LED roller blind advertising light box, light bar flash, broken and not bright, what is going on?

An ultra-thin light box , plugged in and flashed the light box, it does not light up, I don't know what happened?

When encountering such a problem, you don't need to hurry to find a light box factory for home repair, because the general light box manufacturers should not have this home repair service, then the customer needs to do:

1. Review: First think about why the light box will suddenly not shine? Is it directly plugged in with a 220V voltage supply? Or have you taken the wrong power supply?

2. Self-test: first check whether the direct connection between the power supply and the light box is loose, off-line, etc., then check the current amperage of the power supply and check whether the power supply is burned? Then check whether the light source has a short-circuit related problem, and check whether the LED light source of the light-emitting box is short-circuited. With the gradual expansion of the application range of aluminum alloy ultra-thin light boxes in the market, it has gradually gained the attention of many merchants, but some merchants will find that some aluminum alloy ultra-thin light boxes will not appear enough after a period of use. The bright situation seems to be very dark, and for this reason, its promotional effect has to be discounted.

What is the cause of the problem that the brightness of the aluminum alloy ultra-thin light box does not brighten? Here, Xiaobian will take you to explore the aluminum alloy ultra-thin light box, for your detailed analysis of the reasons for its lack of light.

Want to find out the reason why the aluminum alloy ultra-thin light box is not good, the first is to determine whether the local is not bright or the overall brightness is not enough.

Local light is usually divided into two cases:

1. Partially bright and partially dark. This is usually caused by the light guide plate. It is necessary to replace the light guide plate to solve this problem. Moreover, the current light guide plate is also divided into many types, among which acrylic materials and PS materials are common. Two kinds of light guides among the many light guide plates on the market are light guide plates made of acrylic materials.

2, part of the bright, part is not bright, this situation is usually a problem with the light source, so the need to replace the light source.

There are usually two situations when the overall is not bright:

1. The problem of the light guide plate and the power supply may be that the quality of the light guide plate may also be the quality of the light source.

2, may be the problem of the picture, many people will confuse the photo with the light box, replace the light box with the photo, which will also cause the whole picture to be not bright enough. To solve these problems, the aluminum alloy ultra-thin light box can achieve the best publicity effect. .

Lightbox never shines

This situation is basically a problem with the power supply, or there is no transformer installed in the advertising light box. Check the external power supply first, then test the advertising light box power with an electric pen. If this is the case, open the advertising light box and check if the offline source and the light tube are detached or loosened. (This phenomenon is usually for the light tube or EEFL slim light box. The solution is to check each light. tube). If not, it is possible that there is no transformer installed in the light box (this happens rarely) and the direct connection of the lighting voltage causes the light source to burn out.

Lightbox does not light when it is lit

Check if the LED drive power (transformer) is broken and the terminals and plugs are aging.

The following describes the specific operation of the advertising light box does not light self-examination:

If it is not bright, use the multimeter DC 250V file, the black meter pen is connected to the green line, the red meter pen is connected to the red line. If the indication is beating or at 200-220V, the controller is normal; the black test pen does not move, and the red test pen measures the voltage at each end of each led. If the voltage difference between two LEDs is very large or no voltage, it indicates that the LED is damaged and try again after replacement.

3. Consult the manufacturer: Do not call other manufacturers at this time, you should consult the manufacturer who buys the light box. Generally, the regular factory shipment will have a certain warranty period and after-sales service. You can tell the manufacturer about your situation at this time. The manufacturer will analyze according to your situation.

Generally speaking, the above 3 points, your problem should be solved. In fact, most of the cases where the ultra-thin light box is not bright are mostly caused by direct contact with the 220V power supply, causing the power supply to burn off or the manufacturer's power supply current supply is insufficient. The power supply burns out two kinds of situations, and the problem of the light box itself is still relatively small.

LED light box maintenance

1. The operator must wear pure cotton white work gloves when disassembling the light box. Because there are oil, salt, acid, alkali and other ingredients in the sweat, it is corrosive. Sticking to stainless steel will slowly corrode the stainless steel surface, so that the stainless steel surface will slowly fade away and lose its original beauty:

2, when disassembling the outer frame of the light box, it must be handled gently, no collision and distortion, and the outer frame should be placed on the ground;

3, unplug the plug, disconnect the power supply (do not use the leakage protector as a power switch), and then check the original electrical components (disabled for live operation); require careful inspection, such as power cord entry hole, ballast input , output terminals, wires on the lamp holder, etc.;

4, the size of the light box must be consistent with the size of the light guide plate, not too large or too small, so as not to affect the display effect and the heat inside the light box.

5. When installing the outer frame of the light box, take it lightly, flatten it, and hang it flat, then close the lower part of the light box and fix it with a hexagon socket screw;

6. Then check whether the power cord on the upper part of the light box is in the slot of the power supply, if no correction is needed;

7. Plug in the power plug and close the main power switch to see if the light is normal. If there is a bright side and no light, please disconnect the power supply, unplug the plug, and check the lamp socket wire. The lamp is not loose. Whether the input and output wires of the ballast are loose, etc.

8. If the whole light box is not bright, please check if the leakage protector is closed, whether the wire connector inside the plug is loose, whether the pressure input and output connectors are loose, etc.

9. If the leakage protector does not meet the potential, please check whether the power cord enters, the ballast and the branch circuit under the lamp are leaking;

10. If there is too high noise in the light box, please check if the ballast is aging;

11. If the light box is bright or not bright, please check the LED power supply , whether the terminals and plugs are aging, whether the lamp is in place or aging.

Wall cleaning of ultra-thin led light box

Now there is a very remarkable feature of this environment. It is dusty and dusty. You can find that a thin layer of dust is on the outside of the window for a while, especially the air pm2.5 index of many big cities reminds you more or less. Pay attention to the health of the air environment. This article will briefly introduce the cleaning of the slab of the ultra-thin light box. Don't look down on the cleaning. Do a good job. There is a lot of knowledge here.

If the wall and bottom plate of the ultra-thin light box are covered with a lot of dust or stains and dirt on the surrounding area, you can use a clean soft cloth to gently wipe the water. After the water is dry, the dirt can be removed. . It is strictly forbidden to use hard objects to cut, scrape and decontaminate with chemicals, so as not to damage the light absorption layer on the inner wall of the light box. Please pay attention to the ultra-thin light box with light absorption layer. It is strictly forbidden to say that the water gun is cleaned and sprayed. Although the light box has a certain waterproof level, The pressure of the water gun may leak out of the waterproof layer to damage the internal lamp and the circuit board, and it should be powered off as much as possible for cleaning. This is for your safety considerations. Some people are injured because of this, especially for a long time. There may be no small hidden dangers.

Outdoor advertising light box installation skills

1. First determine the location of the light box installation, and determine the installation method according to the actual situation and the type of light box.

2. Measurement size: Determine the fixing point of the installation light box according to the position of the mounting hole on the back of the light box or the actual size of the site.

3, fixed light box:

A) The wall surface of the site is aluminum-plastic plate, wood plate, iron plate, etc., which can be directly fixed with self-tapping screws;

B) The wall surface of the site is cement or brick wall, which can be punched first with impact drill and then fixed with expansion screws;

C) The wall surface of the site is tile, marble, glass, etc. The glass drill bit can be used to drill through the surface, then the expansion screw hole is drilled, and then the light box is fixed or glued.

D) Light boxes that need to be hoisted or suspended on site. After selecting the installation location, determine the fixing point of the installation light box according to the actual size of the installation hole of the light box, then install the hanging parts and connect the ground wire.

4. Wiring: The outlet end of the normal light box power cord is on the back. If the power supply on the site is on the back of the light box, you can cut off the plug of the power cord, connect it directly, and fasten the power connector with insulating tape; if the power supply is installed Outside the position of the light box, the outlet wire of the light box power supply can be connected to the edge of the light box, and then the three-phase plug is inserted into the power socket provided;

5. Fix the light box: Open the upper cover of the light box and install it at the fixed point (ie use the electric drill to drill the power line at the base of the light box, reinstall the power line, and adjust it to the horizontal state with the level);

6. Power on and light, clean the surface of the light box.

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