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Table of Contents
Table of Contents ................................................................................................................ 2
Table of Figures .................................................................................................................. 3
Section 1: About This Manual ............................................................................................ 4
Who Should Attempt this Project? ................................................................................. 4
Tools you’ll need ............................................................................................................ 4
Helpful Tools .................................................................................................................. 4
Project Overview ............................................................................................................ 4
Important Safety Notes ................................................................................................... 5
About Components ......................................................................................................... 5
Recommended Solder ..................................................................................................... 5
Warranty ......................................................................................................................... 5
Section 2: Kit Building Hints .............................................................................................. 6
Section 3: Building the Power Supply ................................................................................ 6
Component Order............................................................................................................ 7
Install the Resistors ......................................................................................................... 7
Install the diodes ............................................................................................................. 8
Install the optoisolator..................................................................................................... 9
Install the Transistors .................................................................................................... 10
Install the Small Non-polar Capacitors ......................................................................... 10
Install the Electrolytic (polarized) Capacitors .............................................................. 10
Fasten the Mounting Brackets to the PCB .................................................................... 10
Install the C9 Connection wires .................................................................................... 10
Install the RLYDRV wire ............................................................................................. 11
Check your work ........................................................................................................... 11
Disconnect the Old Power Supply and Power Amplifier ............................................. 11
SCA80Q .................................................................................................................... 12
SCA80 Directions ..................................................................................................... 13
Removing the Amplifier Modules, All Versions ...................................................... 13
Install the New Power Supply....................................................................................... 15
Test the New Power Supply .......................................................................................... 16
Section 4: Building the Stereo Amplifier Module ............................................................ 16
Install the diodes ........................................................................................................... 18
Install the Small Non-polar Capacitors ......................................................................... 19
Install the Electrolytic (polarized) Capacitors .............................................................. 19
Install the Transistors .................................................................................................... 20
Install the Relays ........................................................................................................... 20
Fasten the PCB to the Heatsink .................................................................................... 20
Install the LM3886 Power Amplifier ICs ..................................................................... 20
Build and Install the Inductor Resistor Combination ................................................... 21
Install the Red/Black Zipcord Power Wires ................................................................. 24
Install the Bonded Pair Capacitor Wires ....................................................................... 24
Install the auxiliary heatsink ......................................................................................... 24
Install the power amplifier ............................................................................................ 25
Test your work .............................................................................................................. 26
