Advice 1: How to fix music center

Many hams-beginners are afraid to take on the repair of such equipment as computers, iPods or stereos and carry them to service centers in case of breakage. But to actually fix music center own is not too difficult. If you have a basic knowledge of radiomechanic and skills work with tools such repairs are not difficult.
How to fix music center
Instruction
1
Check the source of the faulty music center. The most frequent and obvious failure can be associated with the violation of his settings or the absence of sound as such. Check speakers (speakers) tester for the presence of voltage.
2
Use a valid column from the other equipment to make sure that the reason for the disappearance of sound is not in the center. If after you connect good speakers, sound is still there the problem is in the music device.
3
Disassemble the case of the music center. To do this, Unscrew all the mounting screws Phillips screwdriver and remove the rear cover of the device. So you get to the main Board and will be able to inspect.
4
Inspect the connection of the input connector and copper conductor tracks on the main Board of the music center. A soldering iron will restore the solder in those places where it is damaged. It is better to use low temperature solders, melting at 100 degrees, or even conductive adhesive, so as not to compromise the integrity of the small parts of the Board.
5
Play music center in all possible modes (radio, tape, MP3 player) and check violations. If in all modes the sound is played with the same noise, so it is in the output path amplification. A breakdown in the power amplifier. To resolve it, replace the bad chip of the amplifier is operational.
6
After Troubleshooting again, inspect main Board. It may be poorly soldered places, swollen capacitors, darkened paths and other defects, which can soon make itself felt. Replace all suspect items. Thus, you will prevent another breakage of your music centre and extend the life of your hardware.

Advice 2: How to fix speakers

Each of us appreciates and loves his stereo system. And the most unpleasant when you go down one column. To change all the acoustics don't want to, but no one in the column effect is not the same. Well in this case you need to take a soldering iron, a screwdriver and start fixing them refuse to work part of the system.
How to fix speakers



Most often the problem lies in the heart of the column, in its dynamics. To fix column defect dynamics, we need to know what it is. Options may be several:



  • condensation on the membrane;

  • debris between the magnet and the coil;

  • the impulse wires to the diffuser;

  • demagnetization of the magnets;

  • the state of the membrane.


In each case, there is an option to "revive" column on their own. It is also worth remembering that a breach of the hull speakers may cause noise and extraneous sounds.



  1. Condensation on the membrane can be removed by heating it under an incandescent lamp. Remember to wipe the membrane can not, the slightest disturbance of its shape may result in the loss of sonic qualities.

  2. The disruption of the membrane, you can try to repair by replacement. To correct the form, worth a try if there's no other way, but do it very carefully.

  3. Dust dynamics, it is better to remove with a cotton swab and alcohol. Wind the wool on the tip of a long stick or post, soak it in alcohol and start cleaning.

  4. If you found detached from the diffuser wires, need to solder. After spaete everything in place, reinforce them with epoxy or glue. Duct tape is a strong option for dynamics.

  5. The worst option, if "led" magnet. In this case, repair the column only by replacing the magnet. To find a suitable magnet, can be harder than replacing the speaker as a whole.

  6. What was it column, the problem is complicated. It is better not to close the "gap" and to change the whole wall. For this you can use a plastic plate, a wooden Board, or metal. Not an easy task, the integrity column should be perfect, otherwise the sound will be lost. So after a new item is ready, pre-process locations of the new joints silicate glue or epoxy.




 

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