Leyard TWF Series User manual

LED Display Construction Acceptance
Specification
User Manual
Date: April 2017
TWF Series LED Display Unit

LED Display Construction Acceptance
Specification
Copyright Statement
Copyright ©
Leyard Optoelectronic Co Ltd. is the legal copyright owner of this document.
Without Leyard’s prior permission, any other person or organization shall
notextract, reprint, copy, translate, edit, publish or savethe whole or any part of
it into a retrieval system or use it in any other place in any form.
The manual will be subject to modification anytime without notification.

LED Display Construction Acceptance
Specification
Safety Tips
1.Please read these safety tips carefully before installation.
2.Keep these safety tips properly;
3.Comply with all these safety tips;
4.Do not install the apparatus in dusty or liquid dripping environment, and this
requirement is especially applicable to the indoor displays;
5.Do not expose the indoor display and apparatus to water or mist;
6.Do not install the apparatus near any heat source, where the heat sources include:
heater assembly, radiator, electric stove, furnace and other devices that can
generate a large amount of heat(including amplifier) ;
7.Do not block any ventilation hole. Install the apparatus according to the
manufacturer's instructions;
8.Protect the power cord and related electrical facilities, especially the power plug,
simple power outlet, and connections between the power cord and the apparatus.
Do not trample or squeeze the facilities listed above;
9.Only use the electrical accessories accepted by the apparatus manufacturer;
10.Only the qualified professional technicians are allowed to perform maintenance
and service of the apparatus in case of the following conditions: the power cord
or the power plug is damaged; any liquid enters the apparatus; a foreign matter
falls into the apparatus; the apparatus is exposed to water or mist; the apparatus
fails or the apparatus falls down, etc.;
11.Do not use any chemical solvent to clean the apparatus;
12.If the product is installed upon restricted production, an additional grounding wire
needs to be installed securely.
13.Environment requirements: altitude ≤ 2000m; maximum working temperature:
40 ℃; maximum working humidity:80%;
14.The apparatus power may be cut off by unplugging the coupler.
15.The apparatus is not equipped with a plug. During installation, a circuit breaker or
power switch controlling the main power of the whole apparatus needs to be
provided in a place easy to access near the apparatus, and the ratings of the circuit
breaker or the switch should be provided as well (250VAC, 16A or better
recommended);
16.Do not place any exposed fire source (such as candle) on the apparatus. If the

LED Display Construction Acceptance
Specification
working temperature of the apparatus exceeds 40 ℃, it is necessary to use air
conditioning for ventilation and heat dissipation, so as to ensure the working
temperature range is consistent with the required value.
17.The apparatus should be connected to a power grid with a protective earth
connection;
18.Grounding conductor size1.5mm²;
19.To prevent injury, this apparatus must be securely attached to the floor/wall in
accordance with the installation instructions.
20.When the input voltage is 110 VAC, it can be connected to 8 cabinets in cascade;
and when the input voltage is 220 VAC, it can be connected 16 cabinets in
cascade;
Warning
This is a class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his
own expense.

LED Display Construction Acceptance
Specification
Revision History
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User Manual for TWF Series LED Unit
Contents
Chapter 1TWF Series LED Unit ............................................................................................. 3
I. OVERVIEW..........................................................................................................................................3
II. APPEARANCE OF DISPLAY UNIT .........................................................................................................3
IIITECHNICAL PARAMETER TABLE.............................................................................................................4
Chapter 2 Installation ............................................................................................................ 6
I. DIMENSIONAL FIGURE OF PRODUCT...................................................................................................6
1. Dimensional Figure of Display Unit.............................................................................................................. 6
2. Dimensional Figure of Installation Structure................................................................................................. 6
II. DISPLAY UNIT AND INSTALLATION STRUCTURE..................................................................................9
III. ADJUSTABLE MECHANISM............................................................................................................12
1. Installation of Adjustable Mechanism ......................................................................................................... 12
2. Structure Adjustment of Display Unit ......................................................................................................... 14
3. Assembly and Removal of Display Unit ..................................................................................................... 14
IV. INSTALLATION ..............................................................................................................................15
1. Necessary Tools........................................................................................................................................... 15
2. Installation procedures ................................................................................................................................ 15
Chapter 3Control System ..................................................................................................... 18
I. INTRODUCTION OF PRODUCT............................................................................................................18
1. Main Components of TWF Series Display Unit.......................................................................................... 18
2. Controller .................................................................................................................................................... 19
3. LED Module................................................................................................................................................ 20
4. Cascade Power Supply and Signal Board of LED Module.......................................................................... 21
5. Cascade HDMI Signal Line of Display Unit............................................................................................... 21
6. Cascade RJ25 Serial Line of Display Unit .................................................................................................. 21
II. SPLICING MODE AND WIRING DIAGRAM..........................................................................................22
1. Splicing Mode of Display Unit.................................................................................................................... 22
2. Three Connection Modes of RJ25 Cable..................................................................................................... 22
3. Connection of Power Cord.......................................................................................................................... 23
4. Close Control Wiring Diagram.................................................................................................................... 23
5. Remote Control Wiring Diagram ................................................................................................................. 24
III. COMMON FAULTS AND TROUBLESHOOTING MEASURES ...............................................................25
Chapter IV Control Software............................................................................................. 27
I. OVERVIEW........................................................................................................................................27

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User Manual for TWF Series LED Unit
1. Introduction................................................................................................................................................. 27
1. Operating Environment............................................................................................................................... 27
II. SOFTWARE INSTALLATION AND UNINSTALLATION ............................................................................27
1. Installation................................................................................................................................................... 27
2. Uninstallation.............................................................................................................................................. 30
III. SOFTWARE INTERFACE .................................................................................................................32
IV. GUIDELINES FOR OPERATION OF SOFTWARE.................................................................................33
1. Communication Settings ............................................................................................................................. 34
2. Basic Controls .............................................................................................................................................. 36
3. Advanced Controls...................................................................................................................................... 37
4. Setup............................................................................................................................................................ 37
5. Seam Correction.......................................................................................................................................... 38
6. Factory Settings........................................................................................................................................... 40
Chapter V Firmware Download........................................................................................ 42
I. MCU DOWNLOAD............................................................................................................................42
1. Programs and download cables to be used .................................................................................................. 42
2. Installation of Download Cable Driver........................................................................................................ 43
3. Installation of Download Software LM Flash Programmer......................................................................... 49
4. LM Flash Programmer Operation................................................................................................................ 52
I. FPGADOWNLOAD................................................................................................................................55
1. Programs and Download Cables to be Used................................................................................................ 55
2. Installation of Download Software QuartusProgrammer............................................................................. 56
3. Installation of Download Cable Driver........................................................................................................ 60
4. QuartusProgrammer Operation.................................................................................................................... 63
Chapter VI TWF Package ................................................................................................. 69
I. PACKAGING OF TWF DISPLAY UNIT.................................................................................................69
II. PACKAGING OF STANDALONE TWF SUSPENDER ..............................................................................69

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User Manual for TWF Series LED Unit
Chapter 1TWF Series LED Unit
I. Overview
TWF series LED display unit features front disassembly, energy-saving, seamless, high brightness, high
resolution, large viewing angle and wide color gamut. It also has the following features:
1. Precise assembling: All the key parts are made with advanced precision machining techniques, so that
the assembling accuracy is significantly improved;
2. Display units that can be disassembled from the front: The display units are uniquely structured so that
they can be disassembly from the front, which makes it possible to maintain them at the front side;
3. Standard interface: The HDMI universal interface is adopted so that the versatility is improved;
4. Highly integrated hardware: No external LED controller is required and the controller and drive board
are put together, which makes the maintenance much easier.
At present, the specifications of TWF series LED display unit for the splicing wall are listed in the
following table:
Models
Size (inch)
Pixel Pitch
Physical
Resolution
Unit Dimensions W×H×D
（mm）
TWF009AS
27
0.9375
640×360
600×337.5×95
TWF012AS
27
1.25
480×270
600×337.5×95
TWF015AS
27
1.5625
384×216
600×337.5×95
TWF018AS
27
1.875
320×180
600×337.5×95
Explanation of models：TWF012AS refers to TWF series display unit for splicing wall with 1.25mm
pitch and single AC power supply.
II. Appearance of Display Unit

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User Manual for TWF Series LED Unit
III Technical Parameter Table
The following parameters are given with TWF012AS as an example. Refer to the product specifications
for the parameters of other products.
Parameter
TWF012AS
Module Composition
Pixel structure
SMD 3in1 LED
Pixel pitch (mm)
1.25
Module resolution (W×H）
240x135
Module dimensions(mm)
300（W）×168.75（H）×10（D）
Module weight (kg)
0.5
Unit Composition
Unit module composition
2×2
Unit resolution (W×H）
480×270
Unit dimensions(mm)
600（W）×337.5（H）×95（D）
Unit area（m2）
0.2025
Weight（kg/display unit；kg/m2）
5.3; 26.5
Pixel density（point/m2）
640000
Display unit flatness (mm)
≤0.2
Optical Parameter
Single-point brightness correction
Yes
Single-point color correction
Yes
White balance brightness (nits)
≥600（color temperature 6500K，after correction）
Color temperature (k)
3000~10000 adjustable
Horizontal viewing angle (°)
160
Vertical viewing angle (°)
140
Center distance deviation of luminous
point
<3%
Brightness uniformity
≥97%
Color uniformity
±0.003Cx, within Cy
Maximum contrast
≥5000:1
Electrical
Parameters
Peak power consumption (W / display unit;
W / m2)
140; 700
Average power consumption (W / display
unit; W / m2)
48; 240
Power supply requirements
100~240VAC（50-60Hz）
Processing
Performance
Driving mode
Constant current driver
Frame frequency (Hz)
50&60
Refresh rate (Hz)
>3000
Service
Parameters
Typical service life (hrs)
50,000
Working temperature range (℃)
-10 ~ 40
Storage temperature range (℃)
-20 ~ 60

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User Manual for TWF Series LED Unit
Working humidity range (RH)
10~80% (non-condensing)
Storage humidity range (RH)
10~80% (non-condensing)

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User Manual for TWF Series LED Unit
Chapter 2 Installation
I. Dimensional Figure of Product
1. Dimensional Figure of Display Unit
Unit: mm
Three-view Figure of TWF Display Unit
2. Dimensional Figure of Installation Structure
There are four types of installation structures, i.e. 1*1, 1*2, 2*1 and 2*2，and their dimensional figures
are as below:
Unit: inch (upper figure); mm (lower figure)

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User Manual for TWF Series LED Unit

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User Manual for TWF Series LED Unit

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User Manual for TWF Series LED Unit
II. Display Unit and Installation Structure

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User Manual for TWF Series LED Unit
TWF series display unit has a unique structure based on which the front installation of the whole unit may
be achieved. The installation should be completed by four layers, namely:
A. LED display unit, fixed with Layer B through four Z-axis fine adjustment screws.
B. Display unit bracket, fixed with the LED display unit of Layer A through four fine adjustment
screws, and absorbed to Layer C and locked therein.
C. Four-way adjustment frame, absorbed with Layer D and Layer B and locked therein. The precise
mechanism allows the fine adjustment in four XY axis.
D. Suspender structure, fixed with the installation wall through screws. The precise mechanism
allows Z-axis fine adjustment. Besides, the AC-DC switching power supply is configured.
Display Unit and Installation Structure

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User Manual for TWF Series LED Unit
Layer Aand Layer B belong to the components of the display unit
Layer C and Layer D belong to the installation structure

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User Manual for TWF Series LED Unit
The installation structure is provided with left and right connecting pieces (left) and upper and lower
connecting pieces (right)
Splicing figure for connection of the four types of installation structures, i.e. 1*1, 1*2, 2*1 and 2*2 via
connection pieces
III. Adjustable Mechanism
1. Installation of Adjustable Mechanism
Thread ST6.3 * 25 mm hex flange self-tapping screws through the installation hole in Layer D (marked as
2) and fix it with the installation interface (usually a laminated wood board used);
Use the M5 * 12mm cross-recessed screw to connect the connection piece to the fixing hole of the
connecting board (marked as 1), where the connection piece has the positioning and fixing functions;
Use a slotted screwdriver to make the forward and backward adjustment in the Z-axis adjustment
mechanism of Layer D (marked as 4), based on the adjustment range of -6-6 mm;
Use a 3mm hexagonal tool to make upward, downward, leftward and rightward adjustment in the XY-axis
adjustment mechanism (marked as 3 and 5) of Layer C, based on the adjustment range of-5-5 mm. There

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User Manual for TWF Series LED Unit
are two adjustment points respectively on the left side, right side and top of the structure in Layer C.
Fixing Holes and Adjustable Structure of the Installation Structure

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User Manual for TWF Series LED Unit
XY four-axis adjustment mechanism
2. Structure Adjustment of Display Unit
Once Layers Aand B layer, as a integrated display unit component, are completely installed, Layer B will
be locked with Layer C and Layer D. In the subsequent maintenance, it only needs to remove the LED
display unit in Layer A.
Use a special magnet tool to make the forward and backward adjustment at the four Z-axis screws of the
display unit (see the figure below), based on the adjustment range of -5-5 mm.
3. Assembly and Removal of Display Unit
Operation steps for removal of display unit
1. Screw off the Z-axis screws at the four corners using a magnet tool;
2. Pull them out horizontally;
3. Lift the display unit;
4. Disconnect the connecting wire.
To assemble the display unit, follow the reverse steps relative to those listed above.
Z-axis adjustment and disassembly order of display unit

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User Manual for TWF Series LED Unit
Diagram for display unit separated from the structure layer
IV. Installation
1. Necessary Tools
Level ruler, tape measure, power tool with 10 mm sleeve head and large cross screwdriver, large slotted
screwdriver, 3mm hexagon tool and special magnetic tool.
2. Installation procedures
1. Scribe a line on the wall with laminated wood board mounted;
2. Install a suspender structure, and install the connection piece;
3. Measure the flatness after all the suspender structures are installed completely, and adjust the
unflat points through the Z-axis adjustment structure;
4. Cable arrangement: connect the cables before installing the display unit. Please refer to Section 2
'Splicing Mode and Wiring Diagram’ of Chapter 3 “Control System”. Arrange the signal cables
and power cables as per the project drawings.
5. Install the display unit from the middle to both ends for each line. Connect the associated power
cords, video cables and control cables. Adjust the part with seam via the adjustment mechanism
of Layer C and adjust the Z-axis unflat part via a magnetic tool.
6. After the full screen is completely installed, perform the system debugging.