Why periodically there is no sound on the speakers of the music center LG

Why periodically there is no sound on the speakers of the music center LG

Music center LG CM8450

The LG music center works, then there is no sound output to the speakers (5 years for the device in the country). How serious is the reason?

Igor

Specialist's answer

The reason may be a breakdown of the contact at the output of the device or overlapping of conductors going to the speakers.

In a more serious case: the output sockets detached from the printed circuit board inside the music center. Repair requires soldering iron and soldering materials (flux and solder). The center will have to disassemble and visually inspect the soldering points of the output terminals. The solder layer and the printed conductors must be free of faults (cracks, tears). The terminals in the holes of the PCB should sit tight.

Suspicious places need to disappear. Cracks in printed conductors are eliminated with the help of a piece of thin copper tinned wire. The main thing is not to overheat the board, so that the tracks do not peel off, and to prevent the adjacent conductors from closing by excessive solder.

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