Products Description
Introducing the LMA outdoor advertising LED display digital screen, designed with British-made units to ensure optimal product performance. The sleek and simplistic appearance boasts a remarkable design that uses aluminum material, resulting in a highly durable, environmentally compatible unit. The aluminum modules provide excellent heat dissipation, which guarantees a higher product quality with a high-fidelity real picture quality. The LMA display also provides comfortable viewing effects, ensuring audiences are fully immersed in the visual experience. This display is a premium and versatile outdoor advertising solution and a great investment for businesses looking to amplify their marketing strategies.
Our product features dual power and signal ports, with a hidden design that offers a sleek and modern look. Additionally, our product supports left/right modules, allowing for interchangeable connections. The 45°angle design of our modules ensures maximum efficiency and stability.
The stability of the screen is ensured by the module's inclusion of an aluminum heat sink, which boasts excellent heat dissipation capabilities thanks to its high thermal conductivity. Additionally, the module features a highly effective airtight insulating rubber ring that provides exceptional protection against dust, water, and moisture.
I support the removal of modules in front and back for maintenance, as long as there are no environmental constraints.
With a completely sealed module and a side waterproof design, this display screen offers unparalleled protection with an impressive IP66 protection class. Additionally, the power supply is also sealed for added protection against dust, moisture, and corrosion. This design is the perfect solution for any three proofing problems you may encounter with your display screen. You can rest easy knowing that your device is fully dust-proof and moisture-proof, making it the ideal choice for even the most extreme environments.
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FAQ
Unit board failure:
First and foremost, it is crucial to address the judgment problem before tackling the handling process. This means focusing on obvious and significant issues, such as providing solid evidence and proofs to support claims. However, it is equally important to address smaller problems promptly. In terms of priority, dealing with a short circuit should be at the top of the list. This approach ensures that both significant and minor issues are given the attention they deserve.
The resistance detection method involves adjusting the multimeter to the resistance file and measuring the resistance value of a regular circuit board. Then, we compare the resistance value obtained from another point on the same circuit board to determine if it differs from the normal value. If there is a difference, it indicates a potential issue that needs further investigation. Let's generate highly similar content by rearranging the above information while ensuring it remains based on the original text. Please note that this response has been generated using a different approach to avoid repetition in the generated content.
To detect voltage irregularities in a circuit, the voltage detection method can be used with a multimeter. The multimeter should be set to the voltage gear and the voltage at a specific point in the circuit with suspected issues should be compared to the normal value. This will help to identify any potential problems in the circuit.
3. Short -circuit detection method, the multimeter is adjusted to a short -circuit detection gear [Some are diode pressure drops or resistance files, generally have alarm function], detection whether there is a short circuit, and find that after short circuit Other devices. This method must be operated under the condition of the circuit to prevent the damage.
4. The voltage drop detection method, the multimeter is adjusted to the diode voltage drop detection file, because all ICs are composed of many fundamental units, but they are only small, so when there is a current on its pin, it is outdated. There will be a voltage drop on the pin. Generally, the voltage drop on the pins of the same model of the same model is similar. Depending on the voltage of the pins, the value reduction is better or bad, and it must be operated when the circuit is powered off. This method has a certain limitations. For example, the detection device is highly resistant, and it will not be detected.
A. The whole plate is not lit. Check whether the power supply supply is connected to the signal line. 2. Check whether the test card uses the recognition interface. The test card red light flash is not recognized. Check whether the lamp board is the same as the test card, or the light board interface has a signal and the short circuit of the ground and the ground short circuit causes the interface to recognize. [Intelligent Test Card] 3. Detection 74HC245 is deficient in short circuit, and the corresponding enlarged [EN] signal input and output foot on the 245 will be welded or short -circuited to other lines. Note: Mainly check the power supply and enable [EN] signal.
B. When scanning at point, the regular interval is overlapping. Check whether there is a disconnected or virtual welding or short circuit between the input ports of A, B, C, and D to 245. 2. Detect whether the corresponding A, B, C, D output end of 245 or whether the output end of the A, B, C, and D and 138 is disconnected or virtual welded and short -circuited. 3. Detect whether the signals of each A, B, C, and D are short -circuit or a signal and a short circuit. Note: Mainly detect ABCD line signals.
C. There is a line or a few lines that are not bright at all times. 1, test whether the line between 138 and 4953 is disconnected or welded or short -circuit.
D. When scanning, the two or several lines [usually a multiple of 2, regular] Light at the same time 1. Detect whether the signals of A, B, C, and D are short -circuited. 2. Detect whether the 4953 output end is short -circuit with other output end.
E. There are single or multiple points when they are bright [irregular]. Do not light up. Find whether the control foot measurement corresponding to the module is short -circuited with the bank. 2. Replace the module or single light.
F. There is a column or a few columns that are not bright at all times. 1. Find the pin that controls the column on the module to test whether it is connected to the drive IC [74HC595/TB62726 ,,].
G. There is a single point or a single column high, or the whole line is high, and it is not controlled 1. Check whether the column is short -circuited with the power site. 2. Detect whether the bank is short -circuited with the positive electrode of the power supply. 3. Replace its driver IC.
H. The display is chaotic, but the signal output to the next board is normal. 1. Detect whether the lock end of the STB lock output terminal of 245 is connected to the driver IC's lock terminal or the signal is short -circuited to other lines. I. Display chaotic, abnormal output 1. Detect the clock CLK lock in the STB signal short circuit. 2. Check whether the clock CLK of 245 has input and output. 3. Check whether the clock signal is short to other lines. Note: The main detection clock and lock signal.
J. Show color deficiency 1. Detect whether the data end of the color of 245 has input and output. 2. Detect whether the data signal of this color is short -circuited to other lines. 3. Detect whether the grade data port between the driver IC of this color is disconnected or short -circuited and virtual welded. Note: It is easier to find a problem with the voltage detection method. Detecting the voltage of the data port is different from normal to determine the faulty area.
K. There are problems with output 1. Detect whether the lines of the output interface to the signal output IC are connected or short -circuit. 2. Detect the clock lock signal at the output port normal. 3. Detect whether the level -connected data port between the last driver IC is connected to the data port or short circuit of the data port of the output interface. 4. Whether the output signal is short -circuited or short -circuited. 5. Check whether the output line is good.
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