LED display Daily Maintenance Measures

During the use of outdoor led display screen, there are many causes of damage to the outdoor LED display screens. They need to be waterproof, dustproof, heat dissipating, anti-corrosion, anti-static, anti-lightning, anti-small animals, and they are need to be maintained and overhauled regularly .

Multi-block LED display modules are bad:

Check whether the signal of the LED display module is in good connection with the power cable. If there is no LED on the module, there is no power input. Please check the power supply (check with a multimeter). The bright spot) indicates that the module has no signal input. Please check whether the input terminal of the cable of the first non-normal module is in close connection. You can remove and insert to test it with several times. If the problem is still exist you can replace the new cable.

Single LED display module is bad:

Check whether the power supply of the module is good, mainly to check whether the power socket on the module is loose. If the entire module has color confusion or color inconsistencies (but there is a signal input, there is a correct picture) for the signal transmission row County bad contact, re-inserted cable, or replace the tested cable. If you have a good replacement cable, it still has the same problem, please check the PCB board interface.

Single LED lamp is not light:

Use a multimeter to check if the LED is damaged. If the lamp is broken, change the lamp. Specific measurement methods: put the multimeter into the resistance X1 file, the black port of the pointer multimeter is connected to the positive pole of the LED, the red port is connected to the negative pole. If the LED is light, the measured lamp is OK, if the lights are not on, the measured light is bad.

LED bad point maintenance:

After a single lamp test confirms that the LED is damaged, the following maintenance methods are selectively used according to actual needs.

Frontal maintenance: Remove the fixed mask screw from the front with a corresponding type of screwdriver (be careful to keep the screw), take the lower cover, and change the lamp (please change the lamp according to the following lamp replacement method). After the lamp and colloidal seal are finished, the The original mask is restored and the screws are tightened (be careful not to press the lamp when tightening the screws). If there is any glue remaining on the surface of the LED, please carefully remove the colloid.

Rear maintenance: remove the screws from the back with the corresponding model screwdriver (remember to keep the screws) and unplug the signal cable. For safety, please do not unplug the power cable to prevent accidents. Carefully insert the module from the hole in the plate. Take it out, move it to the back of the cabinet, and then perform maintenance on the individual modules according to the front maintenance method to change the lamp (please replace the lamp by changing the lamp method below) or overhaul others.

Change LED lamp:

Remove the glue around the damaged LED with a sharp tool (such as tweezers), and make the LED pin clearly visible in the line of sight. The right hand clamps the LED with a tweezers, and the left hand uses a soldering iron (a temperature of about 40 degrees Celsius, the high temperature will be LED damage), Connect with solder, and stay for a little while (no more than 3 seconds, if it does not reach the dismantling requirement after exceeding the time, please cool down and try again) Melt the solder and remove the LED with tweezers.

Take the LED lamp that meets the requirements into the hole of the PCB circuit board. (The LED lamp's long leg is positive and the short leg is negative. The PCB's "square hole" is the LED positive pin socket. The "round hole" is LED's. Negative electrode pin jack) Melts a little solder wire and sticks it on the soldering iron head. Use tweezers to adjust the LED direction to make it smooth. Solder the LED and the PCB. Use the same type of colloid (pH = 7) to seal the LED.

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