Galaxy DX Radios DX979 (MOSFET Final)
Documentation Project

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      Owner's Manual

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      Frequency Conversion
      Channel Chart (After Modification)
      Clarifier Mod

      Semiconductor Datasheets

    Schematic Diagram (EPT092912Z) (March 31, 2008)

PCB Layouts and Parts
    Main PCB Layout (EPT092913Z)
    Channel Selector PCB (EPT092920Z)
    Display / Switch PCB (EPT092930Z)
    VR PCB ( VOL-SQ-OFF, MIC / RF Gain, DIM / PWR) (EPT092940Z)
    VR PCB (Clarifier / Talk Back) (EPT092950Z)
    Dimmer / EL PCB (EPT092961Z)
    Modular VCO PCB (EPF000210Z)
    SWR PCB (EPT360042Z)

Chassis, Miscellaneous & Mechanical Parts
    Miscellaneous & Mechanical Parts
    Chassis Exploded View Drawing

Mic Wiring Diagram

1- Shield  (Ground)
2- Yellow  (Audio)
3- Red      (Transmit)
4- White   (Receive)

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

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

Daiwa EM-500
Cobra CA Series

1- Shield & Black
2- Red
3- White
4- Blue

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

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

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

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

Copyright © 2003

Disclaimer: Although the greatest care has been taken while compiling these documents,

we cannot guarantee that the instructions will work on every radio presented.