Outdoor LED display module maintenance instruction manual

Time:2018-11-29 Views:1130

More than one, LED display module, continuous light or no exception: check the first piece of abnormal signal direction module ribbon cable and power cable is well connected, such as no LED light module, indicates no power input, please check the power supply part (or multimeter to check), such as a design and color (color bright spot of the chaos) showed no signal input module, please check the first piece of abnormal module line input whether contact closely, can be repeated testing, if the problem still can change the new line.

2. Single module is not bright: check whether the power supply of the module is good, mainly to check whether the power socket on the module is loose.In case of color confusion or color inconsistency (but with signal input and correct picture) in the whole module, the signal transmission line is not in good contact with each other, replug and unplug the line, or replace the tested line.If you still have the same problem when replacing the good wiring, please check whether there is any problem with the interface of PCB board.

3. Detection method for single light failure of LED display screen: check whether the LED is damaged with a multimeter; if the light is broken, press item 5 below to change the light.Specific lamp measurement method: set the multimeter to resistance X1, the pointer multimeter black watch pen is connected to the positive pole of LED, red watch pen is connected to the negative pole (digital watch black pen is connected to the negative, red pen is connected to the positive), if the LED is bright, the lamp measured is good, if the light is not bright, the lamp measured is bad.

Iv. LED bad point maintenance (out of control point) : if LED damage is confirmed by single light detection, the following maintenance methods shall be selected according to actual requirements.

Positive maintenance: 1, with the corresponding models of screwdriver will be fixed mask from the front to get rid of the screw (note) keep good screw, remove the mask, in the light (follow the lamp method to change the lamp), after the changing light and colloid seals, recover the original mask, tighten the screws (please pay attention not to pressure on the screw lamp), the last is such as gel residue on the surface of LED please carefully clear gel.

2, LED display screen on the back of the maintenance: with the corresponding models of screwdriver to remove from the back of the screw (to keep good screw), pull the signal line, for safety please don‘t pull the power cable, to prevent accidental, carefully remove modules from sheet metal hole, moved to the back casing, then according to the positive maintenance methods of maintenance in the single module lamp (follow the lamp method change light) or the other.

Around five, in the light: will damage the LED colloid with sharp tools such as tweezers to get rid of, and make the LED stitches show clearly in the line of sight, the right hand with clips the LED tweezers, left hand with a soldering iron (temperature about 40 degrees, high temperature will cause damage to the LED) contact solder, and do a bit to stay (no more than 3 seconds, such as over time but does not meet the requirements of disassembly, please retry again after cooling) will solder melts, LED off with tweezers.Will meet the requirements of the LED lamp correctly inserted into a hole in the PCB, (long feet LED lights for the anode, short feet for the anode, the square hole on the PCB for LED anode pins jack, "hole" for the LED the cathode pins jack), will be a little solder wire melting, sticking on the soldering iron head, adjust the LED direction with forceps, make it smooth, connected the soldering welding in the LED and PCB, with the same type of colloid sealed LED (PH = 7).