Uniharpa has developed a variety of video processing products.With advanced control and image processing technology,we can not only switch between signals fast and stably,but also process the images in multiple levels.In addition,the product can be controlled by the equipment keyboard and PC,which are easy to operate.

FAQ:

Q1: Definition of DVI, HDMI, VGA, CV & USB Ports

A:DVI: Digital (HD) video signal, an interface standard launched by DDWG (Digital Display Working Group), consisting of Silicon Image, Intel (Intel) and other companies, in 1999. It has been optimized in terms of speed, resolution and HDCP protocols. The signal sources are generally desktop, laptop and so on;

HDMI: High-Definition Multimedia Interface, a digital video/audio interface technology, special digital interface for video transmission; it can transmit audio and video signals simultaneously, and the maximum data transfer rate is 5Gbps. The signal sources are generally camera, laptop, and information dissemination system.

VGA: analog video signal (Video Graphics Array), a video transmission standard launched by IBM with the PS/2 machine in 1987, featuring high resolution, fast display rate and rich colors. It has been widely used in color monitor field. The signal sources are generally desktop, laptop, karaoke machine, matrix, etc.

CV: composite video signal; all signals will be packaged into a whole for transmission. The signal sources are generally camera, DVD, TV box, karaoke machine, video matrix, etc.

USB: Universal Serial Bus, an external bus standard used to regulate the connection and communication between computer and external device and an interface technology applied in the field of PC. USB was proposed by Intel, Compaq, IBM and Microsoft jointly in 1994. The signal sources are generally USB and SD card.

Q2: Please briefly describe the connection of graphics card, video processor, sending card, receiving card and LED screen.

A: The DVI (VGA) output port of the graphics card is connected to DVI-IN (VGA-IN) input of the video processor, DVI-OUT output of the video processor is connected to the sending card, the sending card is connected to the terminal receiving card in the back of the screen through the network cable, the receiving card is connected to respective screen and the entire large screen by cascading.

Q3: How many sending cards can be installed to the video processor? Why sending cards can be installed with no PCI slot inside the processor?

A: Up to two sending cards can be installed.

PCI slots in the computer are used to supply power for the sending card rather than video signal transmission, while the video processor provides 5V power via four-pin cable, and thus it is possible to install sending card.

Q4: What is the meaning of output resolution? Does it need to be set in advance?

A: Output resolution is the maximum output range of the processor. This value should be larger than the actual pixels of the LED screen. It will change automatically when the image parameters are adjusted, and don’t need to set up in advance.

Q5: How to set keypad lock of the video processor? How to unlock?

A: Menu - Advanced - Expert setup - Keypad lock; the keypad is locked when this option is turned on; press MENU for ten times to unlock.

Q6: What’s the administrator password set in PC software?

A: No password. Click OK directly to enter

Q7: What’re the reasons for the connection failure of serial port of the processor software? What’s the mark of proper connection?

A: The command transmission cable, i.e. the serial cable, should be connected to control the video processor with the computer.

Connection failure may be caused by the following conditions.

① COM port selection error; simply click OK and then click the "Open serial port" button;

② Serial port is occupied; do not open two or more software windows at the same time;

③ Serial cable is not connected or cable is damaged;

④ COM driver of motherboard is damaged or serial port is damaged.

Mark of proper connection: click OK in the pop-up dialog box "Synchronize software and device".

Q8: It is normal when the graphics card is connected to the sending card directly, but the screen will appear blank when it is connected to the video processor.

A: Check if the green LED of the sending card flashes normally; if yes, the processor output port has signal, and the possible reasons may be:

①Problem of signal source: The replication mode of the graphics card should be set before connecting to the computer; if not, DVI port of the graphics card doesn’t have data output. Setting steps: Turn off the video processor - reconnect the cable from the graphics card to the video processor - ATI graphics cards automatically read the replication mode; for NVIDIA graphics cards, enter the control center, and set up multiple monitors + dual screen mode.

②Problem of the cable: If the signal cable is poor in contact or the wire has problems, the big screen will have color strips, blurred screen and other irregularities. Carefully check if the pins of the signal cable are squeezed or inclined and replace the signal cable;

If the problem still isn’t solved, we will help you to solve the problems in the first time.