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Table of Contents
Table of Contents ................................................................................................................ 2
Table of Figures .................................................................................................................. 3
Section 1: About This Manual ............................................................................................ 5
Who Should Attempt this Project? ................................................................................. 5
Tools You’ll Need........................................................................................................... 5
Project Overview ............................................................................................................ 5
Important Safety Notes ................................................................................................... 6
About Components ......................................................................................................... 6
Recommended Solder ..................................................................................................... 6
Warranty ......................................................................................................................... 6
Section 2: Building the Power Supply PCB ....................................................................... 7
Component Order............................................................................................................ 7
Install the Resistors ......................................................................................................... 7
Install the Diodes ............................................................................................................ 9
Identifying the glass body diodes ............................................................................... 9
Install the Last Resistor ................................................................................................. 11
Install the Small Capacitors .......................................................................................... 11
Install the Integrated Circuits ........................................................................................ 12
Install the Transistors .................................................................................................... 12
Install the Big Capacitors .............................................................................................. 12
Final Inspection of the Circuit Board............................................................................ 13
Power Supply Final Assembly ...................................................................................... 13
Section 3: Assembling the Amplifier Circuit Boards ....................................................... 16
Install the Resistors ....................................................................................................... 17
Install the Small Capacitors and the Diodes ................................................................. 19
Last Capacitors and the Transistors .............................................................................. 20
Winding the Output Inductor ........................................................................................ 22
Install Relay K1 ............................................................................................................ 23
Final Inspection of the Circuit Board............................................................................ 23
Install the LM3866 and Mount the Amplifier Board to the Heatsink........................... 24
Section 4: Wiring it All Together ..................................................................................... 26
Attach the Power Supply Ground Wire ........................................................................ 26
Attach the Amplifier Module Wires ............................................................................. 26
Attaching LEFT Module Wires ................................................................................ 26
Attaching RIGHT Module Wires.............................................................................. 27
Build the Ground Harnesses ......................................................................................... 28
Build the Ground Lifter ................................................................................................ 29
Install the Feet ............................................................................................................... 30
AC Power Wiring ......................................................................................................... 30
Installing Amplifier Modules into the Chassis ......................................................... 32
Install the Speaker Binding Posts ................................................................................. 33
Connect the Speaker Binding Posts .............................................................................. 34
Transformer Preparation ........................................................................................... 35
Transformer Installation............................................................................................ 37