5.1 Surround Sound Decoder

The circuit of 5.1 surround sound decoder (audio  5.1/ Dolby Prologic), this circuit serves to convert analog signals stereo or 2-channel, into 5.1 ch. By using the non-digital decoder method, so this circuit processes analog signals with the IC Op-Amp 4558, so that signals that were stereo can change to 5.1 or 6 channels, namely Left, Right, Center, Rear Left, Rear Right, and Subwoofer. This circuit works with a 12V symmetrical voltage (12VDC CT). The following PCB Layout (Electro India) and its component list,

5.1 Surround Sound Decoder single layer PCB:

Part List Surround sound decoder:

2 Capacitor 1000UF25V

3 Capacitor 100uF

20 Capacitor 4.7uF

2 Capacitor 0.015uf = 153

1 Capacitor 0.022uf = 223

4 Capacitor 0.033uf = 333

2 Capacitor 0.04uf = 403 or 0.047uf = 473

5 Capacitor 0.1uf = 104

3 Capacitor 0.22uf = 224

1 Connector - Screw Terminal 3 Pin (5mm pitch)

1 Connector 2 Pin (2.54mm)

5 Connector 3 Pin (2.54mm)

2 Connector 6 Pin (2.54mm) for BASS TREBLE

4 Diode 1N4007

4 IC 4558D

1 IC UA741

4 Jumper

3 Preset 100K

1 Preset 10K

2 Preset 20K or 22K

15 Resistors 1/4 Watt 10K

1 Resistors 1/4 Watt 1K

1 Resistors 1/4 Watt 1K5

2 Resistors 1/4 Watt 220 OHM

4 Resistors 1/4 Watt 22K

6 Resistors 1/4 Watt 2K2

3 Resistors 1/4 Watt 33K

2 Resistors 1/4 Watt 390K or 330K

8 Resistors 1/4 Watt 3K3

4 Resistors 1/4 Watt 470 OHM

1 Resistors 1/4 Watt 470K

7 Resistors 1/4 Watt 4K7

2 Resistors 1/4 Watt 6K8

4 Transistor BC548

2 Zener Diode 12VZ

1 Diode 1N4148

Build and test by ELECTRO INDIA:

Download:

PDF File 5.1 Surround Sound Decoder 

Gerber File 5.1 Surround Sound Decoder