Absen LR3.9-7.8 User Manual

Absen LR3.9-7.8

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LR3.9-7.8 User Manual

High transparency

Lightweight

Fast operation

Curved design

High refresh

rate

Table of Contents

Questions and Answers:

D
David RobinsonAug 4, 2025
What to do if my entire Absen LR3.9-7.8 Projection Screen is black?
- F
  fbensonAug 5, 2025
  If your entire Absen Projection Screen is black, first ensure the screen power is on. Then, check if the DVI or HDMI cable is loose, and verify that the main data cable is tightly inserted. Also, check if the sending card is powered on and if its running indicator is flashing. If these steps don't resolve the issue, try connecting the computer to an LCD display to check for video card output, updating the video card driver, or replacing the sending card or the computer.
L
Laura MartinezAug 10, 2025
Why does my Absen LR3.9-7.8 Projection Screen show a scrambled image?
- L
  leah29Aug 10, 2025
  If your Absen Projection Screen shows a scrambled image, begin by checking whether the receiving card's power plug is securely inserted and that the power cable isn't burnt out. Also, verify the power supply is outputting correctly. Then, inspect the data cable of the receiving card, replacing it if necessary. If the issue persists, try sending the rcfg file or upgrading the firmware version of the receiving card. As a last resort, consider replacing the receiving card.
N
Nicole JohnsonAug 17, 2025
How to fix black modules on my Absen Projection Screen?
- M
  mike33Aug 17, 2025
  If some modules on your Absen Projection Screen are black, check the following: * Ensure the power plug of the module is tightly inserted. * Verify the power cable of the module is not burnt out. * Confirm the switch power supply of the module has output. * Check if the flat cable of the module is malfunctioning. If so, replace it. If problems persist, replace the module or the receiving card. You may also need to send the rcfg file.
V
vfitzgeraldAug 23, 2025
How to resolve chromatic aberration between modules on Absen LR3.9-7.8?
- B
  Brittany WeaverAug 23, 2025
  If you notice chromatic aberration (color differences) between modules on your Absen Projection Screen, start by checking that the module power plug is firmly plugged in. If the issue persists, try replacing the flat cable, the power supply, the module itself, or even the receiving card.
B
Bryan VanceAug 28, 2025
What to do if all panels on my Absen LR3.9-7.8 display the same content?
- J
  Juan BrownAug 28, 2025
  To resolve the issue where all panels on your Absen Projection Screen display the same content, set the screen connection on the software. Also, check whether the data port is connected to the correct port.

Absen LR3.9-7.8 Specifications

General

Brand	Absen
Model	LR3.9-7.8
Category	Projection Screen
Language	English

Summary

Safety Information

Beware of Electric Shock!

Essential precautions to prevent electric shock during installation and operation.

Beware of Fire!

Guidelines to prevent fire hazards related to power supply and ventilation.

Beware of Injury!

Safety measures to avoid physical injury during installation and handling.

Product Disposal

Information on recycling and proper disposal of product components.

Product Introduction

Product Main Features

Overview of key features like transparency, weight, and design.

Product Specifications

Cabinet

Cabinet dimension figure

Diagram illustrating cabinet dimensions for installation planning.

Cabinet structure description

Description of the internal structure and components of the cabinet.

Module

Module dimension figure

Diagram showing the dimensions of individual LED modules.

Features of Module

Details on the design and construction of the LED modules.

Power Supply

Power Output characteristics

Specifications detailing the voltage and current output of the power supply.

Power Input characteristics

Specifications detailing the voltage, frequency, and current input for the power supply.

Receive Card

Product Installation

Preparation Before Installation

Environmental requirements and preparation steps before installing the product.

Cabinets Splicing

Methods for horizontal, vertical, curved, and 90-degree splicing of cabinets.

Hanging Installation

Steps and considerations for installing the LED cabinets using a hanging structure.

Fixed Installation

Steps and requirements for permanently mounting the LED cabinets.

Product Cabling

Attention of Cabling

Important notes and considerations regarding the connection of power and data cables.

Wring Diagram

Schematic diagram illustrating the electrical connections between cabinets.

Maintenance

Preparation of Maintenance Tools

List of tools required for performing maintenance procedures.

Module Maintenance

Procedures for the rear maintenance of individual LED modules.

Power Supply Maintenance

Procedures for the rear maintenance of the power supply unit.

Receive Card Maintenance

Procedures for the rear maintenance and replacement of the receive card.

Hub Maintenance

Procedures for the rear maintenance of the Hub card.

Flight Case

Common Faults and troubleshooting

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