User Manuals: Kenwood NX-3220 K Digital VHF Radio

User Manuals: Kenwood NX-3220 K Digital VHF Radio

Manuals and User Guides for Kenwood NX-3220 K Digital VHF Radio. We have 1 Kenwood NX-3220 K Digital VHF Radio manual available for free PDF download: Service Manual

Kenwood NX-3220 K Service Manual

Kenwood NX-3220 K Service Manual (204 pages)

VHF DIGITAL TRANSCEIVER, UHF DIGITAL TRANSCEIVER

Brand: Kenwood | Category: Transceiver | Size: 9.97 MB

Table of Contents

Table of Contents
1
Specification
3
System Set-Up
7
Precaution
7
Specific Service Instructions
7
- Realignment
  8
- Modes
  8
- How to Enter each Mode
  8
- PC Mode
  9
- Firmware Programming Mode
  9
- Programming
  9
- Function
  9
- Enter to the Front Panel Programming Mode
  10
- Front Panel Programming Mode
  10
- Clone Mode
  10
- Data Writing
  11
- Front Panel Programming Mode Flow Chart
  13
- Circuit Description
  14
- Transceiver Information Mode
  14
- Frequency Configuration
  14
- Receiver System
  15
- RF Circuit
  15
- Baseband Circuit
  15
- Audio Amplifier Circuit
  15
- APC Circuit
  16
- Transmitter System
  16
- Drive and Final Amplifier
  16
- PLL Frequency Synthesizer
  16
- Control Circuit
  17
- Vco
  17
- Pll
  17
- Memory Circuit
  17
- Power Supply Circuit
  18
- Lcd
  18
- Low Battery Warning
  18
- Dsp
  18
- Decode
  20
- Bluetooth/Gps Circuit
  20
- Encode
  20
- Signaling Circuit
  20
- Bluetooth Circuit
  21
- GPS Circuit
  21
- Components Description
  22
- SP/MIC Connector Specification
  25
- Precautions for Waterproof
  26
- Precautions for Disassembly
  26
- Removing the Selector Knob and Volume Knob
  26
Disassembly
26
Adjustment
31
Troubleshooting
149
- Descriptions of Signal Names
  150
- Failure Diagnosis of the GPS Section
  151
- Failure Diagnosis of the Bluetooth Section
  155
- Failure Diagnosis of the VCO Section
  158
- VCO Section Inspection
  160
- Operating Method of Enforced Firmware Overwriting Mode
  164
- Replacing TX-RX Unit
  165
- ESN Label Layout
  166
- Printed Circuit Boards
  168
- Address Table of Board Parts
  170
- Interconnection Diagram
  176
- Level Diagram
  177
- Block Diagram
  179
- Schematic Diagram
  182
- Parts List
  185
- Exploded View of General Assembly and Parts List
  186
- Packing Materials and Accessories Parts List
  203

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