Contents
control Economy andThe design in the field of lighting has brought advanced technology to almost every home. Many are changing the usual socle chandeliers to economical LED products. Not everyone knows how to repair the LED lamp yourself, especially from what parts it is inside. How to use the tool for breakdown, where to start the whole process. Let's try to understand in detail what are the breakdowns in the devices and how some LED chandeliers are repaired by their own hands.
Types of breakdowns and their causes
- Typical breakages: partial or total absence of illumination, brief flashing or spontaneous disconnection, failure. Causes: The temperature reached above 50 degrees, the contact of the thread itself and the holder, if the option is paid for, and not the lamp one, the peeling of the contacts on the board.
- Burned LED, partially or completely. Reason: Overvoltage in the network, the capacitor has blown( breakdown).Usually a breakdown occurs in cheap board options.
- There are additional reasons that lead to the failure of the device, namely: short-circuit in the circuit, improper connection to the network, non-compliance with the connection diagram of the device during installation.
- Bad soldering of the contacts of the circuit, LEDs to the board, weak fastening of the wires in the base of the lamps. Weak soldering of conductive elements( wires, tires).Reason: Factory defect. Repair of many LED chandeliers with a control panel is for this reason.
Preparing for repair of LED
devices Before you repair the LED lamp, the instrument must be removed. It will take some tools;screwdriver thin with a flat end, cross-shaped. If the connection was assembled with twists, you need mites with insulated handles, an insulating tape and a multimeter to check the contacts. The tweezers are useful in working with small details.
Need a soldering iron with a thin sting and solder( preferably use a special nozzle).A drill with a 2.5 mm drill can also come in handy, detach the base part of the lamp by drilling the fasteners. Several thin wires of 10 cm, length.
Attention! Conducting electrical work without a special protected tool is prohibited!
Construction of LED chandeliers and visual inspection
With the control panel chandeliers appeared not so long ago. Few people are familiar with their device. When repairing LED ceiling chandeliers, you need to know the design, just in general terms. Let us see in more detail what it can consist of.
- A simple LED chandelier consists of a casing, a regulator unit or a driver. It is used as a voltage rectifier. It contains the terminals, or terminal clamps, to which the mains power is connected. Then the wires go to the lamps from the block. They can be from one wire, under an ordinary lamp, up to 12 under a design version of the device.
- A more complex version of the product, consists of an antenna, a light control unit, a voltage regulator or several units that conduct automatic tuning. In raster luminaires there may be several drivers and different types of LED elements, lamps. Checking and repair of components depends on the specific type of lighting device.
Why you need to know or figure out the design before you start repairing the LED chandelier. The reason is simple, you need to determine where the control units are located, inside the chandelier or in the light element itself, the lamp. Here we need the same scheme of chandeliers with LEDs.
Repair of LED chandelier working without a remote control is easier. There is nothing complicated in it, they are collected in one type: one or more diodes( a compact bridge is possible), electrolytes( capacitors), a pair of resistors( resistors), and a coil with a winding. This is a simple scheme without protection, there are many variants of them, but we will now analyze the simplest scheme.
- After removing the lamp, inspect the board for visible defects, broken wires, about
, the absence of such a good sign. - Remove the plafond or decoration around the lamp, unscrew the lighting elements. Look at the basement, burnt places say bad contact. If they are, try to clean them with a knife.
- Repack the terminal blocks, or twists, tighten the screws on all the details. Without detecting visible defects, we turn to the inspection of the lamps. The option of a block lamp, where relays and lamps are located side by side on a large board, is treated as a lamp repair described below.
- Repair of LED chandelier with their own hands begins with the determination of the place of breakage or breakage.
The easiest way to check the LED circuit of the
- lamp Fix the lamp with a smaller diameter plastic bottle, cutting and inserting the lamp into it.
Supply power better separate power supply, to the lamp, if it is 12 or 24 volt nominal. Call the device you need all not damaged LEDs in the circuit. But the method is easier, connecting the lamp to the power supply to carry out simple manipulations with tweezers.
- Alternately close( jumper jumper) contacts of each LED with tweezers or wire with stripped and tinned contacts.
- The lamp will light up when you find( close the contacts) on the burnt-out LED.In case this did not happen, look further along the chain.
- It is not necessary to buy a new LED, fix it simply, throw a small jumper between the contacts. Be sure to remove the remnants of the burnt part of the LED, clean the card of the deposit, it's about
. Block LEDs, modular
drives electricity.
Check the board for the cause of burnout, blowing up the capacitors, check carefully the tracks on the board regulator itself. Solder the broken contacts.
Important: It is not possible to replace the LED with a jumper when there are less than 10 of them in the common circuit, capacitors will overload, block LEDs will burn when there are 3 pcs.
You can define them by three dark points, inside a yellow or white crystal.
Removing a broken chandelier with remote control
Often the repair of LED chandeliers must be done due to overheating of the matrix itself. First unscrew the fasteners and visually inspect the inside of the chandelier. Then gently try to move the board, in place. Determine whether there is a break in the wires from the control unit, whether the wire has burnt out from overvoltage. If burnt out, braze into place. We check in turn all the details. 
Then you need an original scheme of the chandelier. Without it, you can repair only the chandelier without remote control. If there is a remote control unit, the batteries are replaced with new ones. LED chandeliers with control panel are often found, here you will need to identify the breakdown, the exact scheme of the chandelier controller. 
The control unit of the chandelier is usually tightly sealed in a shell, and manufacturers draw diagrams on it. Only these are the circuits for connecting wires and lighting elements.
There are also blocks with a dismountable body, then the option is simplified. With the non-dismountable block, we call using the tester the output signal to the lighting elements( LEDs).If there is no voltage supply, the cause may be in the failure of the signal receiver. We disassemble it, check visually the contacts and tracks on the board, the integrity of the parts. If the voltage is applied to one branch of the light, it means a breakdown in the control unit, and not in the receiver itself.
Burned out detail can be dropped and ringed, to begin with all the resistance( see diagram), putting on the device an OM badge. Then the capacitance of the capacitors, the benefit of them is the designation, polarity and appearance is also important for verification.
Designation on the
diagram If a mismatch is found in the nominal value, solder it.
The chandelier control unit is responsible for the intensity and burning conditions of the LED elements. Violation of one of the circuits( in the plafond version of the luminaire), does not disable the unit, perhaps a fuse has blown.
But still, check the blocks, if there are melted places on them, there is, replace it with a new one. If the wiring is incorrectly connected, only the parts in the power supply unit are lit. The regulator unit is protected from excessive loads. You can call him according to the scheme. 
cooling radiators Many models of regulators, drivers and power supplies of LED lamps come with cooling radiators. They made a seat, through which the chip or other control element gives off heat. Most radiator lamps are present.
No special lubrication, thermal grease, the reason for overheating of the majority( up to 15%) of boards and blocks. Unscrew and check whether it is applied to the plane of the seat.
Advice: The thermal paste is applied in a thin layer over the whole surface of the seat, a large amount will only worsen heat transfer. By screwing an additional plate of thin aluminum to the radiator, it is possible to increase the heat transfer, while the installation is carried out without blocking the main air flows passing through it.
Conclusion
As we see nothing ordinary in the repair of LED ceiling chandeliers, no. It's not so difficult to do it yourself. You need a little patience, a little practice and a tin of knowledge. Of course a variety of lamps, lamps and all kinds of chandeliers, will not make us bored in the process of repair. But in this amount of detail, we will be helped to figure out the exact scheme of the LED chandelier and of course a huge desire.
