Kystar LS4 User manual

LS4
Four lan ports 2 in 1 video controller
Version: v2.3
Release Date:November 2021
Manual

Version record
version
number
Change details
release time
V1.0
first release
2018.12.12
V2.0
Modify device interface information
2019.11.28
V2.1
Modify the format of the text
2020.12.09
V2.2
change cover
2021.10.25
V2.3
Correct size data, modify function description
2021.11.18

Safety precautions
Danger
●There is high voltage in the equipment. Non-professional maintenance
personnel should not open the back cover to avoid danger.
Warning
● This equipment is not waterproof equipment, please do waterproof treatment in wet
environment;
● This device is not allowed to get close to fire or high temperature environment;
● If the device emits strange noise, smoke or strange smells, unplug the power plug
immediately and contact the dealer.
●It is strictly forbidden to plug and unplug the VGA, DVI, and HDMI signal
cables under power.
Attention
1 Please read this manual carefully before use ,and keep it for future;
2 this equipment is not suitable for non-professionals to operate and debug,please use under
the guidance of professionals;
3 this equipment is not suitable for non-professionals to operate and debug, please use under
the guidance of professionals;
4 Do not insert anything into the vent hole of the device to avoid damage or accidents to the
device;
5 It is not appropriate to place the device on a heat sink or other high-temperature place;
6 It is not suitable to place this equipment in near water or other damp places;
7 Please properly organize and place the power cord to prevent damage;
8 If the following conditions exist,the power plug of the device should be unplugged and
commissioned for maintenance;
●When liquid splashes into the device
●When the device is dropped or the chassis is damaged
●When the device has obvious abnormality or performance is significantly
deteriorated

catalog
I、Product discussion............................................................................................................................ 1
Ⅱ、 Product characteristics..................................................................................................................... 2
III 、 Technical indicators......................................................................................................................... 3
IV、Working sketch ............................................................................................................................4
V、Panel Structure
..............................................................................................................................5
Front panel............................................................................................................................................................. 5
Back panel.............................................................................................................................................................. 6
VI、Wiring and installation
............................................................................................................. 7
Wiring diagram......................................................................................................................................................7
VII、Equipment commissioning
.................................................................................................... 8
Navigation mode................................................................................................................................................... 8
VIII 、Control menu
........................................................................................................................... 14
（1）、Language.................................................................................................................................................17
（2）、Factory.................................................................................................................................................... 17
（3）、Support................................................................................................................................................... 17
（4）、Schedule.................................................................................................................................................. 17
（5）、Effect....................................................................................................................................................... 17
（6）、VGA adjust.......................................................................................................................................... 17
（7）、Contrast................................................................................................................................................17
（8）、Freeze.................................................................................................................................................... 18
（9）、Brightness............................................................................................................................................18
（10）、Master................................................................................................................................................ 18
X 、 Method of Importing Box Files....................................................................................................... 21

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I、Product discussion
With the rapid development and application demand of LED display industry, various control
requirements for large screen control system emerge as the times require. However, due to the
limitations of the large screen control system in image processing, picture control and signal
format conversion, there are some weak links in the large screen control system of LED, which
can not meet the needs of users. The main problems are as follows:
1.The signal source access format of large LED screen control system is limited. At present,
only digital DVI signal is commonly used. Many signal sources (such as VGA) can not be
displayed directly on the large LED screen through the control system.
2.The image processing effect of traditional signal acquisition card is poor, which causes
great loss to the clarity of the picture while converting the signal format.
3.The large LED screen control system can only capture the corresponding points of the
large LED screen for display, while in some customer sites, it is necessary to display any size or
complete computer desktop screen at will.
4.The large LED screen control system can only capture the corresponding points of the
large LED screen for display, while in some customer sites, it is necessary to display any size or
complete computer desktop screen at will.
In view of the above problems, our company independently developed a number of video
processing products. The product adopts advanced control and image processing technology,
which can not only realize switching between signals quickly and steadily, but also process
multi-level pictures. In addition, the product can be controlled by keyboard and PC computer on
the device, which makes the operation simple and convenient.

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Ⅱ、Product characteristics
Professional Video Processor:
HD Multi Format Signal input
Transient or fading transitions between arbitrary signals
Arbitrary free Zoom Display
Integrated LED sending card：
4 pcs network port output, the output max width 3840, the max high 1080
Loading 2.36 million pixels
Support without computer direct operation,3 Step configuration screen
high-performance offline Player:
Support USB playback, perfect support for various video and picture formats
Offline scheduled tasks that automatically play or switch signals at a user-set time
One-click configuration :
Support readback configuration and resend configuration implementation, easily realize one-key repair

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III、Technical indicators
The video processor adopts the latest patented video processing technology, and has the
video conversion capability of any format input and corresponding format output. Video signals
including CVBS (composite video), HDMI, VGA (RGB) and DVI-D can be processed and
enhanced to meet customer application needs. The detailed specifications are as follows:
Input port
Type
Number
Specifications
CVBS（BNC）
2
NTSC/PAL Adaptive, support 3D comb filter
VGA
1
VESA Standard, maximum support 1920x1080@60hz
DVI
1
1.3 Standard, maximum support 1920x1080@60hz
USB
1
USB input, NTFS system supports up to 2T, FAT32 system supports up
to 192G, and single file up to 4G
HDMI
1
1.3A Standard, maximum support 1920x1080@60Hz
1/8" TRS audio
2
3.5mm stereo interface, 2.0Vp-p / 10 KΩ
Output port
Type
Number
Specifications
LAN
4
LAN port, used to transmit data to the receiving card, the output widest
can reach 3840, the highest can reach 1080, the maximum load is 2.3 6
million pixels
1/4" TRS audio
1
6.3mm stereo interface, 2.0Vp-p / 10 KΩ
Control port
Type
Number
Specifications
USB（Type-B）
1
USB-CFG interface, used to connect to PC upper computer control
UART（RJ-45）
1
6.3mm stereo interface, 2.0Vp-p / 10 KΩ
Control port
Input power
100-240VAC 50/60Hz 0.6A
Working temperature
0-45℃
Dimensions
483×270.5×73mm（L×W×H）
Net weight
5KG
Whole machine power
36W

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IV、Working sketch
LED screen
Video processor
Desktop computer laptop camera DVD

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V、Panel Structure
Front panel
⑴ ⑵ ⑶ ⑷ ⑸ ⑹ ⑺ ⑻ ⑼ ⑽
⑾⑿⒀ ⒁⒂ ⒃⒄
⑴POWER-----------------------------Device switch, OFF - power off, ON - power on
⑵LCD----------------------------------Text display, displaying menus, parameters, etc.
⑶DVI-------------------------------------------------------------Digital signal channel key
⑷HDMI----------------------------------------------------HD multimedia channel button
⑸VGA-----------------------------------------------------------Analog signal channel key
⑹BRI-----------------------------------------------------------------------Brightness setting
⑺MODE-------------------------------------------------------------------User mode call
⑻MENU----------------------------------------------------------------------------Menu
⑼OK--------Confirm button, click to enter the next interface when navigating mode
⑽ADJUST--------------------Knob increase the decrease button, press the OK button
⑾/⑿CV1~2---------------------------------------------Composite signal channel button
⒀USB-----------------------------------------------------------USB signal channel button
⒁OUT---------------------------Switch between output black screen and normal; Note:
Blue screen is switched with knob
⒂PART-----------------------------------------------------Do partial panorama switching
⒃Navigation key--------------User navigation mode, as a step value switch when
adjusting the data size
⒄Arrow sign----------------------------------------------------------------------back key

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Back panel
⑴ ⑵ ⑶ ⑷ ⑸ ⑹⑺ ⑻ ⑼⑽ ⑾ ⑿
⑴UART -------------------------------------Connect the host computer software through
the 9-pin serial port to the RJ45 network port
⑵USB-CFG ---------------Connect the host computer software through the USB port
⑶USB --------------------------------Program upgrade port, USB source input interface
⑷HDMI------------------------------------------Laptop, etc. HDMI signal input interface
⑸DVI ------------------------------DVI signal input interface such as desktop computer
⑹VGA----------------------------------------laptop and other VGA signal input interface
⑺CV-1/2--------------------------------Composite signal input interface such as camera
⑻AUDIO1/2-----------------------------------------------------------Audio input interface
⑼AUDIO -OUT------------------------------------------------------Audio output interface
⑽SAT1/2/3/4----------------------------------------Network port 1/2/3/4 signal indicator
⑾LAN1/2/3/4------------------------------------------------------------Network port output
⑿Power port-----------------------------------------------------------------------220V power

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VI、Wiring and installation
Wiring diagram
installation steps
1、Connect the DVI interface of the graphics card to the DVI-IN input port of the video
processor as shown in the figure.
2、Then connect as shown in the figure, connect the DVI interface of the graphics card to the
DVI-IN input port of the video processor, and connect the DVI-OUT output port of the processor
to the sending card;
3、Make sure that the wiring is correct and power on to turn on the video processor.
Signal source
LED 屏
电源线
Output port
Lan cable
USB control cable

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VII、Equipment commissioning
Navigation mode
This Wizard is suitable for most cases. It is simple to set up. With the prompt, you can
gradually debug it to achieve the desired display effect. The processor automatically enters the
navigation mode when it is powered up.(or Click Enter Navigation Mode）：
Note: Screen-adjusting navigation refers to debugging parameters of sending and receiving cards,
which requires box files; image navigation refers to debugging parameters of large screen image and
local display.
Click on "Screen-adjusting Wizard" and enter the password for setting the screen-adjusting:
Note: Set the password of "168", "666", "888" and "999" to adjust the screen.

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Select whether to import the box file:
Note: The box files need to be imported into the equipment through the upper computer software.
The box files here refer to the parameters of the receiving card.
Set the number of cabinet rows/columns:
Note: Number of rows/columns in the box refers to the number of horizontal/vertical receiving cards
used in the large screen.

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Set the cabinet splicing method:
Note: The cabinet splicing method refers to the splicing method between the two network cables
of the device.
Set the cabinet connection method:
Note: Cabinet routing mode: Series mode between receiving cards should ensure that
the direction of the two cable is the same.
Display whether normal:
Note: The screen displays normal click ok; if abnormal, click No, go back to selecting the cabinet
file and set it again.

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Set screen pixels.
Note: Set screen pixels, the screen pixels is the resolution of the whole screen.
Save settings:
Note: Some parameters of the control system are saved here.
Select the input source:
Note: Select the input signal source
Whether local display is needed:

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Note: This interface is to select whether it is necessary to intercept part of the image of the input
signal source and display it on the LED screen.
Ps-The most common way to do "partial display" is to display the full screen of the playback
window and switch to the panoramic display of the computer desktop at any time.
Among them, "position" - where to start the interception; "size" - how big the interception is. The
interface is as follows:
Local display settings:
Part mode
full mode

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Save mode settings:
End of navigation:
The last step is to save the settings, in which mode one is automatically invoked after
booting.
At this point, the setup of the processor is completed. In the process of using it, the signal
can be switched directly with the front panel. When "local display" is needed,click It can
switch the "local/panoramic" of the current signal source. If multiple modes are saved,use call
different mode
Thank you again for using our video processor. Please refer to the back section for other
details.

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VIII、Control menu
Main menu
Option
Defaults
（1）screen
Navigation mode
（2）scaler
parameters
Horizontal position
0
Vertical position
0
Horizontal size
1920
Vertical size
1080
（3）part
Horizontal position
0
Vertical position
0
Horizontal size
0
Vertical size
0
（4）Save mode
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
（5））user
mode
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5

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（6）MORE
（1）Language Settings
English
English
Chinese
（2）factory
confirm
cancel
（3）support
Please contact the sales staff.
400-159-0808
（4）Scheduled Tasks
Enable
Disable
（5）effect
Enable
Disable
（6）VGA adjust
Horizontal position
default
Vertical position
default
Horizontal size
default
Vertical size
default
（7）contrast
Contrast
128
Red
128
Green
128
Blue
128

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（8）Freeze
Freeze
Active
（9）Brightness
Brightness
128
Red
128
Green
128
Blue
128
（10）Master
（1）Load hotkey
Enable
Disable
（2）Key locked
Enable
Disable
（3）Play Type
Video
Picture
（4）Resume
Enable
Disable
（5）Online load
OK
ESC
（6）Information
（7）Sharpness
（8）Voice
Mute
Volume
Select source
（9）resend config
（10）read config
（11）EDID
Among them, the functions of the first four options have been introduced before, and I will
not repeat them here. Regarding the output resolution, it will automatically change when you
navigate and set the screen parameters, or you can select it manually. Meaning of each option: