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Dual Input Card
Motherboard
Dual Output Card
Power Supply
Processing Card
Control Systems
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Photos and Downloads

 

(PC Users - right click to save as a file)

Design Example

Block Schematic Of 16 Stereo Inputs, Design Example (280KB)

 

Dual Stereo Input Card

High Resolution Photos:

PCB with components (593KB)

PCB - Side View with components (89KB)

PCB - Side View with components (100KB)

PCB - Top View (505KB)

PCB - Rear View (347KB)

Block Schematic Diagram (178KB)

Circuit Diagram 1 (156KB)

Circuit Diagram 2 - Voltage Regulators (120KB)

Multipin Connector (Motherboard) - Pin Assignments (Microsoft Word 95 file 17KB)

Parts List (Microsoft Excel 95 file 44KB)

 

Motherboard

High Resolution Photos:

PCB in subrack (102KB)

PCB - 3D view (138KB)

PCB - Top View (84KB)

PCB - Rear View (67KB)

Block Schematic Diagram (181KB)

Motherboard - 40 Pin Data Connector - Pin Assignments (Microsoft Word 95 49KB)

Parts List (Microsoft Excel 95 file 28KB)

 

Dual Stereo Output Card (Provisional)

High Resolution Photos: None yet.

Block Schematic Diagram (130KB)

Multipin Connector (Motherboard) - Pin Assignments (Microsoft Word 95 33KB)

 

Power Supply

Unregulated Supply - Generic Circuit Diagram (71KB)

 

Control Systems

Rotary Encoder Pin Connections and Waveforms (190KB)

PIC12CE519 and PGA2310 Volume Control - Circuit Diagram (140KB)

PIC12CE519 Volume Control Assembly Code (55KB)

 
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David R Errock