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SPECIFICATIONS
     Owner's Manual

RADIO MODIFICATIONS
      DX77HML Frequency Conversion
      Channel Chart (After Modification)
      Extended 10-Meter Frequency Conversion (28.000 - 29.655MHz)
      Clarifier Mod
      Disabling Talkback
      Roger Beep Tone 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
     Semiconductor Datasheets

DIAGRAMS
    DX77HML Schematic Diagram (July 11, 2006)
    Active Device Location Diagram (Main Board)
    DX77HML Inter-connection Diagram
    DX77HML Inter-connection Diagram

PCB Layouts and Parts
    Main PCB (EPT360014B or EPT360014C)
    Mic Jack PCB (EPT360050Z)
    Channel Selector PCB (EPT360022Z)
    Display PCB (EPT360032Z)
    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

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