The music center does not turn on
Modern household appliances, due to the use of small and fragile parts in their design, are sometimes too “gentle” to handle and break down quite often. Music centers in this regard are far from an exception. However, in order to repair the MC, sometimes it is not necessary to take it to the service center - sometimes you can fix the breakdown on your own. This article will talk about what to do if the music center does not turn on.
The content of the article
Reasons why the music center may not turn on
Before you pick up a screwdriver and a soldering iron, it’s worth understanding why the device might have stopped working. Among the most common, most service center specialists identify the following:
- Mechanical damage to the “filling” of the MC due to falls, impacts, shaking and other external influences.
- Development of parts resource.
- Using low quality media.
- Damage to the boards or power supply after sudden changes in voltage in the electrical network.
- Viruses on media.
IMPORTANT! Experts say another common cause of breakdowns is attempts to disassemble the device on your own in order to clean it of dust. In order for the MC to serve for a long time, its cleaning must be trusted only to professionals who have experience working with such equipment.
What to do if the music center does not turn on
In order to understand what exactly caused the failure of the MC, it is necessary to carefully inspect the device body and wires for mechanical damage. The presence of voltage in the wires going to the speakers can be easily checked using a screwdriver with a tester. Also, in order to localize a breakdown, you can connect a working speaker from any other equipment to the base. If the sound does not play, then the reason definitely lies in the device itself.
If no external damage is found, and the speakers work properly with another device, it is worth disassembling the device body. In order to do this, you need to use a Phillips screwdriver to unscrew all the mounting bolts of the case, and then remove its back panel. This will help you get to the central board of the MC and inspect it.
If during disassembly you notice a strong burning smell from the device’s power supply, then most likely the fuse has blown. In order to avoid having to change the entire power supply, you should look at the rating of the failed fuse in the operating instructions or on the device itself and replace it with a suitable one. If the rating of the part being replaced does not match the value set by the manufacturer, then one of the channels may subsequently fail.
INAWESOME! If the user does not have any skills in radio electronics, all manipulations that involve working with a soldering iron, replacing electronic boards and small parts are not recommended, as this can only aggravate the breakdown.
When inspecting the main board, it is worth inspecting the input connector. If there are outgoing contacts and damaged soldering, use a soldering iron to restore the wire contact.For such purposes, specialists most often use solders with low melting points, so as not to damage small parts of the board.
Particular attention should also be paid to the capacitors: if the sides and tops are slightly swollen, they need to be replaced. The cause of the breakdown will not necessarily be one swollen capacitor, but if it is not replaced in time, then soon the MC may again require repairs, and much more serious ones.
If the device turns on, but plays audio files with significant noise, then the reason may be a malfunction of the power amplifier chip. In order to find out for sure, the device should be started and sound played in every possible mode. If the same interference occurs in both the radio and MP3 playback, the amplifier chip must be replaced.
After all repair operations have been carried out, the device must be reassembled in the reverse order and run to check its functionality.
It often happens that the MC itself turns on and functions, but one of the speakers does not reproduce sound. The reason for this is most often a malfunction of the speaker speaker, which can be caused by:
- formation of condensate on the membrane;
- broken wires on the diffuser;
- debris caught between the coil and magnet;
- demagnetization;
- physical damage to the membrane.
To eliminate condensation, you can try heating the membrane using an incandescent lamp. If the membrane is damaged, then its performance cannot be restored and it must be replaced.
As you know, it is easier to prevent a malfunction than to correct its consequences.In order for the MC to serve for a long time, it must be cleaned from dust from time to time and the necessary parts lubricated, as well as kept away from heating devices and prevent foreign objects and liquids from getting into the disc tray.