Galaxy DX Radios DX44V
Documentation Project

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     Owner's Manual

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      Frequency Conversion For (EPT004410Z Band PCB)
      Frequency Conversion For (EPT004410A "SMT" Band PCB)
      Channel Chart (After Modification)
      10 meter FM Mod (28.000 - 29.655MHz)
      Disabling Talkback
      Roger Beep Tone Mod

     PLL Alignment
     Transmitter Alignment
     Receiver Alignment
     Alignment Locations
     VCO Frequency Generation Chart Bands A-D and Bands E-H

     Transistor Voltage Chart
     Integrated Circuits Voltage Chart
     Active Device Location Diagram
     Semiconductor Datasheets

    DX44V Schematic Diagram (EPT360014B)
(April 19, 2002)
    DX44V Schematic Diagram (EPT360014C)
(Dec. 08, 2005)
    Band Board Schematic Diagram
    DX44V Inter-connection Diagram
    DX44V Inter-connection Diagram

PCB Layouts and Parts
    Main PCB Layout (EPT360014B or EPT360014C)
    Mic Jack PCB (EPT360050Z)
    Band Board Layout (EPT004410Z) (Used to the end of 2001)
    Band Board Layout SMT (EPT004410A) Current Production
    Channel Selector PCB Layout (EPT360022Z)
    Display PCB Layout (EPT360032Z)
    ECHO PCB Layout (EPT0SSB50F) (Used to the end of 2002)
    ECHO PCB Layout (EPT0SSB51J) Current Production

Chassis, Miscellaneous & Mechanical Parts
    Front View Chassis Parts
    Front View Chassis Parts
    Rear View Chassis Parts
    Rear View Chassis Parts
    Miscellaneous & Mechanical Parts

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 © 1998, 1999, 2000, 2001, 2002, 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.