Galaxy DX Radios DX66V
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 Bands A-D and Bands E-H

     Transistor Voltage Chart
     Integrated Circuits Voltage Chart
     Semiconductor Datasheets

    DX66V Schematic Diagram (EPT360014B) (April 19, 2002)
    DX66V Schematic Diagram (EPT360014C)
(Dec. 06, 2005)
    Active Device Location Diagram (Main Board)

    Band Board Schematic Diagram (EPT004410Z)
    Frequency Counter PCB Schematic Diagram (EPT210014C)
    Frequency Counter PCB Schematic Diagram (EPT210014D)
    Dimmer PCB Schematic Diagram (EPT55V-51Z)
    DX66V Inter-connection Diagram
    DX66V Inter-connection Diagram

PCB Layouts and Parts
    Main PCB (EPT360014B or EPT360014C)
    Channel Selector PCB (EPT055V30Z)
    Display PCB (EPT055V20Z)
    Frequency Counter PCB (EPT210014C)
    Frequency Counter PCB (EPT210014D) (Started with later 2005 Production)
    Mic Jack PCB (EPT360050Z)
    Dimmer PCB (EPT55V-51Z)
    Band Board Layout (EPT004410Z)
    Band Board Layout SMT (EPT004410A) Later Production
    Mode Switch PCB (EPT066V40Z)
    ECHO PCB (EPT0SSB50B) (Early Version)
    ECHO PCB (EPT0SSB50F) (Used to the end of 2002)
    ECHO PCB (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.