Galaxy DX Radios Galaxy DX Radios DX55HP

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)

MIC WIRING

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