DIY music center

From the only part that needs to be purchased, using old equipment, it is possible to make a functional music center. The most important thing is to connect the disparate elements correctly, and also to protect the equipment from improper use.

Materials and tools

To assemble a music center you will need:

1. Cassette recorder.
2. Working column.
3. Power cord.
4. Shielded wire with 3.5 connector.
5. Power unit.

Tools:

1. Screwdriver.
2. Drill.
3. Glue.
4. Bulgarian.

Music center diagram

The power supply voltage from the computer is excellent for assembly, +5/12 Volts. A microcircuit is connected to +5, and from +12 the battery is charged (must be purchased). In the absence of electricity, the audio system can operate autonomously.

The LM 7805 chip converts the current into the required format. Capacitors are installed for harmonic filtering. Electrolytic capacitors with a breakdown voltage of 30 V, others - 55 V. The most important thing is to correctly observe the polarity of the elements. It is also not recommended to connect the microcircuit at high voltage, as it will overheat.

Reference! It is best to make separate power switches for the low-frequency amplifier, connect the jack to the amplifier stage. This is how you can use an amplifier box from an electric guitar. It is not prohibited to equip the system with an aux connector at the same time.

Do not forget that the low-frequency amplifier becomes very hot during operation. The microcircuit must be located on a large aluminum radiator. By the same token, the required element can be used from an old music center: you need to find the most loaded key.

Wires go out from it to the speakers. The tracks on the chip can be traced with the naked eye. Now we need to determine what voltage was used in the old device in order to assemble it into a common design:

1. Most likely, the factory equipment was designed taking into account generally accepted rules.
2. When there is overvoltage, this can be heard through the sound distortions formed by the meander. Any piece of music performed in this way is similar to trash rock, this can be easily determined by ear.
3. The element base of modern devices can support almost all signal ranges.

DIY music center: step by step

Microcircuits make it possible to play many formats, including from a flash card. The cost of most microcircuits is in the range of 1500-2500 rubles. and comes with a remote control.

Attention! Amplifier chips can be purchased at the store; it is possible to separately set equalizers and other elements of the speaker system at the same time as adjustment knobs. This makes it possible to assemble acoustic conglomerates according to your needs.

The MP 2896 embedded microsystem is being discussed today. There are many others on the market. The advantage is a large assortment. The old audio system needs to be used wisely. Today there is no need for cassette recorders; the 2 decks below are removed simultaneously with the amplifier heads and other unnecessary elements.There should be a radio with a CD player inside. By the way, the latter can be replaced with a DVD player.

Instead of decks, you need to install several broadband speakers, so you get a kind of boombox. The advantage is an attractive appearance and ease of adjustment. The design already contains a power supply. Old music equipment did not have USB connectors, so you need to install a card reader. Main characteristics of MP 2896:

1. Power supply variance ±0.30 V.
2. Power supply +5 Volts.
3. Connectors MU2F, MU3F.
4. AUX, USB input ports.
5. Board type MW2M.
6. 4 equalizer adjustments.

There is a remote control included. That is, you get a system with a voltage of 5 Volts, reading flash drives, receiving radio, passing sound through an equalizer. You just need to add a low-frequency amplifier and speakers to assemble a functional music center.