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Service Manual (Courtesy of KWP)

Diagrams
     Schematic Diagram
     Schematic Diagram

     Repair Flow Chart #1
     Repair Flow Chart #3

Mic Wiring

Stock
1- Audio
2- Shield
3- Receive
4- Transmit

Astatic (4 wire)
1- White
2- Shield
3- Black
4- Red

Astatic (6 wire)
1- White
2- Shield & Blue
3- Black
4- Red
Yellow NC

Daiwa EM-500
Cobra CA Series
1- Red
2- Shield & Black
3- Blue
4- White

Galaxy DC-521S (4 wire)
1- Yellow
2- Shield
3- Black
4- Red

Galaxy CB-660EI
1- White
2- Shield & Black
3- Blue
4- Red

Sadelta
1- White
2- Shield
3- Green
4- Brown

Turner
1- White
2- Shield & Red
3- Black
4- Blue
Yellow NC