How to repair a garland on your own?
One or more colors are off
One of the most time-consuming failures is the case when one or two colors do not work in the electric garland, for example, only red or yellow and blue, as in the photo below. This indicates that, most likely, the bulbs in the corresponding section burned out.
To begin with, we recommend that you disassemble the switch cover, which is also the control unit, and check the reliability of all connections - the contacts soldered to the board. Immediately we suggest watching a video lesson from the young master, which clearly shows what to do if the wire from the board breaks:
If everything seems to be in order, it means that with a high probability it is possible to judge that the bulb burned out. The fact is that modern garlands are arranged so that all single-color lamps are connected in series and if any lights up, the light will go out on the entire electrical branch. To fix the damage, it is recommended to act as advised by a good old textbook: cut the garland in half and ring both sections. Next, proceed in the same way with the idle section: cut by 2 and check again and so on to the end, as shown in the diagram.
As a result, you can determine which lamp is not working and replace it. We draw your attention to the fact that such a repair method is advisable to use if the electric garland is not separable, as a rule, Chinese.
To quickly repair the garland with your own hands, you can take a tester and instead of probes, attach needles to its ends. Using the needles, punch each of the sections of the chain sequentially so that the needle passes to the current-carrying core, and look for where the section resistance is significantly different. In this way, you can find a breakdown and repair it with less effort.
Old Soviet garlands on the Christmas tree (without box) in this regard are more convenient, because in them all the lamps are screwed into the cartridges, and it is possible to determine which bulb does not work without a soldering iron and an ohmmeter by eliminating it by taking a working light source and rotating it into all the cartridges one by one. Another repair method is to use a tester to measure the resistance of each lamp until you find a burned out one.
An example of a repair of another difficult malfunction:
Another way to fix a broken electric garland is to check the integrity of the common wire.On one side of the board, you will see 5 soldered wires: 4 for the glow of each of the colors and one common. Now, if the common wire breaks, you just need to solder it.
In addition to the light bulb, the reason that one or more colors in the garland is not lit may be a broken wire, which is responsible for a particular color. This problem most often occurs if there are cats or dogs in the house that gnaw through wiring when playing. In this case, you need to find the place of damage, re-twist the current-carrying conductors and insulate them. After that, it will not hurt to provide wire protection from pets.
Doesn't light up at all
If your LED garland does not shine, and you are convinced that it is not a matter of LEDs, then you already need to look at the control unit and the power cord. First, check the integrity of the cord, it may have been interrupted or the contact at the connection to the chip has broken. After that, check how all contact connections to the board are soldered. For example, in the photo below, one of the wires burned out. If everything is working, then the board burned out. You can, of course, buy a new garland if this one was cheap Chinese, but if you want to fix the product, now we will tell you how to do it.
Instead of a standing control unit, you can use a starter from a 127 or 220 Volt fluorescent lamp (the difference is only in the speed of flashing of the bulbs). First, check how the LEDs are connected. If it turns out that the extreme elements of the groups are interconnected by anodes, you will have to redo the circuit and connect the LEDs to the cathodes. This is due to the fact that for normal operation of the starter, the voltage to the anode must be supplied through a 5-watt resistor with a resistance of 15-20 kOhm. In addition, diodes will also have to be included in the circuit, as shown in the diagram below. Diodes are needed in order to pass the reverse current through the network through itself. In this way, you can redo it and thereby repair the LED garland with your own hands at home.
As you can see, you will have to bother to repair the product, so if the electric garland is Chinese, it is better not to waste time and buy a new one. About, how to choose a garland for a christmas tree, we told in a separate article. By the way, it is recommended to remake it as a starter even if the garland does not blink or does not switch modes and the controller is the reason for this.
We draw your attention to the fact that if a LED burns out in a Christmas diode lamp, after which the entire section does not light, solder a working element by strictly observing the polarity!
Light bulbs crashed
If one or more light bulbs are broken and you want to repair the product, we recommend simply replacing the damaged one Light source on new. We draw your attention to the fact that the replacement should be done only when the power is off, so as not to get an electric shock. In this, of course, unbreakable lamps are better, because such a malfunction bypasses them.
If you do not have a spare microlamp on hand, you can safely cut the broken one and connect the wires without it.
Well, the last thing I wanted to say - if your tubular garland (duralight) does not work, try visually and using a tester to find the problem area and cut it in places intended for cutting (marked with scissors). After that, connect the working sections with special connectors, on which the repair will be completed!
That's all I wanted to tell you about how to fix a garland if one color is off or the board burns out. Now, you know what to do to repair the damage yourself!
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