Kystar KS800 2K HD Big LED Display Video Processor
Multi-Window Processor
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IX. FAQ
Q1. DVI, HDMI, VGA, CV port definitions
A: DVI: Digital (HD) Video Signal Interface – As an interface standard launched in 1999 by DDWG (Digital
Display Working Group) founded by Silicon Image, Intel and other relevant companies, it has offered sufficient
optimization in terms of speed, definition and HDCP protocol, etc. Its signal sources generally refer to desktops and
laptops, etc;
HDMI: High-Definition Multimedia Interface - As a kind of digital video/audio interface technology and a
special digital interface suitable for video transmission, it can transmit video and audio signals at the same time with
the maximum data transfer rate up to 5Gbps. Its signal sources usually refer to video cameras, notebooks and
information release systems, etc.;
VGA: Video Graphics Array (analog video signal) – As a video transmission standard launched by IBM in 1987
together with its PS/2 computer, it has been widely used in the field of color display by virtue of its such advantages
as high resolution, fast display and rich color. Its signal sources generally refer to desktops, notebooks, jukeboxes and
matrixes, etc.;
CV: Composite Video (also called as Composite Video Signal) – It is a kind of signals with all relevant signals
packaged as a whole during transmission. Its signal sources usually refer to video cameras, DVD, TV boxes,
jukeboxes, video matrixes and other relevant devices.
Q2: Briefly introduce how to connect the graphics card, video processor, transmitter card, receiver card and
LED screen body.
A: Connect the DVI (VGA) output port of the graphics card to the video processor DVI-IN (VGA-IN) – The
DVI-OUT of the video processor outputs to the transmitter card – The transmitter card is connected with the terminal
receiver card at the back of the screen body by means of a cable – The receiver card is connected with the screen
body individually controlled and filled the whole screen by means of cascading.
Q3: How many transmitter cards can be loaded at most in a video processor? There is no PCI card slot
provided in a processor, why can transmitter cards be loaded in it?
A: Two transmitter cards at most can be loaded.
The PCI card slot in a computer can only supply the transmitter with power but not transmit video signals and
the video processor provides 5V power supply by means of a 4-pin flat cable, so transmitter cards can be installed.
Q4: What does the output resolution mean? Shall we set it well in advance?
A: The output resolution refers to the maximum range of the processor output and its value is OK as long as it is
greater than the actual pixels of your LED display; it will change automatically when you are adjusting the image
parameters, so basically it doesn’t need to be set in advance.
Q5: How to set up the keyboard lock of a video processor? How to unlock it?
A: Click “MENU – Advance Menu – Expert Settings - Keyboard Lock” to lock the keyboard and you can press
the MENU button for consecutive 6 times to unlock it.
