Absen KLCOB V2 Series User manual

KLCOB V2 Series User Manual
Shenzhen Absen Optoelectronic Co.,Ltd.

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Catalogue
1．Product Introduction............................................................................................................................................................- 6 -
1.1 Product Main Features............................................................................................................................................- 6 -
1.2 Product Specifications..............................................................................................................................................- 7 -
1.3 Cabinet dimension figure........................................................................................................................................- 8 -
1.4 Module dimension figure.........................................................................................................................................- 8 -
2．Product Components..........................................................................................................................................................- 9 -
2.1 Cabinet Introduction...................................................................................................................................................- 9 -
2.2 Product Component Drawing................................................................................................................................- 9 -
3. Product Installation.............................................................................................................................................................. - 11 -
3.1 Steel structure installation.................................................................................................................................... - 12 -
3.2 Wall mounting installation.................................................................................................................................... - 13 -
3.3 Hanging installation................................................................................................................- 14 -
4．Product Cabling.................................................................................................................................................................. - 15 -
4.1 Power Supply Wiring.............................................................................................................................................. - 17 -
4.2 Signal Cable Wiring................................................................................................................................................ - 18 -
4.3 The test of setting up an electric circuit.......................................................................................................... - 19 -
5．Maintenance......................................................................................................................................................................... - 20 -
5.1 Tool preparation........................................................................................................................................................ - 20 -
5.2 Maintenance instructions...................................................................................................................................... - 20 -
6. Common faults and troubleshooting ...............................................................................................- 22 -

KLCOB V2 Series User Manual - 3 -
Safety Information
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 cord.
• 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 cords. Please select the appropriate power cord according to the
required power and current capacity, and ensure the power cord is not damaged, aged or
wet. If any overheating occurs, replace power cord immediately.
• For any other questions, please consult a professional.

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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.

KLCOB V2 Series User Manual - 5 -
Warning: Changes or modifications to this unit not expressly approved by the party resp
onsible 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 frequen
cy energy and, if not installed and used in accordance with the instruction manual, may c
ause harmful interference to radio communications. Operation of this equipment in a resi
dential area is likely to cause harmful interference in which case the user will be required
to correct the interference at his own expense.

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1．Product Introduction
The KLCOB V2 series is a Micro LED fine pixel pitch LED display dedicated to the
control room and conference room. It uses integrated flip encapsulation. The Panel size
is 600X337.5mm. It is designed with a 27 -inch 16: 9 ratio and can better display the
details of the image.
Product application: professional control room, conference room, studio, high -end
business display.
1.1 Product Main Features
Black,Extraordinary deep blacks. The surface is covered with a black coating of
polymer material, which brings amazing black consistency, bringing a deep and pure
black, which improves the visual performance to an unprecedented level.
Brilliant,Capture every brilliance. Integrating multiple Absen image optimization
technology, the KLCOB enhanced the clarity and visibility to bring out natural details and
vivid colors for realistic and incredible images.
Cool,Stay cool, enjoy more. Thanks to the flip-chip LED technology and Absen’s HBB
technology, the KLCOB can always stay cool, diving into the fantastic visual world without
breaking a sweat.
Strong,Against external impact. The panel-type Micro LED encapsulation technology
effectively protects the display from external impact , providing 360°all-round protection.
Maximize Your View. The KLCOB cabinet adopts a 16:9 display ratio,which can be
easily spliced into 2K,4K,8K screens or any size you want,providing an immersive view
experience.
Refresh Pair of Eyes. The non-glare surface light source brings softer and uniform light,
and the eye fatigue is relieved when watch the screen for a long time.
Perfect in-Camera Performance.Panel-type light-emitting effectively reduce moiré, and
has excellent in-camera performance, especially suitable for scenes such as TV studios,
lecture halls, etc.
More Quality, Less Consumption. Energy saving is achieved by a combination of four
technological innovations.Saving 40% energy under the same conditions, and practice
the “Absen Green” concept.

KLCOB V2 Series User Manual - 7 -
1.2 Product Specifications
Remark: Power consumption tolerance: ±15%, according to the actual situation.
Parameter
KLCOB0.7 V2
KLCOB0.9 V2
KLCOB1.2 V2
KLCOB1.5 V2
KLCOB1.8 V2
Physical
Parameter
Pixel Pitch (mm)
0.78
0.93
1.25
1.56
1.87
LED Type
Flip RGB
Panel Dimensions
(WxHxD)/(mm)
600×337.5×39.3
Pixel Per Panel
768×432
640x360
480x270
384 x216
320×180
Panel Weight (kg)
4.3
Panel Material
Die casting aluminium
Module Dimensions
(WxH)/(mm)
150 x168.75
Optoelectronic
Parameter
Brightness (nit)
600
Gray scale (bit)
20bit (internal
processing)
19bit (internal
processing)
20bit (internal
processing)
19bit (internal
processing)
19bit (internal
processing)
Refresh Rate (Hz)
3840
Contrast Ratio
15000：1
Color Temperature(K)
6500:
Viewing Angle (H/V) (°)
160/160
Driving Type
1/48
1/54
1/60
1/54
1/40
AC Operating Voltage (V)
100~240
Power Consumption
(Max./Avg.)(W/m²)
390/130
331/110
301/100
336/112
290/97
Application
Parameter
Storage Temperature (℃)
(℃)Storage Temperature
(℃)Storage Temperature (℃)
Storage Temperature
(℃)Storage Temperature
(℃)Storage Temperature
(℃)Storage Temperature
(℃)Storage Temperature (℃)
﹣40~﹢60
Operating Temperature (℃)
﹣10~﹢40
Storage Humidity (RH)
10﹪~85﹪
Operating Humidity (RH)
10﹪~80﹪
IP Rating (Front/Rear)
IP40/IP21
LED Lifetime (H)
100000
Module Maintenance
Front
PSU & Others Maintenance
Front
Panel Installation Type
Stacking/wall mounting/Hanging
Certificate
CE/FCC/ETL/UKCA

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1.3 Cabinet dimension figure(mm)
1.4 Module dimension figure(mm)
The module size is 150 x168.75mm,each panel has 8 modules.

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2．Product Components
2.1 Cabinet Introduction
2.2 Product Component Drawing
2.2.1 Mounting frame: used for wall mounting, including single and double frames.
2.2.2 Hanging bar: used for hanging installation ,Including double and triple frame.
Handle
Test button
Powerout
Position Pin
Installation screw hole
1X1 Single frame
1X2 Double frame
Screw
Double hanging bar
Triple hanging bar

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2.2.3 Connector plates and bolts are used for installations with steel structure.
2.2.4 Data Jumper for vertical connections in between cabinets (Standard Version),
300mm long.
2.2.5 Power cable
Specification：3×2.5mm²，10m
Specification：3×2.5mm²，0.9m，Used for adjacent column panel connections.
M6x35mm
M6x60mm
Cabinet connecting plate
Fixed connecting plate
“T” type power cable

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2.2.6 The module is separated from the panel, the 1 module carton contains a 48PCS
module, and the 1 panel carton contains 6PCS panels
3. Product Installation
In order to ensure the visual effect, the cabinets and modules need to be installed in the
exact position. The rules are as follows:
cabinet number: XX（Screen number）—XX（Row number ）—XX（cabinet number ）
Front side
Module 48 -in -1 carton packaging
Panel frame 6 -in -1 carton packaging
1-1-1
1-1-2
1-1-3
1-1-4
1-2-1
1-2-2
1-2-3
1-2-4
1-3-1
1-3-2
1-3-3
1-3-4
1-4-1
1-4-2
1-4-3
1-4-4

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Module number : XX（Screen number）—XX（Row number ）—XX（Cabinet number ）—
XX（Module number ）
3.1 Steel structure installation
Installation is from the bottom to the upper layer, first lock the connection screw between
the panel, and then use the connection piece and the M6x60mm screw to fix it on the
steel structure .
Front side
1-1-1-1
1-1-1-2
1-1-1-3
1-1-1-4
1-1-1-5
1-1-1-6
1-1-1-7
1-1-1-8

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After the panel is installed, confirm that the wire is connected, and then install the module
on the frame according to the rule number.
3.2 Wall mounting installation
Steps
Diagram
step 1:
Use M6 self-tapping screws or M6
expansion screws to fix the wall
mounting frame on a flat wall.
Step 2: Install the screw on the
mounting holes, and install 4
screws on each panel .
Step 3:
Install the panel frame (excluding
modules) on the wall mounting
frame . Install from bottom to top,
and complete the installation of
the inner connection piece .
Note: The left and right sides, top
and bottom of the panel are
locked and fixed with screws .

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3.3 Hanging installation
Use the screws connenct the hanging bar , The maximum lifting capacity cannot exceed
20 panels,and the inner connection pieces is needed.
Installation steps:
a. Fixed the hanging bar on the structure .
b. Align the screw holes of the panel with hanging bar and fixed the panel.
c. Install other panels, and tighten the screws in four directions .
d. Install the inner connection picces .
e. Complete the connection between the network cable and the power cable .
f. Complete the modules installation .
Iner connection piece

KLCOB V2 Series User Manual - 15 -
4．Product Cabling
Preparation before cabling
Before applying power and signal source to the screen, please check power and data
cables connections carefully and make sure they are wired correctly. Use a multimeter to
test the L, N and PE lines in AC power input port and make sure the three lines are not
short-circuited.
Inner connection piece

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Each cabinet contains a control card ( two for backup versions). The control card
receives signals from the controller to control each LED pixel. The control card is
composed of multiple components, including MCU, memory, interface chips, etc., and
can process data, store correction data, and also control the effect of the LED display.
Power and signal connections inside the cabinet

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Control card Indicators
Indicator
Color
Status
Description
Running
indicator
Green
Flashing once every 1s
The receiving card is functioning normally.
Ethernet cable connection is normal, and
video source input is available.
Flashing once every 3s
Ethernet cable connection is abnormal.
Flashing 3 times every 0.5s
Ethernet cable connection is normal, but
no video source input is available.
Flashing once every 0.2s
The receiving card failed to load the
program in the application area and is
now using the backup program.
Flashing 8 times every 0.5s
A redundancy switchover occurred on
the Ethernet port and the loop backup
has taken effect.
Power
indicator
Red
Always on
The power input is normal.
Power cord connection instructions: Please calculate and select the appropriate model of
distribution box or socket according to the maximum power consumption. Please consult
your electrician or distribution cabinet manufacturer for specific selection scheme. The
input voltage of the cabinet is 100-240V/AC. The 3X2.5mm2/14awg power cable is used
from the distribution box to the cabinet. Please confirm the input voltage, The number of
cabinets loaded on each power cable will be different upon different voltages and product
models. (Please feel free to contact our after-sales service department if you cannot
confirm).
Data and power wiring schematics are shown below:
4.1 Power Supply Wiring
When the input voltage is 220V, each power cable can carry up to 28 cabinets. When the
input voltage is 110V, each power cable can carry up to 14 cabinets. the cabinets are
connected with power cables of connecting cabinets, and then connect the distribution
box
or socket to the bottom of cabinet with 3 x 2.5mm²/14awg power cables.

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4.2 Signal Cable Wiring
The signal cable uses RJ45 CAT5 network cable, and the network cable interface of the
cabinet can be used for input and output. For the "S" type of up-down connection, please
calculate the resolution according to the pixels of each cabinet and connect the signal
cables according to the loading range of the controller.

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Usually led video wall consists of three important parts.
1. Computer: Send the video source to the video controller through the HDMI cable or
DVI cable. The LED cabinet does not display images by itself and requires video source
input.
2. Controller: The controller mainly converts the video signal into a signal that can be
recognized by the LED cabinet , and can config the LED cabinet through the controller,
including the adjustment of display parameters such as brightness, color temperature,
contrast, and the splicing of the LED cabinet .
3.LED cabinet : Each LED cabinet contains a control card and a HUB card. The control
card receives the signal from the controller and processes the data to controlling each
LED pixel. The HUB card plays the role of signal distribution.
Note: The range of loaded pixels of each net port cannot exceed 655360 points (as
shown in the following figure)
This product cannot store or display video content solely on itself. To perform normal
work , the screen requires video source from the output device such as PC, laptop,
media player, etc. and one or more controller to receive and feed the source to it.
4.3 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 theAC 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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5．Maintenance
5.1 Tool preparation
Maintenance
tool list
Tools
Function
Picture
Front
maintenance
tool
Install/Remove LED
Module
PH2 Phillips
screwdriver
Remove/install the
screws for the HUB,
receiving card and
power supply
Multimeter
Measuring power
supply system
5.2 Maintenance instructions
5.2.1 module maintenance
KLCOB V2 series modules can be quickly removed using passive front maintenance.
Open the handle of the front maintenance tool, place the front maintenance tool on the
surface of the faulty module to be taken out, pull up the handle of the front maintenance
tool, and then gently pull the maintenance tool outward to take it out module.
Note: Before maintaining the module, it is necessary to use a dust-free cloth to clean the
dust on the surface of the maintenance tool.
Picture