LedSync820H
LED HD Video Processor
USER’S MANUAL
LedSync820H User’s Manual
TABLE OF CONTENTS
precautions
3
II.
Packing
4
III. Connections of hardware
1. Rear view 5
2. Port description 5
3. Connection diagram 6
IV. Frontal panel operations
1. Diagram of frontal panel 7
2. Button instructions (operation mode) 8
V. Setup
1. Enter setup of LedSync820H 12
2. Select language 12
3. Output image setup 13
4. Color / Sharpness 14
5. PIP setup 15
6. Audio configurations 18
7. Factory district setup 19
Specifications
27
VII．
Copyright info
………………………………………………………….42
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I. Safety Precautions
Danger!
There is high voltage in the processor, to prevent any unexpected hazard, unless you are maintenance, please do not open the cover of the device.
Warning!
1. This device shall not encounter water sprinkle or splash, please do not place anything containing water on this device.
2. To prevent fire, keep this device far from any fire source.
3. If this device gives out any strange noise, smoke or smell, please immediately unplug the power cord from receptacle, and contact local dealer.
4. Please do not plug or unplug DVI signal cable if the device is powered on.
Caution!
1. Please thoroughly read this manual before using this device, and keep it well for future reference.
2. In the event of lighting or when you are not going to use the device for a long time, please pull the power plug out of receptacle.
3. Nobody other than professional technicians can operate the device, unless they have been appropriately trained or under guidance of technicians.
4. To prevent equipment damage or electric shock, please don’t fill in anything in the vent of the device.
5. Do not place the device near any water source or anywhere damp.
6. Do not place the device near any radiator or anywhere under high temperature.
7. To prevent rupture or damage of power cords, please handle and keep them properly.
8. Please immediately unplug power cord and have the device repaired, when
1) Liquid splashes to the device.
2) The device is dropped down or cabinet is damaged.
3) Obvious malpractice is found or performance degrades.
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II. Packing list
Please unpack the product with care, then check whether all the following things are included in the package. If anything is found missing, please contact the dealer.
Standard accessories
The accessories supplied with this LED Video Processor may differ from the figures contained in the User’s Manual, but they are applicable for the regions where you live.
User’s Manual Power cord (1.5m)1pcs
DVI cable (1.5m), 1pcs User manual CD
USB cable (1.5m) BNC-RCA adapter, 2 pcs PCB Connector (Audio)
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III. Connections of hardware
1. Rear view
1
6
2 3 4 5
Figure 1
① AC power jack & on/off key ② Audio input and output ports
③
RS232/USB input ports ④ Signal input ports
⑤ VGA/DVI output ports ⑥ LED sending cards inside（optional）
2. Port description
1） Video Input
LedSync820H
supports 4-channel signal input, including:
Port name Description
V1, V2
2-channel PAL/NTSC composite video input
VGA
1-channel computer analog signal input
DVI/HDMI
1-channel DVI/ HDMI digital signal input
2） Audio Input
LedSync820H
supports 3-channel stereo audio switch. among which, 1 channel is DVI/HDMI audio, the other 2 channels are AD1,
AD2 external input audio. AD1 and AD2 can be mapped to anyone of the video inputs, and will be switched synchronous to the audio of corresponding video input signals.
3） Video Output
Port
VGA OUT
Description
1-channel analog RGBHV signal output, it can be connected to a local display device and used as monitor (it is strongly
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DVI OUT1 /
DVI OUT2
recommended to use this port when operating and setting LedSync820H).
2 same DVI digital graphic signal output, it can be connected with external LED transmission card or LED transmission box
4） Audio Output (AUDIO OUT)
Corresponds to the selected video input signal, output this channel audio input signals.
5） Signals of other ports
RS232/USB input ports are used to connect PC. Then the
Upper Controller can operate and control LedSync820H via these communication ports.
3. Connection diagram
Figure 2
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IV. Frontal panel operations
1. Diagram of frontal panel
8
1
2
3
4
5
6
7
Figure 3
1） Input selecting buttons (V1, V2, VGA, DVI):
They are used to select input signals
2） Setup buttons (Setup, knob, Save,
↑,↓)
They are used to set the image output parameters of the processor.
3） Brightness adjustment（Brt+，Brt-）
To adjust the output image brightness of the processor.
4） PIP:
To turn on/off PIP functions, when the indicator is on, you can select another signal or current signal as PIP by using input selecting buttons.
5） PC signal bypass output (Bypass):
It is used to switch full screen/partial screen display of PC signals, and the indicator will indicate the status of current input signal.
6） Cut / Fade switching mode (C/F):
It is used to select signal switching effects, including seamlessly switching
(CUT)， 0.5s, 1.0s and 1.5s Fade in / Fade out and blend.
7） VGA auto adjustment (Auto)
To automatically adjust VGA input signals
8） Info:
It is used to display current settings and information of processor
2. Button instructions (operation mode):
There are 12 buttons on the frontal panel of LedSync820H, all these buttons will be operable after start. they have the following functions as described below:
1) Select input video source
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Port name
V1、V2
Description
2-channel PAL/NTSC composite video input
VGA
DVI/HDMI
1-channel computer analog signal input
1-channel DVI/HDM digital signal input
Switch audio input while operating above buttons; select the audio signal input from corresponding video input to output it through Audio
OUT
.
After selecting input signals, the input signal source you currently selected such as “input=HDMI” will appear in the first line of LCD, while the status of current input signals will appear in the second line of LCD. If there are no valid signals entered, the message “no signal” will appear in LCD, and the corresponding indicator will blink and dark screen appear; if the signal is valid, the format of input signals such as “ 1080p_60Hz ” will appear in LCD.
Input= HDMI
1080p_60Hz
Cut
Figure 4
2) Brightness adjustment (Auto)
Button names Description
Brt-
Decrease output image brightness of
LedSync820H,
the lowest brightness is 0.
Brt+
Increase output image brightness of
LedSync820H,
the highest brightness is 64.
LedSync820H
supports 32 levels Brightness, “0” represents the lowest brightness, and 64 represents the highest brightness.
To ensure full gray level of output image, normally the output brightness is set as 64!
3) VGA input auto adjustment (Auto)
When the current VGA input source of LedSync820H is a valid signal, press this button, LedSync820H will automatically adjust the sampling parameters of the VGA signals, so as to make VGA picture clean and complete.
In general, this operation is made only when new VGA signal source is to be connected in. Sometimes user need repetitively do
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such adjustment till VGA picture looks clean, complete and stable.
4) Information display (Info)
Press this button to view current settings and information of
LedSync820H
, it consists of 21 items. If you press “Info” again before LedSync820H exit information display, LedSync820H will continue to display the next item of information.
5) Select Cut / Fade / Blend mode(C/F)
LedSync820H can realize seamless switching effect (Cut) , fading in/out switching effect (Fade) or blend effect between any two signals.
Cut
(seamlessly switching): while in this mode, “Cut” will appear in the third line of LCD, the system can seamlessly switch between different signals.
Fade
(fading in fading out): while in this mode, “Fade=1.0s” will appear in the third line of LCD, the system can realize fading in fading out switching effect between the signals. Users can set the switching time of fading in and fading out as 0.5 seconds,1.0 second or 1.5 seconds.
Blend:
The current input signal will be the background.
Another signal will be choosed as blend signal. Then the background signal and blend signal will be overlap showed. Then press the button of background or blend signal, the output will be the choosing signal. The whole procedure will be fade in fade out switching effect.
6) PIP
PIP/POP mode of LedSync820H allows user to insert a PIP window in current picture, and the size and location of the current signal and PIP window can be set freely. The signals to be displayed in PIP window can be either current signal itself or any other signals. Here we call current picture “ main picture” , and call the picture to be overlaid “PIP”. The following paragraphs will illustrate the operating procedures of this function:
Enter PIP display mode:
Press PIP button, its indicator will illuminate, LedSync820H will enter PIP display mode, then use button to select PIP input signals, in the meantime, signals of main picture and PIP and their locations will appear in LCD (see Figure below):
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Main=V1
PAL
PIP=VGA
1280X1024 60Hz
Figure 5
Change PIP
: While in PIP mode, use select button to select proper input signals, the signals will be set as PIP.
Change the main picture :
you must first turn off PIP mode.
Press buttons to select appropriate input signal as main picture , then enter PIP mode again, and select a new PIP picture.
7) Part/Full（Bypass）
Press this button to switch between Part / Full display mode.
This function is only available when the current input signal is
PC (VGA / DVI) signal, while other signals can only be displayed in the Full display mode.
Mode Description
Full
Full screen display. Entire picture is compressed to display in LED screen, the moment the indicator above the button is OFF.
Part
Part screen display. The picture will not be compressed, but partly exported to entire LED screen, the moment the indicator above the button is ON.
Caution:
when the width and height of current input signals are less than the width or height of LED display (say the
Out_Hori_width or Out_Vert_height), Part mode will not work.
V. Setup
The following settings must be made by relevant qualified technicians. For ordinary users, unless they have received adequate technical training, they shouldn’t attempt to make the following settings!
There are 7 categories 23 items available for you to set in
LedSync820H
. Technicians can set these items as necessary, for details see the table below:
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Category
1 Language
Items
1 Language 语言
2 Output image setup 2
Out Format
3
Out_Hori_Width
4
Out_ Hori _Start
3 Color
/Definition setup
5 PIP setup
5
Out_Vert_Height
6
Out_Vert_Start
7
Saturation
8
Sharpness
9
Audio1 Config
10 Audio2 Config
11 Main_ Hori_ Width
12 Main_ Hori_Start
13 Main_Vert_ Height
14 Main_Vert_Start
15 PIP_ Hori_Width
16 PIP _Hori_Start
17 PIP _ Vert_Height
18 PIP _Vert_Start
‘7 Factory district setup 20 ADC Calibration
21 Bias
22 De interlace
23 Device init
1. Enter Setup of LedSync820H
Enter setup:
While in operation mode, press “Setup” button, then press the knob(（”Save” key）, LedSync820H will enter No.1 setup item.
Exit setup:
press “Setup” button while in setup mode,
LedSync820H will directly exit setup.
After LedSync820H enters setup mode, the knobs and 3 buttons in setup area will respectively have the functions as described in table below:
Name Functions knob speed of knob
Knob
anticlockwise
Turn it Increase value or select next value
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↑
↓ clockwise
Press it Save the adjustment or selected values
Move to previous item
Move to next item
Enter or exit setup mode
Setup
After LedSync820H enters setup mode, the relevant setting information will be displayed in LCD as per the layout shown in the figure below:
1
6 ：
Out_Vert_Start
200 ？
2
3 4
Figure 6
As shown in above figure, LCD consists of five sectors:
Sector Description
1 The No. of current setting item
2
？
: ask you whether to save the adjustment； ！: The adjustment already be saved and takes effect.
3
4
Newly adjusted value
Name of current setting item
2. Select language
Item 1: “Language
语言
”
After entering setting mode, LedSync820H will enter the first setting item “Language 语言 ”. LedSync820H supports Chinese and
English display, turn the knob to select either of them, then press the knob to save it and make it valid.
3. Output image setup
LedSync820H
outputs images from VGA and two DVI output ports.
There are 9 output formats as listed in the table below. User can enter the
No.2 setting item “Out Format” to select one of them.
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Format
1 1024×768_60
2 1024×768_75
3 1280×1024_60
4 1280×1024_75
5 1600×1200_60
6 1920×1080_50
7 1920×1080_60
8 1366×768_60
9 1440×900_60
Item 2: “Out Format”
In this item, turn the knob to select either of them, then press the knob to save it and make it valid.
For example, if you select “1280×1024_60”, it means that the output definition of LedSync820H has been set as 1280×1024, and vertical refresh rate is 60Hz.
Please select the output definition equal to or greater than the actual definition of LED screen.
Items 3~6：“Output image setup”
The actual definition of LED can be any value, so we should set
LedSync820H to make it output an image with the same definitions as that of the LED, so that the LED could display a full image. See figure below:
（0，0）
Out_Hori_Start
Out_Hori_Wi Out_Vert_Start
LedSync820H Out Image Area
LED Dispaly Screen
Out_Vert_Height
LedSync820H Out Format =
1920×1080
1920
As above figure shows: the size and location of the images in
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LedSync820H
output window for the LED display are defined by the following 4 groups of parameters:
Item No. Parameters
3
Out_Hori_Width
4
Out_ Hori _Start
5
Out_ Vert_Height
6
Out_Vert_Start
Notes:
user can change current parameter settings by rotating the knob. The speed at which you rotate the knob decides the step value of the adjustment. The location and size of the output image will be previewed in the white box while you are making the adjustment, then you can press the knob to save and validate the settings you made.
4. Situration/ Sharpness
LedSync820H
supports customized color Saturation and
Sharpness settings. For details see table below:
Item No. Description Definition
7
8
Saturation
Sharpness
Range: 0~100, default value: 50
Option is “Sharp” or “Normal”, default value: Normal
Caution: (1). In order to ensure output images in complete gray, the output parameters are usually set as default values ！
(2). The color parameters only apply to V1、V2 and HDMI signals.
5. Audio configurations
LedSync820H supports 3-channel dual-track audio switching.
In the three channels, 1 channel is DVI/HDMI(only for HDMI input), the other 2 channels are AD1, AD2 external input audio. AD1 and
AD2 can be respectively allocated to corresponding audio input of any input, and will be switched with the change of video input signals in synchrony.
If DVI/HDMI is configured as external input audio, when audio signal is switched to DVI/HDMI, external audio will be chosen as input signals, otherwise the audio signals contained in
DVI/HDMI signals（only for HDMI input） will be chosen as input signals.
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Item
No.
9
Description Definition
Audio1 Config Audio configuration option for
AD1 port
10
Audio2 Config Audio configuration option for
AD2 port
Notes:
AD1, AD2 can’t be allocated to the video input
signals in the same channel!
6.PIP Setup
（0，0）
PIP_Hori_Start PIP_Width
PIP_Vert_Start
Main _Vert_Height
Main_Hori_Start
PIP_Height
PIP Window
Main window Main_Vert_Height
LVP605Out Format =
1920×1080
Main_Hori_Width
1920
As above figure shows: the size and location of the images in
LedSync820H background and PIP
output window for the LED display are defined by the following 8 groups of parameters:
Item
11
Description
Figure 5
Main_ Hori_Width
12
Main_ Hori_Start
13
14
15
Main_Vert_Height
Main_Vert_Start
PIP_ Hori_Width
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16
17
PIP _ Hori_Start
PIP _Vert_Height
18
PIP _Vert_Start
Operating procedures:
Switch adjustment items:
press ” ↑” and ” ↓” to switch current adjustment items.
Change output parameters:
user can change current parameter settings by rotating the knob. The speed at which you rotate the knob decides the step value of the adjustment. The locations of the background and PIP will be previewed respectively in the white rectangle and blue rectangle while you are making the adjustment, then you can press the knob to save and validate the settings you made.
7. Communication setup
Upper Controller can operate and control LedSync820H via RS232 or USB port.
This item is used to choose the communication port as
RS232 or USB .
Item Description
19
Control Method
8. Factory district setup
The following are factory district setups, users are recommended to make these setups under the guidance of manufacturer’s technicians, any improper setting or operation may result in abnormal happening to the processor.
Item 20: “ADC Calibration”
After inputting a analog signal to the video processor whose white balance has not been calibrated, the picture on the display may appear some bad phenomena, such as color cast, extreme-darkness.
LedSync820H
can solve the above problems by automatically calibrating white balance based on the input analog signals（CVBS、
VGA）
. Operating procedures:
Switch to the corresponding analog input signal, enter Item No.
19“Control Method” after the processor detects input signals and
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exports the signals to the display, press “V1” for 5 times to enter the
Item 20 “ADC Calibration”, press knob to calibrate white balance.
Caution: The white balance of all video processors has been
calibrated using standard signals in the factory, please don’t set this item unless necessary!
Item 21: “Bias”
In order to decrease the noise on gray scale display, the LED display system usually removes the lower gray scale one of all input signals, which will cause the lose of the video information, especially in dark scene ,such as night view.
LedSync820H can improve problems as follow mentioned by adjusting the “ Bias”, whose limit ranging from 0 to 100. When losing the signal of dark scene, you can restore the drop-out information to the LED display by increasing the value.
Normally in order to keep the completeness of output signals, the standard value is set as 50!
Item 22: “De interlace”
When CVBS /HDMI signals are interlace input formats (e.g.: 1080i) and used as PIP, due to limits of the processor, tremble may take place, it can be dispelled by setting the option “De interlace”. Operating procedures: enter Item No. 19 “Control Method”, press “V1” for 5 times, then press “↑” to shift to Item 22 “De interlace”, turn knob to select “ON”, and press knob to make it valid.
Item 23: “Device Init”
After entering item No. 19“Control Method”, press “V1” for 5 times, then press “↑” to shift to Item 23: “Device Init”, turn knob to select
“Yes”, then press knob to reset the factory settings, the moment the system will remind you “Please restart.”, just follow the instruction.
VI. Specifications
Inputs
Nums/Type 2×Composite
1×VGA（RGBHV）
1×DVI（HDMI）（1.3a with HDCP ）
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Video system
Composite Video
Scope/Impedance
VGA Format
PAL/NTSC
1V（p_p）/ 75Ω
PC（VESA）
≤
2048x1152 @60Hz
VGA Scope/Impedance R、G、B = 0.7 V（p_p）/ 75Ω
DVI /HDMI 1.3 Format
( HDCP )
SD/HD（CEA-861）
≤
1920x1080P @60Hz
PC（VESA）
≤
2048x1152 @60Hz
AUDIO
Scope/Impedance
2.0Vp-p/10KΩ
Input Connectors VGA：15pin D_Sub(Female)
DVI：24+1 DVI_D
Composite：BNC
Outputs
Nums/Type 1×VGA（RGBHV）
2×DVI
VGA/DVI Format 1024×768@60Hz/75Hz
1280×1024@60Hz/75Hz
1600×1200@60Hz
1920×1080p@50Hz/60Hz
1366×768@60Hz
1440×900@60Hz
VGA Scope/Impedance R、G、B = 0.7 V（p_p）/ 75Ω
Output Connectors VGA OUT：15pin D_Sub(Female)
DVI OUT1：24+5 DVI_I
DVI OUT2：24+1 DVI_D
Others
Power
Operating Temp
100-240VAC 35W 50/60Hz
5-40 ℃
Humidity 15-85%
Dimensions（Package） 145 mm (height) ×370mm (width) ×535mm
(length)
Weight（N.W.） 3.2Kg
Dimensions：
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VII. Copyright info
The copyright of this Manual is owned by SHENZHEN VDWALL
CO.,LTD., unless with prior consent of VDWALL, nobody is permitted to copy or use any part or all of the information contained herein.
This Manual is provided for reference only, VDWALL reserves right to change the product appearance, dimensions and specifications from time to time without notice to users.
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