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Specific maintenance methods for LED display screen power supply
1. When repairing the LED display screen power supply, we first need to use a multimeter to detect whether there is a breakdown short circuit in each power device, such as the power rectifier bridge, switch tube, high-frequency high-power rectifier tube, and whether the high-power resistor that s...Read more -
The maintenance of the LED display screen power supply can be divided into two steps
(1) In the event of a power outage, ‘look, smell, ask, measure’ Look: Open the shell of the power supply, check if the fuse is blown, and then observe the internal condition of the power supply. If there are burnt areas or broken components on the PCB board of the power supply, the fo...Read more -
Poor load capacity of LED power supply
Poor load capacity of power supply is a common fault, which usually occurs in old-fashioned or long working power supplies. The main reasons are aging of various components, unstable operation of switch tubes, and failure to timely heat dissipation. Emphasis should be placed on checking for heati...Read more -
Analysis of Common Faults in LED Display Power Supply
(1) Fuse blown Generally, if the fuse is blown, it indicates that there is a problem with the internal circuit of the power supply. 1. Short circuit: A short circuit fault occurs on the line side, causing the fuse to quickly break; 2. Overload: If the load current exceeds the rated current of the...Read more -
Technical Characteristics of LED Display Screen for Rubik’s Cube Rotating Machinery
Mini wing rotating LED screen, also known as LED rotating Rubik’s Cube screen, is currently widely used in outdoor advertising, airports, exhibition halls, and other places. Mechanical cooperation with large screens has stronger three-dimensional effects. Generally, Rubik’s Cube rotat...Read more -
How to solve the Moore pattern in virtual shooting of LED display screens
Currently, with the gradual popularization of LED displays in performances, studios, and other applications, LED displays have gradually become the mainstream of virtual shooting backgrounds. However, when using photography and camera equipment to capture an LED display screen, the imaging image ...Read more -
How to measure and suppress the ripple of LED display power supply
1.Generation of power ripple Our common power sources include linear power sources and switching power sources, whose output DC voltage is obtained by rectifying, filtering, and stabilizing the AC voltage. Due to poor filtering, clutter signals containing periodic and random components will be at...Read more -
What are the advantages of COB compared to SMD?
SMD is the abbreviation for Surface Mounted Device, which encapsulates materials such as lamp cups, brackets, chips, leads, and epoxy resin into different specifications of lamp beads, and then forms LED display modules by soldering them onto a PCB board in the form of patches. SMD displays gener...Read more -
LED is an explosion light
Because LED is a solid cold light source, it has the advantages of high electro -light conversion efficiency, small heat transmission, small power consumption, and the working voltage is safe low voltage, long service life and other advantages, and low energy consumption. Therefore A very ideal e...Read more -
LED guide light
1. The LED rail lamp is based on LED. The LED light source is a cold light source, no radiation, no heavy metal pollution, pure color, high light emitting efficiency, low frequent flash, energy saving and healthy. Ordinary gold halogen guide rail lamps are based on gold halogen lamps as light sou...Read more -
LED explosion -proof structure
The explosion -proof structure type of explosion -proof lamp should be determined according to the regional level and scope of the explosive gas environment. If the explosion -proof lamps must be used in the area 1 area; the fixed lamps in the 2 area can use explosion -proof and increased safety....Read more -
LED performance characteristics
■ The lamps are unique with light, and the content of the irradiation range is uniform, and the irradiation angle is 220 degrees, which fully uses the light to fully use the light; the light is soft, no glare, and will not cause the eye fatigue of the operator and improve work efficiency. ■ The l...Read more