absen K V3 Series LED Displays User Manual

Cabinet Thickness: 39.5mm
Main Features: Triangular design, wireless plug design,
die-cast aluminum cabinet frame, XYZ three-axis adjustment,
anti-knock lamp function

Product Usage Instructions

Safety Information

Before using the product, ensure you read and understand all
safety guidelines provided in the manual to prevent any potential
hazards.

Installation

1. Carefully install the display unit according to the
instructions provided.

2. Ensure the cabinet supports XYZ three-axis adjustment for
better flatness between cabinets.

3. Choose between front or rear installation, hanging, wall
mounting, or steel structure installation based on your
requirements.

Maintenance

1. Regularly check for any loose connections or damaged
components.

2. Clean the display unit gently with a soft, dry cloth to
maintain optimal performance.

Troubleshooting

If you encounter any issues with the product, refer to the
troubleshooting section of the manual or contact Absen for
assistance.

Frequently Asked Questions (FAQ)

Q: Can I touch the LED lamps when the device is running?

A: Avoid touching the LED lamps when the device is running or
switched off to prevent damage due to ESD.

Q: What are the main application scenarios for this
product?

A: Main application scenarios include retail displays and narrow
screen installations indoors.

Q: What is the weight of the cabinet?

A: The cabinet weighs 25kg, making it easy to handle during
installation.

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K V3 Series Product User Manual
K1.5 V3/K1.8 V3/K2.5 V3/K3.9 V3
Shenzhen Absen Optoelectronic Co.,Ltd.

CONTENT
SAFETY INFORMATION ……………………………………………………………………………………………….2 1 PRODUCT INTRODUCTION ……………………………………………………………………………………. 5
1.1 PRODUCT APPLICATION SCENARIOS ……………………………………………………………………………6 1.2 MAIN FEATURES ……………………………………………………………………………………………………. 6 1.3 PRODUCT PARAMETERS …………………………………………………………………………………………. 9 2 INTRODUCTION OF PRODUCT COMPONENTS …………………………………………………….. 11 2.1 PRODUCT SIZE INTRODUCTION ………………………………………………………………………………..11 2.2 INTRODUCTION OF CABINET COMPONENTS ………………………………………………………………..12 3 PREPARATION BEFORE INSTALLATION ……………………………………………………………….14 3.1 INSTALLATION TOOLS ……………………………………………………………………………………………. 14 3.2 INSTALLATION ENVIRONMENT REQUIREMENTS …………………………………………………………… 15 3.3 PRECAUTIONS BEFORE INSTALLATION ……………………………………………………………………….15 4 PRODUCT INSTALLATION …………………………………………………………………………………….18 4.1 STEEL STRUCTURE INSTALLATION …………………………………………………………………………… 18 4.2 BACK STRIP MOUNTING …………………………………………………………………………………………19 4.3 HANGING INSTALLATION ………………………………………………………………………………………… 23 4.4 TRIM PIECES INSTALLATION ……………………………………………………………………………………. 24 5 PRODUCT WIRING ………………………………………………………………………………………………. 27 5.1 PREPARATION BEFORE CONNECTION ………………………………………………………………………..27 5.2 POWER CABLE CONNECTION …………………………………………………………………………………. 27 5.3 SIGNAL CABLE CONNECTION …………………………………………………………………………………. 28 5.4 THE TEST OF SETTING UP AN ELECTRIC CIRCUIT ………………………………………………………..30 6 PRODUCT MAINTENANCE …………………………………………………………………………………… 31 6.1 PREPARATION TOOLS …………………………………………………………………………………………….31 6.2 FRONT MAINTENANCE ………………………………………………………………………………………….. 31 6.3 REAR MAINTENANCE ……………………………………………………………………………………………..35 6.4 PRODUCT MAINTENANCE PRECAUTIONS ……………………………………………………………………37 6.5 TROUBLESHOOTING ……………………………………………………………………………………………… 39
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SAFETY INFORMATION

K V3 Series Product User Manual

The following marks on the product and in this manual indicate important safety measures.

WARNING: Be sure to understand and follow all safety guidelines, safety instructions, warnings and precautions listed in this manual. This product is for professional use only! This product may result in serious injury or death due to fire hazard, electric shock, and crushing hazard.
Please read this manual carefully before installing, powering up, operating and maintenance of this product. Follow safety instructions in this manual and on the product. If you have any questions, please seek help from Absen.
Beware of Electric Shock! · To prevent electric shock the device must be properly grounded during installation. Do not ignore using the grounding plug, or else there is a risk of electric shock. · During a lightning storm, please disconnect the device’s power supply, or provide other suitable lightning protection. If the equipment is not in use for a long time, please unplug the power cable. · When performing any installation or maintenance work (e.g. removing the fuses, etc.,) make sure to turn off the master switch. · Disconnect AC power when the product is not in use, or before disassembling, or installing the product. · The AC power used in this product must comply with local building and electrical codes, and should be equipped with overload and ground fault protection. · The main power switch should be installed at a location near the product and should be clearly visible and easily reached. This way in case of any failure the power can be promptly disconnected. · Before using this product check all electrical distribution equipment, cables and all connected devices, and make sure all meet current requirements. · Use appropriate power cables. Please select the appropriate power cable accableing to the required power and current capacity, and ensure the power cable is not damaged, aged or wet.
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If any overheating occurs, replace power cable immediately. · For any other questions, please consult a professional.
Beware of Fire! · Use a circuit breaker or fuse protection to avoid fire caused by power supply cables overloading. · Maintain good ventilation around the display screen, controller, power supply and other devices, and keep a minimum 0.1 meter gap with other objects. · Do not stick or hang anything on the screen. · Do not modify the product, do not add or remove parts. · Do not use the product in case ambient temperature is over 55 .
Beware of Injury! · Warning: Wear a helmet to avoid injury. · Ensure any structures used to support, fix and connect the equipment can withstand at least 10 times the weight of all the equipment. · When stacking products, please hold products firmly to prevent tipping or falling. · Ensure all components and steel frames are securely installed. · When installing, repairing, or moving the product, ensure the working area is free of obstacles, and ensure the working platform is securely and stably fixed. · In the absence of proper eye protection, please do not look directly at the lit screen from within a 1 meter distance. · Do not use any optical devices that have converging functions to look at the screen to avoid burning the eyes.
WARNING: Beware of suspended loads.

LED lamps used in the module are sensitive and can be damaged by ESD (electrostatic

discharge). To prevent damage to LED lamps, do not touch when

the device is running

or switched off.

WARNING: The manufacturer shall not bear any responsibility for any incorrect, inappropriate, irresponsible or unsafe system installation.

Product Disposal · Any component that has a recycling bin label can be recycled. · For more information on collecting, reusing and recycling, please contact the local or regional waste management unit. · Please contact us directly for detailed environmental performance information.

K V3 Series Product User Manual
Warning: Changes or modifications to this unit 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 B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: –Reorient or relocate the receiving antenna. –Increase the separation between the equipment and receiver. –Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. –Consult the dealer or an experienced radio/TV technician for help. This Class B digital apparatus complies with Canadian ICES-003. This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numerique de la classe B est conforme a la norme NMB-003 du Canada.
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K V3 Series Product User Manual
1 Product Introduction
Experience the next level of LED displays with Absen’s unique triangular design. Our technology ensures unmatched stability, safety, and reliability, making every display stand out regardless of the setting. With the versatility of our 3+1+1 configuration, we make inventory management seamless for our esteemed clientele. Choose Absen and revolutionize your visual storytelling.
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K V3 Series Product User Manual
1.1 Product application scenarios
This product is mainly used in the following application scenarios (indoor):
Retail: display screen at the entrance of the store, pillar screen inside the store, wall display screen inside the store, etc.;
Other: Narrow screen and internal arc screen application scenarios.
1.2 Main Features
1.2.1 Structural design
The cabinet supports rotary installation design, splicing is more flexible, to meet your creative needs for design.
When the cabinet is rotated 90°, the module is rotated 90° in reverse, and the angle of view of the LED lamp bead is not affected.
The thickness of the cabinet is only 39.5mm, the weight is only 25kg/,
thin and stylish. module adopts wireless plug design, providing convenient and quick
disassembly experience. module adopts no shell design for higher splicing accuracy. Display unit adopts die-cast aluminum cabinet frame with high splicing
precision. The cabinet supports XYZ three-axis adjustment to achieve better flatness
between the cabinet and the cabinet. Front or rear installation, hanging, wall mounting, and steel structure
installation. specially designed anti-knock lamp function, effectively prevent the lamp in
the process of transportation and installation damage, greatly improve the durability and stability of the product. The receiving card is connected with high-precision tight connector, which is stable, reliable and convenient to maintain. provides non-magnetic solution selection, completely farewell to magnetic dust, so that the screen is always as new, committed to providing a clean and clear viewing experience, so that you enjoy the visual feast. products support customized right angle screen and curved screen to create unique visual effects, decorate the place and become a highlight of attention.
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K V3 Series Product User Manual
Optional the “new” standard Trim Pieces, experience elegance like never before with our Ultra-Thin Bezel Design. Its innovative configuration conceals side wiring and panel structure, elevating your screen’s sophistication to unparalleled heights.
Ultra-thin wall hanging solution, providing standard wall hanging installation solutions, wall hanging thickness is less than 72mm, fully saving installation space, highlighting ultra-thin aesthetic feeling.
Hanging installation solutions, providing standard hanging bar installation solutions to meet diverse application needs.
floor installation solutions, providing steel structure installation solutions, simple and easy to operate, so that you can layout space as you like.
Supports full pre-maintenance and no special maintenance channel is required to save space. Modules, power supplies, receiving cards, and HUB boards support full pre-maintenance.
Support full maintenance, unique full maintenance design, convenient and fast to complete the maintenance of the equipment, to ensure the normal operation of the equipment at any time; Modules, power supplies, receiving cards, HUB boards support full post-maintenance.
1.2.2 Feature design
The full series of cabinet design adopts an innovative combination: 3+1+1. In the case of limited cabinet types to achieve diversified splicing, flexible matching customer needs, convenient inventory management.
Using A5C+ point-by-point correction technology, effectively improve the display uniformity and color consistency of the screen, greatly improve the color saturation, and restore the real vision.
Absen’s professional color management technology realizes the adaptive video source color gamut, making the color display full and fresh, the details are clear and sharp, the dark texture is rich, and the color is more accurate and true.
provides dual brightness configuration of conventional bright version and high bright version, the brightness of conventional bright version can reach up to 700nits, and the brightness of high bright version can reach 3000nits, to meet the diversified needs of use.
TUV Rheinland low blue light certification, filter harmful blue light, love your eyes;
Electromagnetic compatibility reaches Class B level, health worry free.
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K V3 Series Product User Manual
Automatically turn on the black screen energy-saving mode after cutting off the signal source, it achieves efficient energy conservation, merging sustainability with cost efficiency.
provides intelligent module selection function, effectively improve product operation and maintenance efficiency and realize intelligent management, so that you can grasp the working status of the product at any time, calmly deal with various situations. Support to monitor the receiving card temperature and voltage, module current, voltage and temperature, cable connection status, and support bad spot check function.
Adopts PWM constant current output high-end chip to achieve low light and high gray, rich color layers and accurate detail presentation.
The cabinet supports signal loop backup. A single module is set with attenuation coefficient, so that there is no color
difference after repair and replacement. The software has the function of adjusting the light and dark lines with one
key. Correction data can be stored on the receiving card and the module itself,
and the software can read back data from both.
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1.3 Product Parameters
1.3.1 Conventional bright version specifications

Parameters

K1.5 V3

K1.8 V3

K2.5 V3

K3.9 V3

Diode Type

SMD1212

SMD1515

SMD2121

Pixel Pitch (mm)

1.5

1.8

2.5

3.9

Panel Dimensions (WxHxD)/(mm)

750/1000/1250*250*39.5

Physical Parameter

Pixel Per Panel

480/640/800*160 396/660/528*132 300/400/500*100 192/256/320*64

Panel Weight (kg)

4.6/6.2/7.9

Panel Material

Die-cast aluminum

Module Dimensions (WxH)/(mm)

250*250

Brightness (nit)

700nits

Refresh Rate (Hz)

3840

Gray scale (bit)

14 bit

Optical Parameter

Contrast Ratio Color Temperature (K) Viewing Angle (H/V) (°)

3500:1 160/160

3000:1

3500:1

6500

160/160

4500:1 160/160

Driving Type

1/54

1/44

1/34

1/22

AC Operating Voltage (V)

100~240

Power Consumption (Max./Avg.)(W/m²)

360/120

390/130

360/120

300/100

Storage Temperature

-40+60

Application Parameter

Operating Temperature Storage Humidity Operating Humidity

-10+40 10%85% 10%80%

LED Lifetime

100000

Module maintenance

Full front/Full rear

Installation/Maintenance Power & other maintenance

Full front/Full rear

Installation method

Hanging, Wall mounting and Stacking

EMC level

CLASS B

Certification

CCC/CE/FCC/ETL/ROHS/TUV/CB/UKCA/BIS

Note: Power consumption tolerance: ±15%, according to the actual situation.

K V3 Series Product User Manual

1.3.2 High bright version specifications

Parameters Diode Type Pixel Pitch (mm)

Physical Parameter

Panel Dimensions (WxHxD)/(mm) Pixel Per Panel

Panel Weight (kg)

Panel Material

Module Dimensions (WxH)/(mm)

Brightness (nit)

Refresh Rate (Hz)

Gray scale (bit)

Optical Parameter

Contrast Ratio Color Temperature (K) Viewing Angle (H/V) (°)

Driving Type

AC Operating Voltage (V)

Power Consumption (Max./Avg.)(W/m²)

Storage Temperature

Application Parameter

Operating Temperature Storage Humidity

Operating Humidity

LED Lifetime

Installation/ Maintenance

Module maintenance Power & other maintenance

Installation method

EMC level

Certification

K1.8 V3 SMD515
1.5 396/660/528*132
4500:1 1/44

K2.5 V3 SMD1515
1.8 750/1000/1250*250*39.5
300/400/500*100 4.6/6.2/7.9
Die-cast aluminum 250*250 3000 3840 14 8000:1 6500 160/160 1/34 100~240

K3.9 V3 SMD1515
2.5 192/256/320*64
8000:1 1/22

450/150

360/120

330/110

-40+60 -10+40 10%85% 10%80% 100000 Full front/Full rear Full front/Full rear Hanging, Wall mounting and Stacking CLASS B CCC/CE/FCC/ETL/ROHS/TUV/CB/UKCA/BIS

Note: Power consumption tolerance: ±15%, according to the actual situation.

K V3 Series Product User Manual
2 Introduction of Product Components
2.1 Product Size Introduction
2.1.1 Cabinet size drawing

250mm

750mm

250mm

2.1.2 Module size drawing
250mm
250mm
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K V3 Series Product User Manual
2.2 Introduction of Cabinet Components
2.2.1 Introduction to panel structure

Steel structure/hook mounting holes

Module wireless plug
Rear cover removal screws position

2.2.2 Rotatable installation for panel
The cabinet supports rotating installation. When the cabinet is rotated 90°, the
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ABC D E

K V3 Series Product User Manual
module is rotated 90° in reverse, and the LED lamp viewing angle is not affected in any way. Based on the module surface, the small cabinet remains at the top of the cabinet after rotation.
E D AB C DE C B A
The module rotates 90° clockwise, and the wireless connector rotates clockwise synchronously, based on the module surface.
Anti-dull design, prevent module short circuit
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K V3 Series Product User Manual

3 Preparation before Installation

3.1 Installation Tools

Tool type

function

knife

Open the cabinet

Installation Tool List

Hexagon screwdriver

Install and remove the hexagon socket screws

6mm T-wrench

Install the connecting plate screws

5mm T-wrench

Install the “Z” axis adjustment screw

Socket hexagon Install the screws between the

wrench

LED cabinets

PH2 screwdriver Multimeter

Maintenance and disassembly
Module & power supply & Measuring power cable and
distribution cabinet

Spirit level

Check the flatness of the cabinet installation

Rubber hammer

Adjusting the flatness of the panel structure

Front maintenance tool

Install& maintain the LED module

Diagonal pliers

Handling cable ties when arranging cables

tape measure

Measure the distance

picture

Laser level

Measuring installation position

K V3 Series Product User Manual

3.2 Installation Environment Requirements
1. The small spacing series requires on-site temperature and humidity testing to ensure that the temperature is within 35 and the humidity is within 70% RH; 2. When the temperature exceeds (35 , 70% RH), the product cannot be installed on site;
3.3 Precautions before Installation
Before installation
1. Determine the power distribution plan: Provide a specific power distribution plan based on the size and arrangement order of the actual display screen, determine the specifications and quantity of the power distribution panel , main power lines, and the number of power lines connected to the cabinet. Determine the specifications and quantity of the sending panel and video processor, as well as the number of network cables, based on the total pixel points and arrangement order. 2. Power distribution precautions The wiring should be neat, horizontal and vertical, and non cable cables must be laid with wire slots or conduits; The signal line and power line are laid separately to avoid interference; The wiring should consider three-phase power balance, and try to have an equal number of display panel es for each phase of electrical load; The cable head needs to be pressed with wire terminals; Encode the wire ends, and ensure that the overall distribution diagram is consistent with the actual wiring for easy troubleshooting in the future; Under the premise of considering the safe carrying capacity, lay the cables from the distribution panel to the display screen panel based on the actual arrangement of the panel;
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K V3 Series Product User Manual
Long distance wiring, considering line loss voltage, to ensure that the display terminal voltage is within the allowable range;
3. Tool preparation: commonly used tools for screen installation, including matching and preparing models with tools such as screwdrivers, wrenches, and multimeters.
During installation
4. Installation of distribution panel : The installation of distribution panel must be firm and reliable. Reliable protective grounding.
5. Panel installation: equipment handling. Adequate manpower must be provided to ensure safety. Pay attention to handling with care and avoid damaging the appearance and function of the panel due to collision. Install the display screen and check if the magnet legs are tightened. Confirm that the power cord and network cable are connected in place and correctly, the network cable is inserted in place, and the screen connection sequence is correct.
6. Wiring sequence: First, connect the panel in series with a power cord connected to the panel, and then connect the main power cord from the distribution panel or socket to the bottom layer of the panel.
7. Power connection: Firstly, confirm that the power supply end is in a “disconnected” state and must start connecting from the power consumption end (equipment switch or distribution panel , etc.). Only after checking the correct connection of the power supply end can the power supply end be connected. First, connect the protective grounding, then connect the zero line, and finally connect the phase line. After connecting to the power supply: Check the power supply switch or equipment distribution voltage, confirm that there are no errors, and then “disconnect” the power supply. The power cord must be distinguished by color for ground wire, neutral wire, and phase wires such as A, B, and C.
8. Panel adjustment: Check if the display screen is flat and clean. Perform micro silicon adjustment on the gaps between modules and between panel es. When installing, be sure to lock the panel tightly with screws to ensure the smoothness of the left, right, top, and bottom between the panels.
9. Power test: Before supplying power to the entire screen and providing control signals, please carefully check whether the power and signal lines are connected correctly; Please carefully check the “L” line, “N” line, and “PE” line on the AC power input port of each panel to ensure that there is no short circuit between the three (measured with a multimeter).
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K V3 Series Product User Manual
10. Power on detection: Fault diagnosis, checking the appearance of the power on detection for any broken screen and correct text output; If a fault occurs, make a judgment based on the fault phenomenon and eliminate the fault.
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K V3 Series Product User Manual
4 Product Installation
4.1 Steel Structure Installation
The steel structure installation method : cabinets are installed layer by layer from the bottom to up. 1. Use M8*25 screws to lock adjacent cabinets.
2. Use the connecting plate and M8x55mm screws to fix the square, install M6*50 “Z” axis adjustment screws on the connecting plate.
“”Z” axis adjustment screws
connecting plate fixing screw
Note: When the steel structure is installed, if there is a part of the cabinet rotating installation, the connection plate only needs to be fixed between the
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K V3 Series Product User Manual
rotating cabinet and the rotating cabinet, and the rotating cabinet and the standard cabinet only need to use the cabinet internal screws to fix.
3. After the cabine is installed, confirm that the cable is connected and then install the module on the cabinet according to the number (Refer to the chart below for module codes).

4.2 Back Strip Mounting
Back strip type:

250mm back strip

750mm back strip

1. Fix the first back strip in the lower left corner of the first row (the bottom of the screen) on the flat wall with M6 self-tapping screws or M6 expansion screws.
M6 screw installation position

K V3 Series Product User Manual
2. Install the other back strips of the first row using the transverse mounting fixture.
Rear view mounting fixture
Front view of mounting fixture
3. After installing the first row of back strips, install the second row of back strips using vertical fixtures (the distance between the second row of back strips and the first row of back strips depends on the site conditions, can be one cabinet, two cabinets, three cabinets or four cabinets height, four cabinet height is recommended as a group).

Front view of mounting fixture

Rear view mounting fixture

4. Repeat the above actions to install the back strip.
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5. Assemble the cabinet (excluding the module), the four cabinets are in a group, using M8*15 screws to install the cabinet hook.
Hook installation position
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K V3 Series Product User Manual
6. Hang the cabinet against the back strip and lock the safety screws to ensure that the cabinets will not slip.
safety screws installation position
7. Install other cabinets and use M8*25 screws to lock between cabinets to complete the screen installation.
Note: When a rotating cabinet is installed, the back strip does not need to be rotated, only the cabinet needs to be rotated. 8. Wiring power cables and network cables. 9. Install modules according to the corresponding numbers of modules and cabinets (Refer to the chart below for module codes).
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K V3 Series Product User Manual
4.3 Hanging Installation
Use the cabinet fixing screws to connect the cabinet and the hanging bar, the hanging bar can lift up to 24 cabinets; The hanging bar is divided into 750mm Hanging bar and 250mm hanging bar. Installation steps: 1. Fix the hanging bar on the structure; 2. Align the screws of the cabinet with the mounting holes on the hanging bar,
and install the cabinet under the hanging bar; 3. Install other cabinets and lock the screws between the cabinets; 4. Complete the connection of network cables and power cables; 5. Complete module installation;
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K V3 Series Product User Manual

4.4 Trim pieces installation

This product supports optional trim pieces. The trim pieces installation only needs to be stuck into the cabinet hole, and no screws are needed to fix the trim pieces (the internal arrow faces the module face when installing the trim pieces).

Serial number

Trim pieces type
750x68x5mm
750x68x5mm
260x68x5mm 255x68x5mm 250x68x5mm

Application description
Only used for top and bottom trim pieces of 750×250 cabinetes Limited to 3 250mm size splicing sizes (combined of 3 250mm cabinet splicing) One row, one row, 260mm length trim pieces Screen corner trim pieces Applicable to all 250mm size bits

The following is an example of trim pieces installation: 1. the cabinet top and bottom trim pieces installation, using the trim pieces

(yellow line part of the installation position) and trim pieces (purple line part
of the installation position) for installation (when the trim pieces is installed at the top, the cabinet positioning column needs to be removed).
Note: Select “T” button for trim pieces when installing trim pieces at the top

of the screen; select “B” button when installing trim pieces at the bottom of the screen.
trim pieces is installed at the top of the screen, select the “T” buckle mounting hole. If trim pieces is installed at the bottom of the screen, select the B/S buckle mounting hole.

K V3 Series Product User Manual
2. the left and right sides of the cabinet trim pieces installation (excluding the four corners of the screen) using trim pieces (purple line part is the installation position). Note: When the trim pieces is installed on both sides of the screen, select the “B/S” buckle mounting hole.
3. The four corners trim pieces of the screen are installed using trim pieces (the blue line part is the installation position). Note: When the trim pieces is installed in the lower left and upper right of the screen, select “S1” buckle mounting hole, and when it is installed in the upper left and lower right of the screen, select “S2” buckle mounting hole.
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4. If you encounter a combination of three 250mm length cabinets, use trim pieces installation (the green line part is the installation position). When the trim pieces is installed on the top of the screen, the buckle of the trim pieces is selected as the “T” buckle mounting hole; Select the B/S buckle mounting hole for trim pieces on both sides of the screen and at the bottom
5. If there is a single row and single column screen that needs to be installed with trim pieces, use and trim pieces on the top and bottom, and use trim pieceson both sides (the blue line part is the installation position).
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K V3 Series Product User Manual
5 Product Wiring
5.1 Preparation before Connection
Before connecting: Before supplying power to the entire screen, please carefully check whether the power cable between the cabinets is connected, and whether the main power cable between the screen and the distribution cabinet is properly connected; check and confirm the AC power input port of each cabinet “L” wire, “N” wire, and “PE” wire, confirm that there is no short circuit between the three (measured with a multimeter). And before providing control signals, Please calculate the power cable connection scheme according to the maximum power consumption and select the appropriate power distribution cabinet or socket model. For specific options, please consult your electrician or power distribution cabinet manufacturer. The input voltage of the cabinet is 100-240V/AC, and a 3X1.5mm² power cable is used from the distribution cabinet to the cabinet. Please confirm the input voltage, different voltages and different product models, and each power cable carries a load of the cabinet The quantity will be different (when unable to confirm, please contact our customer service department!).
5.2 Power Cable Connection
The following uses a 5×3 K1.5 V3 cabinets as an example to describe how to connect power cables: When 220V voltage is applied, 15 K1.5 V3 cabinets are carried using three main power cables, each of which carries five cabinets. Connect the cabinets in series using the connecting power cables, and then connect the 3 x 1.5mm2 power cables from the distribution box or socket to the bottom cabinets.
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Model
K1.5 V3 K1.8 V3 K2.5 V3 K3.9 V3

Cabinet size(mm)
1250x250x39.5 1250x250x39.5 1250x250x39.5 1250x250x39.5

Power consumption (maximum)
360 W/

Power cable on Power cable on

load (220V)

load (110V)

390 W/

360 W/

300 W/

Cabinet-connected power cable

main power cable

5.3 Signal Cable Connection
The signal cable adopts RJ45 CAT5 network cable, and the network cable interface of the panel can be used for input and output. The method of connecting the “S” type up and down is to calculate the resolution based on each panel pixel and connect the signal cable according to the load range of the sending card. Pay attention to the load on each network port.
The pixel range cannot exceed 655360 points (as shown in the following figure)
Taking the 5×3 K1.5 V3 panel as an example, the connection method of the power cable is introduced as follows:
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K V3 Series Product User Manual

The pixel count of a single K1.5 V3 panel is 800×160=128000, and 15 K1.5 V3 cabinets are loaded with 3 network cables, with each cable carrying 5 cabinets.

Model K1.5 V3 K1.8 V3 K2.5 V3 K3.9 V3

Cabinet size 1250x250x39.5 1250x250x39.5 1250x250x39.5 1250x250x39.5

Single network port Panel resolution
with load

800×160

Cabinets 5

660×132

Cabinets 7

500×100

Cabinets 13

320×64

Cabinets 31

Note
When calculating the actual maximum number of panels carried by a single network cable, the calculation is based on the number of panels in the rectangular area carried by the network cable

Sending cabinet Laptop

Main network cable

Cabinet-connected network cable

K V3 Series Product User Manual
5.4 The Test of Setting up an Electric Circuit
After the cabinet connection is completed, please use a multimeter to measure whether there is short circuit at the AC input (L/N/PE) and DC output (VCC/GND) of the power supply. If a short circuit is found, please check the circuit carefully. After ensuring the cable is normal, switch on the power to electrify the cabinets to work. Note: Please refer to the software user manual for software operation.
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6 Product Maintenance

6.1 Preparation Tools

Tool type

function

Module front Installation and removal

service tool

LED module

picture

maintenance Tool List

Safety rope

Used for module rear-maintenance

PH2 screwdriver

Removing/installing screws for adapter
board, receiving card, and power
supply

Multimeter

Measuring power cable and distribution
cabinet

6.2 Front Maintenance
6.2.1 Module maintenance
The K V3 series module can be quickly removed using a vacuum adsorption tool in 3-5 seconds, Attach the front maintenance tool to the faulty module surface to be removed, press the switch once, hold for 3-5 seconds, and then forcefully pull the air suction tool outward to remove the module.

K V3 Series Product User Manual

Illustratio n

Maintena nce step
Note

Confirm the location of the Press the switch once and Gently install the spare

faulty module and place the hold for 3-5 seconds. Grasp the module onto the screen in an

vacuum front maintenance handle and forcefully pull the upward direction.

tool on the middle area of suction tool outward to remove

the faulty module

the module.

1. The front maintenance tools should be placed in the middle area of a single module and cannot

cross adjacent modules;

2. After adsorbing and removing the module from the screen, use your left hand to hold the

module to prevent the front maintenance tool from running low or the switch from closing, which

may cause the module to fall off.

6.2.2 Adapter board/Receiving card/Power supply maintenance

Using the maintenance tool, remove the modules on the faulty cabinet, and then use a screwdriver to replace the faulty components.

Receiving card maintenance method

Schematic drawing

Remove all modules from the faulty ccabinet using a pre-vacuum maintenance tool

Use a Phillips screwdriver of PH2 to remove the module leveller inside the cabinet
Remove the screws securing the receiving card using the Phillips screwdriver of PH2, and replace the faulty receiving card
HUB maintenance method
Use a Phillips screwdriver of PH2 to remove the module leveller inside the cabinet
Remove network cables, cables, and 5V power supply cables from the HUB board
Remove the screws securing the HUB board using the Phillips screwdriver of PH2, and replace the faulty HUB board
Power supply maintenance method
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K V3 Series Product User Manual
Schematic drawing Schematic drawing

Use a Phillips screwdriver of PH2 to remove the module leveller inside the cabinet
Remove the power cable from the power supply, and use the Phillips screwdriver of the PH2 to remove the screws that secure the power supply

K V3 Series Product User Manual

6.3 Rear maintenance
6.3.1 Module maintenance
Note: Please install the safety rope to prevent the module from falling during rear-maintenance of the module

Module maintenance method

Schematic drawing

Remove 2 loose screws from rear cover

Remove the module connector

Install safety rope to adjacent modules of the failed module

Push the module with the safety rope outward and hang it on the surface of the screen
Rotate the faulty module 90° to replace the module
When installing the module, note that the arrow of the module is upward, and install the module on the cabinet
Replace the new module with a safety rope to prevent the module from falling
Install adjacent modules on the cabinet
Lock the connectors of the two modules
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K V3 Series Product User Manual

Remove the module safety rope and close the rear cover of the cabinet

K V3 Series Product User Manual

6.3.2 Adapter board/Receiving card/Power supply maintenance
When maintaining the receiver card, HUB board, and power supply, open the rear cover of the cabinet for rear-maintenance. For the rear-maintenance method, see the previous maintenance method
6.4 Product Maintenance Precautions
6.4.1 Precautions for switch on /off LED screen
(1) Turn on the screen: first turn on the control computer to make it run normally, and then turn on the LED display.
(2) Turn off the screen: first turn off the power of the LED screen, turn off the control software, and then turn off the computer correctly; (first turn off the computer without turning off the display screen, it will cause the screen to appear bright spots, burn the lamp, and have serious consequences)
(3) The interval between switching screens should be greater than 5 minutes; (4) Avoid turning on the screen in the state of full white screen, because it is
the maximum power state at this time, and its impact current to the entire power distribution system is the largest.
6.4.2 Precautions for power supply
(1) The LED module is powered by DC +5V (working voltage: 4.2~5.2V), AC power is prohibited; the positive and negative poles of the power supply terminals are strictly prohibited to be reversed (note: once reversed, the product will be burnt out and even cause serious fire);
(2) Power supply voltage of LED display: 220V±10% Frequency: 50HZ±5%; (3) Safe and reliable earth contact, reliable isolation between the earth wire
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K V3 Series Product User Manual
and the neutral wire, and keep the power supply away from high-power spares; (4) If abnormalities such as short circuit, tripping, wire burning, smoke, etc. are found, the power-on test should not be repeated, and the problem should be found in time; (5) Keep the power supply stable, and do grounding protection to avoid lightning strikes, do not use it under harsh natural conditions, especially strong lightning weather; (6) The large screen power supply must be supplied step by step, because the maximum power state of the entire screen will have an impact on the entire power distribution system; (7) The LED display screen is not allowed to play the full white screen with the highest brightness for more than half an hour, so as not to cause excessive current, power cord heating, LED light damage, and affect the life of the display screen. It is recommended to play dynamic videos; (8) During the use of LED display products, the power supply should not be turned on and off continuously, and there should be at least 1 minute between the two operations; (9) Non-professionals are forbidden to touch the internal wiring of the large screen of the LED display to avoid electric shock or damage to the wiring.
6.4.3 Notes on cleaning
(1) Regular cleaning and maintenance: The indoor fine pitch LED display screen will be used for a long time, and more dust will accumulate on the screen. This needs to be cleaned regularly and in time to prevent it from affecting the viewing effect;
(2) To clean the surface of the module, please use a soft brush and wipe gently. It is forbidden to use any liquid substance to clean the surface of the LED module, otherwise the LED may be damaged;
(3) Wipe correctly: the surface of the large LED display screen cannot be wiped with alcohol or directly with a damp cloth. It is recommended to use brushes and vacuum cleaners to remove dust.
6.4.4 Moisture-proof and storage requirements
(1) Storage temperature requirements: ambient temperature -20t50. After the package is opened, the LED products must be stored in an environment with a temperature of <30 and a humidity of <70%RH;
(2) According to the environmental conditions of the display screen and the control part, avoid insect bites, and put anti-rodent drugs if necessary;
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K V3 Series Product User Manual

(3) The LED display should not be turned off for a long time. In a high-humidity environment, if the display is not used for more than 3 days, the pre-heating method should be used each time the display is turned on: 30%-50% brightness is preheated 4 -8 hours, then adjust to normal brightness (80%-100%) to light up the screen, so as to remove moisture so that there is no abnormality during use; if the screen has not been used for more than 7 days, every time the screen is turned on Need to adopt the pre-heating method: 30%-50% of the brightness is preheated for more than 12 hours, and then adjusted to normal brightness (80%-100%) to light up the screen, so as to remove the moisture, so that there is no abnormal.
(4) The large LED screen needs to be checked regularly to see if it is working properly. If the circuit is damaged, it should be repaired or replaced in time. The main control computer and other related equipment should be placed in an air-conditioned and dusty room to ensure the computer’s ventilation and heat dissipation and stable operation. Non-professionals are forbidden to touch the internal wiring of the screen to avoid electric shock or damage to the wiring. If there is a problem, you should ask a professional for inspection and repair.

6.5 Troubleshooting

No.

Common faults

Solution

1. Check whether the power plug of the corresponding

module is tightly inserted;

2. Check whether the power cable of the corresponding

module is burnt out;

3. Check whether the switch power supply of the

Some modules are not corresponding module has no output;

lighting on

4. Check whether the flat cable of the corresponding module

is malfunctioning;

5. Replace the flat cable of the corresponding module;

6. Replace the module;

7. Replace the receiving card;

8. Send rcfg file;

1. Check whether the screen power is on;

2. Check whether the DVI cable or HDMI cable is loose;

3. Check whether the main data cable is inserted tightly;

The whole screen is

not lighting on

4. Check whether the sending card is powered on and

whether the running indicator is flashing;

5. Replace the sending card;

6, Connecting the computer to an LCD display, check

K V3 Series Product User Manual

whether there is output on video card;

7. Update the video card driver;

8. Replace the computer;

1. Check whether the power plug of the receiving card is

tightly inserted;

2. Check whether the power cable of the receiving card is

burnt out; Screen show scramble 3. Check whether the power supply has no output; 3d
4. Check the data cable of the receiving card; image
5. Replace the data cable;

6. Send the rcfg file;

7. Upgrade the firmware version of the receiving card;

8. Replace the receiving card;

1. Check whether the module power plug is plugged tightly;

2. Replace the flat cable;

Chromatic aberration

3. Replace the power supply;

between modules

4. Replace the module;

5. Replace the receiving card;

All LED panels display 1. Set the screen connection on software;

the same content

2. Check whether the data port is wrong.

1. Check the USB cable;

2. Check whether the computer USB port is malfunctioning;

No control system

detected

3. Update the USB driver;

4. Replace the USB cable;

5. Replace the sending card;

1. Check whether the distribution cabinet is in the automatic

state;

2. Check whether the multi-function card is powered;

3. Replace the power supply of the multi-function card;

4. Check whether the main data cable is inserted into the

No multi-function card

wrong data port;

detected

5. Check whether the sending card data port is

malfunctioning;

6. Re-add the multi-function card;

7. Replace the multi-function card;

8. Replace the sending card;

1. Check whether the setting of the playback window is

normal;

No full screen display 2. Check the output resolution of the video processor;

3. Check the output window of the video processor;

K V3 Series Product User Manual
Check for Power Supply Short Circuit After completing the cabinet wiring, please use a multimeter to check if there is any short circuit at the AC input power supply (L / N / PE) and DC output terminal (VCC / GND). If there is a short circuit, please carefully investigate the wiring. Make sure all wiring are normal, and only then connect power to operate the unit.
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Documents / Resources

absen K V3 Series LED Displays [pdf] User Manual
K1.5 V3, K1.8 V3, K2.5 V3, K3.9 V3, K V3 Series LED Displays, K V3 Series, LED Displays, Displays

References

User Manual

K V3 Series LED Displays

Specifications

Product Usage Instructions

Safety Information

Installation

Maintenance

Troubleshooting

Frequently Asked Questions (FAQ)

Q: Can I touch the LED lamps when the device is running?

Q: What are the main application scenarios for this
product?

Q: What is the weight of the cabinet?

Documents / Resources

References

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