LVP502 user manual
LED Video Processor
Table of Contents
Without written permission of the Company, no unit or individual may imitate, reproduce or copy this Manual, in full or in part. This Manual shall not be distributed or used for any commercial purposes in any form (electronic, mechanical, photocopy, recording or other possible forms).
The product specifications and information mentioned in this Manual are for reference only and are subject to change without notice. Unless specifically agreed, this
Manual is for guidance only. No statement or information in this Manual constitutes guarantee in any form.
About This Manual
Read this Manual carefully before using this device.
For persons who need to purchase the accessories to this device
This Manual also provides the instructions on how to use such accessories.
If this Manual provides the instructions on how to use an accessory to this device, the name of the accessory will be provided accordingly.
Read this Manual together with the supplied instructions on the accessories to this device.
VGA and XGA are the registered trademarks of IBM.
VESA is the trademark of Video Electronics Standards Association.
The HDMI logo and High-Definition Multimedia Interface are the trademarks of HDMI
The device is designed for indoor . For outdoor use, please take precautions.
The device needs to use voltage with rated power. The error of input voltage must be
Never use the device in a place with the altitude over 3048m.
Never use the device after putting any foreign matter, such as water or metal object, into it, otherwise the device may be damaged and a fire may be caused.
Never use the device in certain special environments, such as near a heat source.
This may overheat and damage the device. Use the device in a well-ventilated place and prevent the ventilation opening of the device from being blocked.
Never use the device in an environment where the temperature changes suddenly to prevent condensation.
Never use the device in an environment with excessive dust or high humidity.
Use the device in an environment with the ambient temperature from -10℃ to 40℃ and relatively humidity of 90% or below.
Never expose the device to a place where accidental collision or vibration may occur.
Consolidate the device when it is to be used in a place with vibration.
Never connect the AC power cable to an AC power cable that may cause excessive noise.
The device must be connected with a ground wire.
In case any irregular or abnormal phenomenon is found, immediately switch off the power supply, disconnect the AC power cable, and handle the phenomenon by referring to the Troubleshooting Guide.
If the device is damaged, never dismantle it without permission. Please contact the service department.
Open the package carefully, and check whether the following objects are contained in it. If any accessory is lacked, contact the seller.
AC power cable
1 pcs (for
100-240 V) Connected to the
AC power connector to supply power to this device.
DVI cable 1 pcs
Used to connect the signal source to the DVI input port of the device or connect the DVI output port of the device to the
LED transmission card.
M3*6 Round Head Screw
and Φ 5*18mm
Spacer (4PCS) Used to fix the
LED sending card.
LED Sending Card (optional)
SDI Module (optional)
Reference for the user purchasing or using the device.
The certificate that proves the product passes the strict quality inspection.
Product after-service recording card, with which, the after-service provided by the Company can be enjoyed within the warranty period.
The Video Processor is a high performance LED video processor that uses the 30-bit digital signal processing technology, advanced deinterlacing signal processing and real
Seamless Switch technology for professional demonstration. It supports 1080p and
[email protected] full HD resolution output (up to [email protected]). Point-to-point pixel adjustment can be realized. It can receive several types of video input formats, such as 3G-SDI, HDMI, DVI, VGA ,CVBS.
Splicing LED Video Processor
The Video Processor supports signal cascade. Through a simple fusion device, ultra high resolution display can be realized without the purchase of expensive fusion controller.
The seamless Switch quick switching and fade-in fade-out effects are provided to enhance and present demonstration pictures of professional quality.
Internal Test Patterns for Calibration and Setup
A number of test patterns are provided, including square, color bar, gray-scale, alternating pixel, white field, red, green, and blue test patterns.
Picture-in-picture Any Size Any Position
The position, size, transparency, border width, color, order,etc. of picture-in-picture can be adjusted and controlled at will.
Broadcast Quality Image Scaling Engine
The Video Processor adopts the high performance 30-bit Faroudja® DCDI image scaling engine for up or down the resolution conversion of signals with various resolutions, and is
equipped with the professional ACC and ACM video processing engine to give you completely new visual enjoyment.
More Input/Output Interfaces
The Video Processor has 6 video input interfaces and 2 video output interfaces, covering the currently most common video interfaces and SDI high definition camera interface.
Convenient Panel Keys
A visual LCD interface and clear keypad backlight simplify the installation and control of the system.
Ports and Specifications
Ports are the important parameters the user should understand before the installation.
By understanding the ports, the user can install and set up the device rapidly and avoid problems. The following are the definitions and specifications of the ports on the back of the video processor.
Power supply input
AC power supply interface, for 100V~240V power supply input
AUDIO INPUT Audio input Analog audio input
Analog audio output
Can set up with SDI module or USB module
Composite video input
VESA standard, PC to 1920x1200, HD to 1080p
1Vpp±3db (0.7V Video+0.3v Sync ) 75 ohm
480i/p, 576i/p, 720p, 1080i/p, support 8-, 10-, and
12-bit color depth
VESA standard, PC to [email protected]
PC control or software update
Positions for installing 1 LED sending cards
Positions for installing 1 LED sending cards
Parameters of the Machine
(1U high, width of the full rack) (The depth does not include the connector and handle. The width does not include the rack lug. The width is
48.3cm for a rack with lug.)
100VAC – 240VAC 50/60Hz
Note: Specifications are subject to change without notice.
Before the installation, please check whether the installation components are complete and carefully read the Safety Precautions and the Ports and Specifications.
Humanized treatment is used for the ports of the video processor, with a box indicating the input ports and a box indicating the output ports. In an engineering program, try to use HD interfaces, such as HDMI, DVI, or SDI. The figure below shows the common installation programs.
Installation of LED Transmission Card
1. Remove the upper cover and then the baffle of the case and install the fixing bolts at the corresponding positions so as to install the transmission card of the corresponding brand.
2. Install the LED transmission card, fix it with the 4 screws supplied, tighten the hexagonal bolt of the DVI interface, and insert the 4PIN, 5V power cable into the power socket of the transmission card, as shown in the figure. When the transmission card is installed, install the baffle of the case.
The Front Panel of the video processor uses a friendly human machine interface and clear and simple LCD menu displaying. The default menu displays the operation modes of the video processor for you, and you can use the main menu to set detailed parameters.
The panel provides the most frequently used shortcut keys with LED indicator inside
(except menu operation keys) to indicate the operation mode of the current function.
Among the input shortcut keys of “INPUT SELECTION”, press a key, and two indication modes may occur. When the indicator is flashing, it indicates there is no signal or no signal connection is detected; when the indicator is lit up, it indicates the signal connection is normal.
The following figure shows the Front Panel:
Used to display the menu and current information.
Main menu or exit. In the main menu mode, when it is pressed, the system will return to the previous menu.
In the Default menu, the input VGA video displaying can be positioned automatically.
Down operation key
In the Default menu, the brightness of videos output can be adjusted. Left: -; right: +
In the function menu, the various parameters can be adjusted. Left: -; right: +
Main channel signal selection shortcut key (5 video interfaces and
2 audio interfaces)
HDMI and SDI decode sound output.
TEST Outputs test pattern
Outputs black screen
Select external audio or sound for various video channels
Saves or calls out the scenario modes, including signal channel mode, video quality setup, etc.
Full video displaying
Multi-device splicing, partial video displaying
Picture-in-picture, Keying. The set PIP or Keying parameters are invoked for displaying. Press the PIP key repeatedly to disable or enable the PIP function. When the TEST and BLACK functions are activated, the PIP function can’t be used. When the PIP function is activated, the CUT and FADE functions can’t be used.
Seamless switching. When the main channel is
CUT switched, the video will not interlace or flash.
When the PIP function is enabled, the CUT function can’t be used.
Video fade-in fade-out. When the main channel is switched, the video fades in or fades out.
When the PIP function is enabled, the FADE function can’t be used.
Use the LCD menu system to set the device quickly and intuitively, thus meets your use requirements.
When you do not operate or your operation is time-out, the LCD will display the default menu. If you use the keys on the Front Panel to set the device, the LCD will display the corresponding menu according to your operation in order to prompt you and in order for better, quicker and more intuitive operation.
The menu system of the video processor will be described in details below by combining the displaying on the LCD and the keys on the panel.
After the device powered on, the LCD will display the current state of the device, as shown in the figure:
SDI OFF OFF
The meanings of the contents of the figure are as follows:
The main channel is VGA; the luma is 50.
Crop mode; input resolution [email protected]
The PIP channel is SDI; the PIP mode is “OFF”.Audio output is”OFF’.
Multi-device interconnection mode; output resolution [email protected]
In the default menu, the LCD displays the icons of the various functions. The meanings of the icons are described in the table below:
Main channel input
Indicates the information and mode of the current main channel input.
Indicates the information and mode of the current output channel.
PIP channel input mark
Full video output
Indicates the current brightness
The signal full output is enabled. (Same as the “FULL” key)
The video Crop mode is enabled.
Indicates the current mode is PIP mode.
The Keying Mode is enabled.
Line feed connection
Line feed mark
Next level menu connection symbol
The Multi-device interconnection mode is enabled.
Single machine mode
Indicates the current mode is single machine mode.
Used to indicate the current audio channel mode.
When you press the “EXIT/MENU” key, the video processor will enter the main menu mode and the LCD will display the following screen. Use the “EXIT/MENU”,
“ AUTO”, “ ”, “ options.
”, “ ” and “ENTER” keys to select and adjust the various
IMGE CAP OUT
PIP FUNC ADV
Structure of Main Menu
Image Mode, Brightness, Contrast, Color, Sharpness, Color
TEMP, User CT, Gamma, Contrast PT,ACM Manage,
Motion Mode, BLK Extend, DNR, MPEG NR, Film Mode,
H Total, V Total, H Start, V Start, V-Wall
Resolution, Width, Height, H Start, V Start, Reset
Input, Frame Color, Frame Size, Blender,
H Start, V Start, Width,Height,Reset
Input , Chroma Key
Language, Timeout, Preset, Test PAT, Seamless, Fade Time
Color Temp, Red, Green, Blue, Cutoff
Red, Cutoff Green, Cutoff Blue, Reset
Auto Adjust, H Position, V Position, H
Clock, Clock Phase, WXGA Mode, Reset
Device No., Multi-Device, RGB Range, Keypad Lock, System
Info, Reset All
The menu is operated in a fixed mode, as shown in the table below
Open main menu
Exit main menu
In the default menu, press the “EXIT/MENU” key.
Press the “EXIT/MENU” key.
Press the “ AUTO” or “ ” key.
Enter next level menu
Execute function specific
Confirm operation an
Press the “ ”、“ ” key.
When “→” appears on the right of the option, press the “ ” or
Press the “ ” or “ENTER” key.
Press the “ENTER” key.
Through the critical function description, you can configure the video processor quickly to complete the installation and debugging. Before setting the various functions, check that the device has been correctly connected and the signal input is normal.
Output Resolution Setup
When the device is installed, you need to set the output resolution of the processor according to the resolution of the LED wall, which can be completed through the “Output” setup of the main menu.
In the default menu, press the “EXIT/MENU” key to enter the main menu, select “OUT”
→ “Resolution” → Resolution, select the appropriate resolution, and press the “ENTER” key.
The fusion function is a solution used to solve the restriction of a single video processor’s being unable to drive an ultra big LED. The ways of fusion are flexible. The fusion function can be applied in various LED fusion systems.
The Crop function uses one input signal splicing unit, that is, a channel can use a signal source only (signal loop out or signal distribution input may be used), and outputs video on the LED wall after processing. Take the DVI input splicing as an example, the connection method is shown in the figure:
After the device is connected, set the corresponding output resolution and Crop method according to the LED wall.
Set output resolution: On the main menu, select “Output” → “Output Resolution”
→ Resolution, select the appropriate resolution, and press the “ENTER” key.
Set Crop method: On the main menu, select “CAP” → “Crop”, set the horizontal/vertical size and start position, and press the “ENTER” key. Refer to the figure when making the setup.
Example of Crop parameters:
Horizontal Total Pixels
Vertical Total Pixels =
Horizontal Start = 0
Vertical Start = 0
Horizontal Total Pixels
Vertical Total Pixels =
Horizontal Start =1 024
Vertical Start = 0
Horizontal Total Pixels
Vertical Total Pixels =
Horizontal Start = 2048
Vertical Start = 0
Processor 1 Processor 2 Processor 3
The above example shows that the “H Total” is the sum of the horizontal pixels of the various LED walls; the “V Total” is the sum of the vertical pixels of the various LED walls; these two parameters are the same in the various processors. The Horizontal Total
Pixels and Vertical Total Pixels form a coordinate plane with pixel as scale. The processor sets the desired parameters “H Start” and “V Start” according to the coordinate plane.
The PIP function includes the Picture-in-Picture mode and KEY mode. When the function is turned on, the “Seamless Switching” function will be turned off automatically.
The PIP mode is Picture-in-Picture that uses the digital technology to display two programs on the same screen, that is, on the main screen being watched normally, one or more compressed sub-screens are inserted, so that the user can monitor other channels while watching the main screen. In the PIP mode, the user needs to provide at least two channels of signal input and set the PIP menu accordingly. Before using the PIP function, the user should understand the Source Input Conflict List.
Source Input Conflict List
DVI HDMI SDI
√ √ √
The example of detailed PIP parameter setup is as follows:
Enter PIP menu: In the main menu, select “PIP” → “PIP Mode” → Parameter Setup and set the parameters of the PIP mode.
Note: To select the input signal channel of PIP, you must select in the “PIP Mode” menu.
There is no shortcut key.
Horizontal Start 364
Vertical Start 250
Horizontal Width 480
Vertical Height 320
Keying is the extension of the PIP function. It is realized by reducing the specified colors from the picture colors of the PIP channel input. The Keying function can be used in some simple special effect processing and caption adding. The setup operation is simple.
Refer to the setup example:
Enter the Keying menu: In the main menu, select “PIP” → “Keying” → Parameter
Setup, set the “Input” to “VGA” and the “Chroma Key” to “Black”. Tip: Here, the
“Chroma Key” refers to the colors extracted, including blue, green, red, and black.
PIP Channel + Main Picture Channel =
The above figure shows that the PIP channel input is a picture of white text in the blue background, and when the two pictures are overlaid and the blue color is removed, the caption effect is realized.
The Seamless Switch is an effect realized when the main channel is switched. This effect allows the audience to watch pictures smoothly and comfortably when watching video being switched. When the PIP function is activated, the picture switching effect function can’t be used. To use this function, disable the PIP function first. (The PIP function can be disabled in the main menu or with the “PIP” shortcut key.)
Seamless Switch has two effects, i.e. “CUT” and “FADE”. “CUT” is instant Seamless, and “FADE” is fade-in fade-out. The time of fade-in fade-out can be set in the main menu, select “FUNC” → “Fade Time” → Parameter Setup.
After the LED wall is installed, you may need to use the test pattern to inspect whether the LED wall is normal. The video processor provides a number of test patterns for you to test whether the LED wall has any defective pixel or blind spot and whether the
LED wall lattice is aligned. You may make adjustment through the following operations.
test pattern output: On the Front Panel, press “TEST” to output the current pattern; press
“TEST” again and use the direction keys to select different test pattern.
In the preset mode, you can quickly invoke various frequently used application scenarios during use to reduce repeated, complex setup, thus improves the efficiency of operations. Each preset mode includes such parameters as signal channel mode, displaying
mode, picture quality setup, etc. The saving and invocation of the preset mode are described below.
Saving of preset mode: In the main menu, select “FUNC” → “Preset” → “Save
Mode”, select any set of preset settings, and press “ENTER” to save it. Up to 4 sets of preset settings can be saved.
Invocation of preset mode: On the Front Panel, press “PRESET”, use the direction keys to select a set of preset settings, and press the “ENTER” key to confirm the selection.
The Video Processor has 3-channel audio switching, including external audio, HDMI audio, and SDI audio. The processor can realize 3 audio switching modes, i.e. Fixed
External Input, Sound Channel Following, and Audio Off. Press the “AUDIO” key repeatedly to switch between these 3 modes.
Fixed External Input: The audio connection is in the External Sound Channel Input mode, and the video is switched without changing the sound channel.
Sound Channel Following: When the video is switched to HDMI, the sound channel outputs HDMI audio; when the video is switched to SDI, the sound channel outputs SDI audio; when the video is switched to V, VGA or DVI, the sound channel outputs external audio.
Audio Off: Press the “AUDIO” key repeatedly to turn off audio output, and the LCD will prompt the user of the mode of the audio.
Problems may occur during installation or use. The user can try to troubleshoot the device through the following steps. If the problem still cannot be solved, the user can contact the local dealer.
The device has no signal, and the indicator is not lit up.
Check whether the power plug is in bad contact.
Check whether the power switch is turned on.
The LCD on the Front
Panel displays contents, but no signal.
Check whether the signal cable is connected correctly.
Check whether the device supports the resolution and refresh frequency.
Make factory reset.
The VGA input signal can't be displayed on the display normally, and the video can’t be displayed on the full screen or is blurred.
When the DVI\HDMI signal of a desktop or notebook is connected, the picture output is not
This can be solved through automatic positioning of VGA input signal. When the current input source of the video processor sends effective VGA input signals, press the “AUTO” key, and the video processor will position the sampling parameter of
VGA input signals automatically to make the VGA video clear and complete.
The operation is usually conducted only when a new VGA signal source is connected. Sometimes, the automatic positioning should be conducted several times till the output video is clear, complete, and stable.
Change the zoom option of the output of the video card
DVI/HDMI, and set it to zoom to realize full screen output.
displayed on the full screen.
Video are not displayed normally.
The displaying of PIP is abnormal.
The Seamless Switch function does not work.
Check whether the resolution and refresh rate input are compliant.
Check whether the PIP parameters are set correctly and reasonably.
Check whether the current mode is PIP mode. Disable the PIP function.
Check whether the input sound is normal, whether the system is switched to the current sound channel, and whether the audio amplifier is normal.
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