD screen of the physical gap lead to complete image is strong
pull off a moment, make the image deformation, distortion, use
for adjusting the size of the jointing horizontal and vertical
assembly size the image loss of a part of, but keep images
without distortion and distortion, as shown below:
9. Out mode
Can be set 1080P60, 720P60, 1024x768@60 three resolution output

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to adapt to different display devices. You can press “7” on
the remoter choose different resolution.
10. Out Type
Can be set HDMI or DVI model.if you set HDMI model,the HDMI
port will output audio;if you set DVI model,the HDMI port will
not output audio.But A-out is analog audio output port,no mater
HDMI or DVI model,it have audio output.If your monitor only
support DVI model,you must choose DVI output,if your monitor
only support HDMI model,you must choose HDMI output.you can
press “9” on the remoter choose DVI or HDMI output model.
7th . USB function
This video wall controller can decoding video,
audio,picture,TXT file of USB disk signal
Video:Decoding a lot of different formats of video files,like
*.mp4/*.avi/*.mpeg/*.wmv/*rmvb and so on,video file up to
1920*1080
Audio: decoding MP3 and other formats audio files.
Photo: decoding JPG and others.
TXT: decoding TXT file.
play all the video or need to play the picture, TXT
document, MP3 content, you can press the remote control to
return the keys and then re enter the play folder, press the
play / pause button to play all of the content, or through the
navigation keys to select some of the contents of the OK.
Normal playback state according to the remote OK key can
be transferred out of the fast forward, slow progress, a song,
a song pause, image playback mode.
8th . RS232 Controller

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Band rate:115200 Data Bit:8
Check Bit:None Stop Bit:1
AV： 0Xff,0Xf7,0x5a,0x00,0x30,0x00,0x80
VGA： 0Xff,0Xf7,0x5a,0x00,0x31,0x00,0x81
HDMI： 0Xff,0Xf7,0x5a,0x00,0x32,0x00,0x82
USB： 0Xff,0Xf7,0x5a,0x00,0x33,0x00,0x83
HDMI output 1080P： 0Xff,0Xf7,0x5a,0x00,0x34,0x00,0x84
HDMI output 720P： 0Xff,0Xf7,0x5a,0x00,0x35,0x00,0x85
HDMI output 1024*768： 0Xff,0Xf7,0x5a,0x00,0x3b,0x00,0x8b
Mosaic display mode： 0Xff,0Xf7,0x5a,0x00,0x36,0x00,0x86
Unit display mode： 0Xff,0Xf7,0x5a,0x00,0x37,0x00,0x87

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9th
SHENZHEN LINK-MI TECHNOLOGY CO.,LTD
WWW.LINK-MI.COM E-mail: [e-mail]