TIPS:
You need to have Acrobat Reader version 5 or newer installed to view the files with icon.

If the files with or icon will not display see the Site FAQ for help on printing, viewing and using this information.

SPECIFICATIONS
    Owner's Manual

RADIO MODIFICATIONS
      DX33HML Frequency Conversion
      Channel Chart (After Modification)
      Extended 10-Meter Frequency Conversion (28.000 - 29.655MHz)
      Disabling Talkback
      10kc switch Mod

ALIGNMENT PROCEDURES
     PLL Alignment
     Transmitter Alignment
     Receiver Alignment
     Alignment Locations
     VCO Frequency Generation Chart Bands A-C and Bands D-F

SEMICONDUCTOR INFORMATION
     Transistor Voltage Chart
     Integrated Circuits Voltage Chart
     Semiconductor Datasheets

DIAGRAMS
    DX33HML Schematic Diagram (EPT3600-14B) (Jul. 11, 2006)
    DX33HML Schematic Diagram (EPT3600-14C) (Dec. 08, 2005)
    Active Device Location Diagram
    DX33HML Inter-connection Diagram
    DX33HML Inter-connection Diagram

PCB Layouts and Parts
    Main PCB Layout (EPT360014B or EPT360014C)
    Mic Jack PCB (EPT360050Z)
    Channel Selector PCB (EPT360022Z)
    Display PCB (EPT360032Z)
    Echo PCB Layout (EPT0SSB50B) (Early Version)
    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

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