|Wiring Circuit Diagram|
Reference Power Supply Circuit:
Dual Symmetriccal Power Supply Circuit
78 xx and 79 xx stabilzer power supply circuit
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First, Assemble stereo amplifier and tone control + subwoofer filter. After the circuit been finished. Then Assemble power supply circuit for supply the power amplifier , tone control and module mp3 player. A step-down transformer uses transformer 5A CT, with input 220v-240v AC primary and secondary output 20v AC CT. The output transformer voltage is rectified using a diode bridge 10Ampere and given 4700uF 35V capacitor using 6x.
For a supply voltage module mp3 player using stabilized 5V voltage input using IC 7805 + and - taken from the voltage to the power amps. and output the voltage to 5v. For IC 7805 do not forget to add a heatsink.
After the power supply circuit is already finished and the output voltage to Amplifier and tone control 20VDC asymmetric ready for use. Connect to a power amplifier and tone control. And a stabilized voltage 5V to the module mp3 for schemes input output audio signal.
The first one you connect that from the output module player / mp3 player output L / R input to L / R tone control. It then outputs the L / R tone control to input Power Amplifier. Done for the connection of the audio signal. Then, for output power amplifier connect with 8 inch speaker module to the player.