Table Of Contents; Table Of Figures - DYNACO PAT-4 Assembly Manual

Table of Contents

Table of Contents ................................................................................................................ 2
Table of Figures .................................................................................................................. 2
Section 1: About This Manual ............................................................................................ 3
Other PAT-4 Upgrades ................................................................................................... 3
Who Should Attempt these Projects? ............................................................................. 3
Tools You'll Need........................................................................................................... 4
Project Overview ............................................................................................................ 4
Section 2: Building the Power Supply PC Board ............................................................... 5
First, Get A Soup Bowl! ............................................................................................. 5
Install the Resistors ......................................................................................................... 5
Resistor Notes ............................................................................................................. 7
Install the Diodes ............................................................................................................ 8
Diode Notes ................................................................................................................ 8
Install the TO-92 Package Transistors ............................................................................ 8
Install the TO-92 Package Integrated Circuits ................................................................ 9
Install the TO-220 Power Transistors ............................................................................. 9
Install the Capacitors..................................................................................................... 10
Remove the Old Power Supply ................................................................................. 11
Install the New Power Supply....................................................................................... 13
Connect the New Power Supply ............................................................................... 13
Final Test and Assembly ............................................................................................... 14
Schematic .................................................................................................................. 15
Resistor Color Code ...................................................................................................... 16

Table of Figures

Figure 1-Component Locating Guide ................................................................................. 6
Figure 2-Front and Back views of Q6 mounted on heat sink ............................................. 9
Figure 3-Showing wires to cut and screws to remove ...................................................... 12
Figure 4-Mounting the power supply to the PAT-4.......................................................... 13
Figure 5-New Power Supply Installed in PAT-4 (this PAT-4 has tone control defeat
switch) ............................................................................................................................... 14
Figure 6-Schematic of PAT-4 Electronically Regulated Power Supply (Rev B) ............. 15
Figure 7-demonstrating the resistor color code ................................................................ 16
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