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SPECIFICATIONS
    Owner's Manual

RADIO MODIFICATIONS
      DX55HP Frequency Conversion
      Channel Chart (After Modification)
      Extended 10-Meter Frequency Conversion (28.000 - 29.655MHz)
      Roger Beep Tone Mod
      Adding Talkback Mod

SEMICONDUCTOR INFORMATION
     Semiconductor Datasheets

DIAGRAMS
    DX55HP Schematic Diagram (EPT360015C) (May 23, 2008)
    Frequency Counter PCB Schematic Diagram (EPT210014D)

PCB Layouts and Parts
    Main PCB (EPT360015C)
    Mic Jack PCB (EPT360050Z)
    Dimmer PCB (EPT55V-51Z)
    Frequency Counter PCB (EPT210014D)
    Channel Selector PCB (EPT055V30Z)
    Display PCB (EPT055V20Z)
    PA Preamp PCB (EPT300110A)
    Slide Switch PCB (EPT055V40Z)
    VR PCB (EPT360111A)

Chassis, Miscellaneous & Mechanical Parts

    Miscellaneous & Mechanical Parts

Mic Wiring Diagram

Stock
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

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

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