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DYNACO PWRAMP80 Manuals
Manuals and User Guides for DYNACO PWRAMP80. We have
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DYNACO PWRAMP80 manual available for free PDF download: Assembly Manual
DYNACO PWRAMP80 Assembly Manual (36 pages)
Amplifier and Power Supply Upgrade
Brand:
DYNACO
| Category:
Amplifier
| Size: 4.14 MB
Table of Contents
Table of Contents
2
Table of Figures
3
Section 1: about this Manual
4
Helpful Tools
4
Project Overview
4
Tools You'll Need
4
Who Should Attempt this Project
4
About Components
5
Important Safety Notes
5
Recommended Solder
5
Warranty
5
Figure 1-Empty the Power Supply Components into a Soup Bowl
6
Component Order
7
Figure 2-Silk Screen Shows Power Supply Component Locations
7
Install the Resistors
7
Install the Diodes
8
Figure 3-Pin 1 of the Opto-Isolator Is Indicated by the Dot and the Ridge in the Package
9
Figure 4-Although more Subtle, Notice that the Q4 Has a Square Side and a Round Side
9
Install the Optoisolator
9
Fasten the Mounting Brackets to the PCB
10
Figure 5-Installing the Mounting Brackets on the Power Supply PCB
10
Install the C9 Connection Wires
10
Install the Electrolytic (Polarized) Capacitors
10
Install the Small Non-Polar Capacitors
10
Install the Transistors
10
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 RLYDRV Wire
11
Install the New Power Supply
15
Test the New Power Supply
16
Section 2: Kit Building Hints
6
Section 3: Building the Power Supply
6
Figure 6-Grounding Arrangement for Speaker Common Connections on the SCA-80
16
Section 4: Building the Stereo Amplifier Module
16
Figure 7-Component Locations for the Stereo Amplifier Module
17
Install the Diodes
18
Figure 8-Anode Is the Longer of the Two Leads
19
Install the Electrolytic (Polarized) Capacitors
19
Install the Small Non-Polar Capacitors
19
Fasten the PCB to the Heatsink
20
Figure 9-Assembling the PCB to the Heatsink
20
Install the LM3886 Power Amplifier Ics
20
Install the Relays
20
Install the Transistors
20
Build and Install the Inductor Resistor Combination
21
Figure 10-Assembled Amplifier on Main Heatsink
21
Install the Auxiliary Heatsink
24
Install the Bonded Pair Capacitor Wires
24
Install the Red/Black Zipcord Power Wires
24
Figure 11-Assembled PCB with both Heatsinks Attached
25
Install the Power Amplifier
25
Test Your Work
26
Bare Amplifier Tests
26
Amplifier Plus Speaker Tests
26
Amplifier Plus Speaker Plus Source Tests
27
Final Assembly
27
In Case of Trouble
27
About the Design
28
Power Supply Theory of Operation
28
Figure 12-Power Supply Snippet
29
Figure 13-DC Good Detector Snippet
30
Figure 14-AC Detect Snippet
31
Amplifier Board Theory of Operation
32
Figure 15-Power Supply Schematic
34
Figure 16-Page 1 of Amplifier Board Schematic
35
Figure 17-Page 2 of Amplifier Board Schematic
36
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