Kystar KS928 User manual

1. KYStar KS928 Multi-Image Splicing Processor
Multi-Image Splicing
Processor
Operation Manual

1. KYStar KS928 Multi-Image Splicing Processor
Statement
Thank you for choosing our products.
All rights of the manual are reserved by the company and no copy, delivery, distribution or
storage of any form of the content is allowed without written permission from the company. The
company reserves the right of modifications and improvements of any product function described
in the document without prior notice.
Any possible affiliated control software of the product is only for your usage while all its
rights are reserved by the company. You are allowed to copy the software but only limited to your
personal usage. If the software is to be applied to other purposes, in particular commercial
purposes, please contact us. The company reserves the right of investigate and affix legal
liabilities of any infringement act.
Please read the manual carefully before using. Any improper operation may cause damage to
the product. It is operated with electricity and sufficient attention should be attached. Our
company bears no responsibility for any property loss and personal injury incurred from any
improper operation failing to follow the instructions in the manual. If the provision herein
conflicts with local laws or regulations, the latter shall prevail.
It means that you accept the statement above if you use the product. If not, please contact
with the seller and return the product following relevant procedures.
Certification Description
“CE” Certification
EN 55022：2010
EN 55024：2010
EN 61000-3-3：2013
EN 61000-3-3：2014
EN 0950-1：2006+A11：2009+A1：2010+A12：2011+A2:2013
“FCC” Certification
FCC Part 15
ANSI C63.4：2014
“ROHS” Certification
EPA 3050B：1996，EN1122:2001
EPA 3052：1996，EPA 3060A
EPA 7196，EPA 3540C，EPA 8270C
Version Information
Version: v1.0
Issue Date: June, 2016

1. KYStar KS928 Multi-Image Splicing Processor
SAFETY PRECAUTIONS
For your safety, please read this section carefully.
Power
Power supply of the device for normal operation is 100-200V AC.
Please make sure that the product is operated within the voltage range.
High voltage
High voltage devices are contained.
Do not dismantle without professionals
The device is not equipped with repair parts which aimed for
maintenance by customer himself, so do not open chassis and operate
by yourself which may lead to unrecoverable damage of the device. If
maintenance is required, please contact after-sales service personnel.
Assure sound grounding
For your safety, please assure that power line is grounded soundly.
Keep away from strong magnetic field, engine and transformer
For normal operation of the device, please stay away from strong
magnetic field, motor and transformer.
Guard against damp
Keep operational environment dry. If the device becomes damping
inadvertently, do not power the device and use it after being dried.
Keep away from explosives
Please do not use the product in combustible or explosive
environment.
Prevent liquid or conductive fragments getting into the chassis
Liquid or metal fragments should be stopped from getting into the
case. If so, the device should be powered off immediately and power
supply can only be allowed after clearance of foreign bodies.

1. KYStar KS928 Multi-Image Splicing Processor
Table of Contents
1. Product Introduction...............................................................................1
2. Hardware Introduction............................................................................2
2.1 Front Panel......................................................................................2
2.2 Back Panel......................................................................................3
3. Device Debugging..................................................................................4
3.1 Device Connection.........................................................................4
3.2 Debugging Steps.............................................................................4
3.3 Case Study......................................................................................8
3.4 Function Keys...............................................................................16
3.5 Advanced Menu............................................................................19
4. Technical Parameters............................................................................20
5. Q&A.....................................................................................................21
Appendix: Graphics copy mode and extended mode setting…………...23
1. AMD Video Card............................................................................23
2. NVIDIAVideo Card.......................................................................24

Multi-Image Splicing Processor
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1. Product Introduction
The multi-image mosaic processor is a high-end video processing equipment developed and
manufactured by our company for LED large screen display, performance and leasing, conference
room, studio and so on.
The product adopts CPT+ FST splicing technology targeted for small pixel LED display to
guarantee uniformity and synchronicity of splicing. The Super Resolution Zoom-in Technology
can help eliminate jaggies and reduce the fuzzy sense and out-of-focus phenomenon due to image
magnification.
The product enjoys the following features:
1. Support various signal input includes conventional DVI, VGA, HDMI, CVBS, SDI and IP;
support 4K Ultra HD input and realize large screen point-to-point display.
2. Stand-alone can support user-defined layout of pixel 6.3 million and support output pixels
up to 15360 horizontally or 6144 vertically.
3. Support free-form four-image layout and realize central control of main screen, side screen,
floor tile or canopy of the stage in an easy way.
4. Support signal echoing and view real-time input and output signals by software.
5. Support multi-image preview and output monitoring.
6. Support seamless switch of signal and mode and provide over 10 kinds of transition special
effects.
7. Support overlay of multi-group editable and global image-texts and captions.
8. Support luma key, image transparency adjustment and edge feathering.
9. Support warm backup of multi-level input signal.
10. Support multi-machine synchronous cascade output.

Multi-Image Splicing Processor
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2. Hardware Introduction
2.1 Front Panel
①②③④⑤⑥⑦ ⑧
⑨⑩ ⑪⑫⑬
1. POWER: Power switch of 220V AC, with ON indicating power connected and OFF
indicating power disconnected.
2. LCD color screen: Information display screen showing device information and debugging
information.
3. ADJUST: Adjusting knob which can be used for selecting information on color screen and
adjusting various parameters rapidly. Counterclockwise rotation means up and clockwise refers
down. Rotation downward means confirmation.
4. OK: OK key for confirming debugging information.
5. MENU: Menu key for access to main menu for device debugging.
6. INFO: Information query key for real-time condition of input signal.
7. WIN: Image information key for displaying and switching image signal source.
8. S1-S6: Signal source key. Signal source key on main menu refers to input source of back
device and that on parameter input interface refers to number 1 to 5 and backspace key.
9. : Back or cancel key.
10. : Wizard key for getting into Wizard Mode.
11. FUNC: Common Function key for entering into common function interface.
12. OUT: Output option key for selecting output of blank, blue or normal screen.
13. M1-M6: Quick mode call key. Main menu interface is quick mode call key and
parameter input interface shows number 6 to 0 and clear key.

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2.2 Back panel
①②③④
⑤⑥⑦⑧⑨
1. MONTOR: Pre-monitor channel for monitoring input signal source or output interface
information.
2. OUTPUT: Programmatic output channel for pure digital DVI-D output and transmitting
card connection.
3. LANI: 100MB network control port which can realize device debugging by software with
its connection with computer 100MB network interface.
4. AC 100-220V: Power switch which can be connected to 100-220VAC.
5. INPUT S5, S6: Expanded input which is able to expand two regular ports or one 4KHDMI
input.
6. INPUT S1-S4: Regular input includes one group DVI, one group HDMI, two groups VGA
and CVBS.
7. LOOP: DVI-Loop output which loops S1-DVI signal and is used for multi-machines
cascade.
8. LAN2: GB network control port which can be used for device debugging and also echoing
function.
9. COM: RS232 control port which connects with computer serial port and can debug device
by PC Software.

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3. Device Debugging
3.1 Device Connection
Device connection could be divided into three parts: power connection, signal connection and
control connection (used for software debugging).
Power connection: device power supply. Connection method: connect power cord to power
plug.
Signal connection: the method transferring signal from signal source to LED large screen.
Connection method: signal source (e.g.: computer)→Mosaic Processor →Transmitting card →
Large screen.
Control connection: connect computer with device control port and debug device connection
method. There are three connection methods
(1) Connect 100MB network control port with splicer LAN1 port, which can set device
software.
(2) Connect computer gigabit network port with splicer LAN2 port, which can not only set
device but also echo signal source image.
(3) Connect one crystal head of serial port line which is randomly donated by device with
splicer COM port, and plug DB9 into computer serial port. Any kind of method among the three
can realize device software control.
Connection diagram is as follows:
Signal source
Monitor display
(Connection Selectable)
Display screen
Computer (Connection Selectable)
Mosaic Processor
Transmitting card

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3.2 Debugging Steps
Step 1: Click “MENU” to enter into main menu interface and click “Device Mode” to select
splicing mode: copy mode, horizontal mosaic, vertical mosaic and cross mosaic.
Note: Copy mode: all output contents are consistent; horizontal mosaic: content of all output are arranged
horizontally; vertical mosaics: contend of all output are arranged vertically; cross mosaics: contend of all output
are arranged in two rows and two columns.
Step 2: select suitable splicing mode and click “OK”; get back to main menu interface to
select “Screen parameter” and enter into its setting interface. Set loaded screen point of each
output interface and click “Confirm” after inputting, and then screen splice is finished.
Note: there are two ways for number input:
(1) Adjust by rotate knob. Step length can be adjusted by “×1”“×10”“×100”, for instance, “×100”means that
number of rotate knob increases by 100 each time.
(2) Input by number of the front panel. For example, of the key refers to figure 1.
Device Mode
Copy Output
Horizontal Mosaic
Vertical Mosaic
Cross Mosaic
OUT
Note:
All output displays are
the same.
Confirm
Cancel
×1
×10
×100
OUT1
OUT2
OUT3
OUT4
Screen Parameters
Horizontal Size: 1920
Vertical Size:1080
Rotate knob to select output
Click “OK” to adjust
Select by Finger key
S1


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Step 3: get back to main menu interface to select “Image layout” and enter into image
number selecting interface to select image number required to be set.
Note: This step can be skipped for signal image. For multi-image, it’s OK if image number and item
requirement are in consistent. Following operations can be taken to set when layout are not in consistent.
Step 4: Click “OK” and return to main menu interface; select “Image parameter” and enter
into its setting interface to set size and position of each image.
Step 5: Click “OK” and return to main menu interface; select “Clipped view” to enter into its
setting interface to set size and position of each image.
Image Layout
Image 1
S1
Layout 1
Layout 2
Layout 3
Layout 4
Layout 5
Layout 6
×1
×10
×100
Image Parameters
Select by Finger key
Horizontal Position: 0
Vertical Position: 0
Horizontal Size: 1920
Vertical size: 1080
Rotate knob to select output
Click “OK” to adjust
Image 4
Image 2
Image 3
Image 5
Image 6
Image 1
Clipped View
Select by Finger key
Image 1
Image 3
Image 2
Image 6
Image 4
Image 5
×1
×10
×100
Horizontal Position: 0
Vertical Position: 0
Rotate knob to select output
Click “OK” to adjust
Vertical Size: 1080
Horizontal size: 1920

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Note: This step should be skipped if full display of signal source is required on large screen; while if certain
signal source of multi-image is needed to be extracted, only setting of signal source image is required; if horizontal
size or vertical size is 0, it means no local extraction is required in this direction.
Step 6: Click “OK” and return to main menu interface; select “Save setting” to enter into
Data storage interface; select any mode and click “OK” to save data.
Note: Mode 1 is default startup data of device boot; it’s suggested that the most common mode or that
required by device boot should be saved to Mode 1.
At this point, basic device debugging is completed. If there is other requirement, repeat the
operation and save it as other mode.
After device debugging, just call saved data according to different condition requirements in
later stage.
Data call is divided into forms:
(1) For Shortcut key call, only click of “M1-M6” in front panel is required, which is
convenient when mode scenario is few.
(2) For User mode call of Main Menu, click “MENU” and select “User Mode” to enter into
its extraction interface. Then select needed mode and click “OK”.
Save Setting
Current mode does not exist!
Save mode 1
Device mode
Image layout
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8
User Mode
User Mode 1
Device Mode 2×2
Image layout 1
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8
Image 1
S1

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3.3 Case Study
Device debugging steps are explained by following cases.
Case 1: screen size is 2688×1664 and loading transmitting card is shown as picture below:
Requirement: whole computer desktop should be displayed completely.
1440 1248
Diagram of loaded transmitting card Display Effect
Debugging Steps:
Step 1: click “MENU” and enter into main menu interface to select “Cross Mosaic” of the
first item “Device mode”.
Note: since four transmitting cards are in a 2×2 layout, cross mosaic is needed then.
896
768
Device Mode
Copy Output
Horizontal Mosaic
Vertical Mosaic
Cross Mosaic
OUT1
Note:
All output interfaces are
combined horizontally.
OUT2
OUT3
OUT4

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Step 2: Click “OK” to return to main menu interface; select “Large screen parameters” to set
size of each output interface.
Note: Input according to corresponding transmitting card size of each output interface. For OUT1, its
horizontal size is 1440 and vertical size 896; for OUT2, they are 1248 and 896 respectively; for OUT3, they are
1440 and 768; for OUT4, 1248 and 768.
Step 3: After inputting, click “Confirm” and return to main menu interface. The large screen
splicing is finished, select signal source needed to display on screen and click corresponding key.
For instance, for display of computer signal on large screen and connection of computer DVI
interface with “S1-DVI” port of the back device, just click “S1” in the front which means
choosing the signal to display on the screen.
Step 4: After selecting signal and normal display of large screen, save all setting data. Click
“MENU” to enter into main menu interface, and then get into “Save setting” interface to select
“Mode 1” and click “OK”. Things will be fine when it suggests saving successfully.
Screen Parameters
OUT1
OUT2
OUT3
OUT4
Select by Finger key
Horizontal Size: 1920
Vertical size: 1080
Rotate knob to select output
Click “OK” to adjust
Confirm
Cancel
×1
×10
×100
Save Setting
Save Mode 1
Device Mode
Image Layout
Current mode does not exist!
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8

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Note: Mode 1 is default startup data of device boot; it’s suggested that the most common mode should be
saved to Mode 1 and the device can save 32 kinds of modes at most.
Case 2: Screen size is 6880×576 and loading transmitting card is shown as picture below:
Requirement: 1) Whole computer desktop should be displayed completely..
2) Screen is divided into three parts with proportion of 1:2:1.
1920 1920 1920 1120
Diagram of loaded transmitting card
Display effect 1
效果示意图二
Display effect 2
Debugging steps:
Step 1: Click “MENU” to enter into main menu interface. Select “Device mode” and then
“Horizontal Mosaic”.
576
Device Mode
Copy Output
Horizontal Mosaic
Vertical Mosaic
Cross Mosaic
OUT1
Note:
All output interfaces are
combined horizontally.
OUT2
OUT3
OUT4

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Note: since four transmitting cards are in a horizontal layout, horizontal mosaic is needed then.
Step 2: Click “OK”to return to main menu interface; select “Large screen parameters” to set
size of each output.
Note: Input according to corresponding transmitting card size of each output interface. For OUT1, its
horizontal size is 1920 and vertical size 576; for OUT2, they are 1920 and 576 respectively; for OUT3, they are
1920 and 576; for OUT4, 1120 and 576.
Step 3: After inputting, click “Confirm” and return to main menu interface. The large screen
splicing is finished, select signal source needed to display on screen and click corresponding key.
For instance, for display of computer signal on large screen and connection of computer DVI
interface with “S1-DVI” port of the back device, just click “S1” in the front which means
choosing the signal to display on the screen.
Step 4: After selecting signal and normal display of large screen, save all setting data. Click
“MENU” to enter into main menu interface, and then get into “Save setting” interface to select
“Mode 1” and click “OK”. Things will be fine when it suggests saving successfully.
Screen Parameters
OUT1
OUT2
OUT3
OUT4
Select by Finger key
Vertical Size:1080
Confirm
Cancel
×1
×10
×100
Horizontal size:1920
Rotate knob to select output
Click “OK” to adjust
Save Setting
Save Mode 1
Device Mode
Image Layout
Current mode does not exist!
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8

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Note: Mode 1 is default startup data of device boot; it’s suggested that the most common mode should be
saved to Mode 1 and the device can save 32 kinds of mode at most.
For above operation which has fulfilled the first requirement of the program, namely splicing
of the whole screen, image is displayed completely and correct data are saved. For the second
requirement which is that screen is divided into three parts with proportion of 1:2:1, only further
setting on operation above is needed.
Step 5: Click “MENU” and enter into main menu interface and select “Image layout” then
Layout 3.
Note: Default layout of the device is three equal parts. If it is desired, there is no need to carry out step 6. If
not, following operations are required.
Step 6: Click “OK” to return to main menu interface and select “Image parameter” to enter
into its setting interface. Since required image proportion is 1:2:1, the size of image 1, namely the
left one is 1720×576, image 2 which is the middle one is 3440×576 and image 3, the right one, is
1720×576. Since image 1 starts from the left, its horizontal position is 0. In the same way, image 2
is 1720 and image 3 is 1720+3440=5160. Due to the reason that vertical position is calculated
from the top, vertical position of three images are all 0. Above all, image 1’s horizontal position is
0, vertical position is 0, horizontal size is 1720 and vertical size is 576; the four parameters of
image 2 are 1720, 0, 3440 and 576 respectively and those of image 3 are 5160, 0, 1720 and 576.
After inputting, just click “OK”.
Image Layout
Layout 1
Layout 2
Layout 3
Layout 4
Layout 5
Layout 6
S1
Image 1
S1
Image 2
S1
Image 3
Image Parameter
Image 1
Select by Finger key
Image 2
×1
×10
×100
Image 3
Rotate knob to select output
Click “OK” to adjust
Vertical Size: 1080
Vertical Position: 0
Horizontal Size: 1920
Horizontal Position: 0

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Step 7: According to operation above, screen body has been divided into three images with
proportion of 1:2:1. Default display content of each image is S1. If different signal sources should
be designated for each image, click of front panel to enter into image switch interface.
Select image by rotate knob and choose signal by click of S1-S6 of front panel. For example, if
signal of image 2 is S6, click “WIN” to enter into image switch, then adjust rotate knob to image 2
(it’s selected if padded) and finally click “S6” of front panel. After selecting each image, save final
data which is the same with step 4.
Up to now, program debugging is finished. If any display method is needed in later stage, it’s
just OK to call saved mode. There are two ways for mode call. When mode number is not big, just
click M1-M6 of front panel which are shortcut key for mode call; when mode number is big (over
6), user mode call should be made. Click “MENU” to enter into main menu interface, then select
“User mode” and call needed mode.
Image Switch
Image 2
S1
Image 3
S1
Image 1
S1
WIN
User mode
User Mode 1
Device Mode 2×2
Image Layout 1
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8
Image 1
S1

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3.4 Function key:
Brief explanation of function key:
INFO: Information query key. Click this key and enter into its interface showing whether all
signal sources are inputting normally. Its interface is shown as below. Red light means signal is
lost while green one shows signal is normal.
WIN: Image key. Click this key to enter into its interface and signal source selection can be
made in following interface. Taking image 3 as instance, click “WIN” to enter into image switch
interface which shows current signal sources of three images. If signal source switch is needed,
rotate the knob first to select the image and switch by “S1-S6” of the front panel.
OUT: Output condition key. Click the key to enter into its interface with three output options:
blank screen, blue screen and normal screen. Selection of blank screen means all output interfaces
and large screen are blank; blue screen means all those are blue; and normal screen refers to
normal image output.
Information-Signal Condition
Image Switch
Image 1
S1
Image 2
S1
Image 3
S1

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FUNC: Function key. Click this key to enter into its interface which includes: brightness
adjustment, special effect switch, VGA adjustment, image matting setting, edge feather,
transparency setting, intelligent warm backup, preview monitor, IP setting, serial port, freeze
frame, local and global, color space, input brightness and switch time. The following are
explanations of those common functions.
1. Brightness adjustment
The device supports 1-255 stairs brightness adjustment. Brightness of all screen body can be
adjusted synchronously to meet customers’ different brightness adjustment requirements for
different conditions.
2. Special effect switch
The device support 16 kinds of special effect switch: round-in, round-out, diamond-in,
diamond-out, upward cross, downward cross, left cross, right cross, upper right cross, lower right
cross, upper left cross, lower left cross, horizontal comb and vertical comb. All those can meet
requirements of different scene switch.
3. Special effect time
Set image switch times or switch time among different modes with the range of 0.2s-3s.
4. VGA adjustment
Since VGA signal belongs to analogue one, it tends to causes deviations among common
functions. The product has two kinds of VGA corrections which are automatic correction and
manual correction.
5. Image matting setting
Image matting setting is to extract some caption or images and delete the rest parts, which is
often used in caption production. Taking red caption against black background as an example, the
black base map fades away with only red caption left after image matting setting.
6. Edge feather
By image edge blanking, it makes transition more smooth and soft, and make image overlay
more harmonious and vivid.
Output condition control
黑屏
蓝屏
正常
Note: Display blank screen

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7. Transparency setting
The product can adjust image transparency and even point-by-point adjustment to make
application scene more colorful.
8. Intelligent warm backup
User can set priority of backup signals. When current signal fails, the system will detect
automatically and call backup signal immediately; if signal returns to normal, the system will call
original signal intelligently. Parallel system constructed by this function can guarantee reliability
of scene.
9. Input brightness
Make brightness adjustment to single input source.
Note: Above-mentioned brightness adjustment is for whole large screen. While input
brightness adjustment is targeted for single signal source and only brightness of adjusted signal
source will change with other parts unchanged.
10. Color space
Setting input signal source S1 and S2, for instance RGB, YCbCr and other color space.
11. IP setting
Set device IP address for software debugging.
12. Local and global
Switch local display or global display of certain image on the condition that data of local
display is already set.
13. Freeze frame
Set stillness or movement of certain image which is often used for field change or
background switch.
14. Serial port setting
Set device serial port like baud rate and etc.
15. Pre-monitoring setting
There are three kinds of monitoring settings: input monitoring, output monitoring and input
and output monitoring.
Pre-monitoring input and output: can monitor large screen display, namely output.
Preview output channel: monitor all input and output.
Preview input channel: monitor signal source.