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.
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.
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.
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.
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.
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 connect the player to the music center
Sometimes music center no MP3 function, and pocket player it is. But the player, unlike the music center, unable to sound loud. To correct this deficiency, you must connect the player and the center between them.
First, check music center on the presence on the front panel input jacks RCA-type jacks marked AUX or PHONO. Do not confuse them with jacks for headphones or microphones - they are not only made according to another standard, but is intended for another.
If you have not found such nests, being careful not to tear any cables expand the musical center of the rear wall to itself. There are sockets you'll likely find. Do not confuse them with sockets for other purposes, which can also be performed by standard RCA.
Now take the junk headphones. Cut them the sounders. Purchase two RCA-type plug. Strip the wires that went to the alarm. One of the pairs consists of the colorless (or yellow) and red (or orange) conductors, and the other is red or orange wire is a blue or green. All colorless or yellow wires connect to the ring contacts of the plugs, and the red (orange), and blue (green) - to the male.
Connect the cable to the player and music centre. At the last select mode called AUX or PHONO. If inputs from him, they may have a designation AUX1, AUX2 and the like. In search of the entrance, install both on the playerand in the centre of the small volume. In the future, install on player this volume, the pre-amplifier centre is not overrun, then the adjustment of the exercise from the center.
To the battery of the player is not discharged, connect the device to a special power supply that emulates a USB port. You can also use USB hub with power supply, which is connected to the unit and to the computer - no. Note that if the player is not powered from the battery and from the battery, charging the latter in any way is not allowed. Using the music center with the player does not exclude the possibility of switching them if necessary, and in other modes.