User Manual

T7H Sender

User manual



User Manual





Product introduction ..............................................................






Hardware Connection Diagram ..............................................



Operating Environment ..........................................................



Parameter Configuration ......................................................


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User Manual

I.Product introduction

T7H sender is the most commonly used synchronous system sender, it is

adopted the dual-USB interfaces to realize high-speed communication with PC and

easy cascading between sender cards.

It supports wide working voltage with AC 100~240V and has good stability and compatibility with all Colorlight’s control cards.

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2.2.1 Interface functions















Power switch

Power on /off











Power supply

AC power supply interface



















Cascade output

For output cascade signal to the next T7H









Cascade input

For input cascade signal from the last T7H










Indicator lamp

Indicate sender working state


Red for power



green for signal














Output port A

RJ45connect to the receiver card


The control









area of port A








Output port B

RJ45connect to the receiver card


and B can be









separately set









Audio input

transmit the audio signal to the multifunction card



card needed









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For T7H and PC communication










DVI signal input









Digital tube

Show the brightness adjustment levels of the
















Selection bottom

Used for brightness adjustment



and assisted selection











2.1.2 Indicator Light functions

Red: ON for power available

Green: ON/OFF quick flash (about 5-10 times/second) indicates that the data signal transmission is normal.

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III.Hardware Connection Diagram

USB cable


DVI cable

Ethernet cable


Receiver card

LED display


1Support AC 100-240V (50Hz-60Hz) power supply The red indicator Light: ON for power available

2HDMI/DVI connection

T7H has HDMI and DVI two video input interface, choose any one of them to input video according actual. If you need to switch video input mode between HDMI and DVI signal, can use HDMI and DVI cable to connect the computer and T7H at the same time.

3Control signal connect

Connecting the computer and the T7H with dual-USB cable, this will be used for configuration of T7H

4Ethernet Cable

Connect receiver cards and T7H by using Ethernet cable (Note: The Ethernet cable must be CAT5E or CAT6)

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IV. Operating Environment

4.1Computer configurations

CPU Frequency >= 2.0GHZ;

Host Memory >= 1G;

Graphic card with DVI interface: Memory ≥512MB.

Computer configuration can be adjusted according to the actual situation. Adjustment mainly aims at total pixels of LED display, complex playing program and whether playing HD video or not. Please note that the PC’s graphic resolution should be equal to or more than LED display’s.

4.2 USB driver installation

There are two methods for installation USB driver.

Check ‘USB Drive For Sending Card’ when install the LEDVISION, as you can see in following picture.


Open the CD-ROM, find the file name of "USB driver for sending card" and

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double click it to install.

4.3Graphics Card Settings

Select duplicate or extend in graphics card mode, and their difference is that led

display show the contents consistent with computer in duplicate mode, while in extend

mode show only the window you want to display. (As shown in Fig.4-2)


How to change the mode, there have different ways in different computer. For example, WIN 7/8 system and NVIDIA graphics cards, please read the following settings ways.

The first way: Hold down the WIN and P keys at once, and select the mode as you want in the pop-up window


The second way: Right-click and select “screen resolution” to enter the page of “modify the display appearance”; if your graphics card is not NVIDIA and cannot find the setting interface please refer to the description of the graphics card.

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V.Parameter Configuration

First of all, please make sure the software is in Classic Mode before setting.

Click the “Setting” > “Software Setting” to enter the Software Management window

(As shown in Fig.5-1), change the mode by using password: 168.


5.1 Hardware Connection Check

Please make sure that the hardware connection correct and software in Classic Mode before setting.

5.1.1 Detect Sender Cards

Run software, click the “Control” > “Screen Management” to enter the Screen

Management window, the Sender Mode select “By Sender Card”, Click “Detect Sender Cards”, the sender cards information will show in the interface, (as shown in Fig.5-2 ) Please check the hardware connection if cannot detect sender cards.

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5.1.2 Detect Receiver Cards

Select network port and click “Detect Receiver Cards”, the software will automatic acquisition the Receiver (Receiving card) quantity for each network port of the sending card. Please check cable if the numbers of receiver card are inconsistent with actual. (As shown in Fig.5-3)

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5.2Setting Parameter

5.2.1Sender Card Setting

Software offers a variety of common resolution to choose and it also can be set up custom. It should be note that the port maximum load capacity is 655360 pixels and the starting position consistent with the actual.

Click “Send” to save the parameter in receiving cards.

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5.2.2 High Setting

In Screen Management interface, click “High Setting” to enter the High Setting-Send Card interface, the parameter can be set up according to your demand.

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In general, users only need to set up the sender card resolution and network port control area in so many parameters.

Sender Card Resolution: Send card resolution must be consistent with the graphics card or video processor output.

Network Date Types: The software default is “Standard Frame”; please consult professional and technical personnel if you want changing.

Adjust Brightness Based on Multi-function: Check it if you need multifunction’s light sensor automatically adjusts the LED screen’s brightness.

DVI Information: The parameters automatically collect by the software from the sender card.

Could By Pass Switch: When the gigabit switches as transfer equipment, then required checking this

Output Frame Rate: the software default is “Every Frame”, please consult professional and technical personnel if you want change to “Every Other Frame”

Forbid output video and audio when no signal: After check this item, the LED display will turn black and no sound output when no video signal input.

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5.2.3 Receiver card parameters setting

Click “Configure Select One...” to enter LED setting interface by using password 168.


Need to debug of common parameters

Serial clockControl the serial clock frequency of the driver chip on the display pane. In general, the value set up to 17.9MHz if the LED display is full color.

Gray LevelSupport arbitrary adjustment from 0~65536 level gray. Indoor full color LED display adopt 4096 level gray

Scan MethodThe method of high refresh frequency 2 means that scan gray firstly, the refresh rate is 8 times compared with normal method, which can satisfy the customs high refresh requirement.

Gamma valueGamma value is a key parameter for the LED display; it will affect the display effect. Gamma value set up from 2.2 to 2.8 in generally.

Blanking valueWe can appropriate to increase the blanking value when the LED display screen appears trailing.

5.2.4 Connection Parameters (Look From Front)

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In Classic Mode, LED screen need set up the Receiver (Receiving card) connection relationship for each network port of the sending card.

1) Receiver Lay out Setting

Set how many Receiver (Receiving card) one port managers in Row Count and Col Count (3*3 as an example), how many pixels one Receiver (Receiving card) manages in Width and Height (64*64 as an example), in the software interface right you will see led display mapping area (Viewing from the front of led display). (As shown in Fig.5-7)


2)Receiver Card Parameters Setting

Configuration Receiver (Receiving Card) connection pattern for each port individually if more than one port are used. There are two methods to set up.

Note: Set up connection Receiver (Receiving Card) must be based on fact.

Use Mouse Select One By One

Based on the actual connection of the Ethernet cable, click the Receiver (Receiving card) one by one until the last one for this network port loads, connection lines will show in the display mapping area (Viewing from the front of led display) (As shown in 5-8)

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Connection Pattern

Select the connection pattern based on fact, and then the connection line will show Receiver (Receiving card) in the display mapping area. (As shown in 5-9)


If some Receiver (Receiving card) manage different quantity of pixels from others, specific Receiver (Receiving card) Size in Width and Height can be set individually.

3) Save to Receiver Cards & Save to Sender Cards

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The first step: Click “Save to Sender Cards” > select port, then send the parameter to sender card

The second step: Click “Save to Receiver Cards” > select port, to send the parameter to receiver cards of this port load, at this moment, this port load all cabinets should display normally (the picture between cabinets is not continuous but also as normal)

The third step: Set up the next port load receiving cards parameter and connection type.

Please contact display manufacturer of engineering and technical personnel if display abnormally.

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