Yaesu FTDX3000 User Manual

Specications
Exploded View & Miscellaneous Parts
Block Diagram
Connection Diagram
Alignment
Board Unit (Schematics, Layouts & Parts)
MAIN Unit
BPF Unit
SCP Unit
CNTL Unit
LOCAL Unit
PA Unit
TUNER Unit
DSP Unit
FFT Unit
DISPLAY-1 Unit
DISPLAY-2 Unit
SW-A Unit
SW-B Unit
VR-A Unit
JACK Unit
MIC Unit
HF/50 MHz T
ransceiver
FT
DX
3000
T
echnical
S
upplement
©2013 YAESU MUSEN CO., LTD.
EH046H90A
YAESU MUSEN CO., LTD.
Tennozu Parkside Building
2-5-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 Japan
YAESU USA
6125 Phyllis Drive, Cypress, CA 90630, U.S.A.
YAESU UK
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
YAESU HK
Unit 2002, 20/F, 9 Chong Yip Street,
Kwun Tong, Kowloon, Hong Kong
Introduction
This manual provides technical information necessary
for servicing the FT
DX
3000 HF/50 MHz Transceiver.
Servicing this equipment requires expertise in handling
surface-mount chip components. Attempts by non-
qualified persons to service this equipment may result
in permanent damage not covered by the warranty, and
may be illegal in some countries.
Two PCB layout diagrams are provided for each double-
sided circuit board in the Transceiver. Each side of is
referred to by the type of the majority of components
installed on that side ("leaded" or "chip-only"). In
most cases one side has only chip components, and
the other has either a mixture of both chip and leaded
components (trimmers, coils, electrolytic capacitors, ICs,
etc.), or leaded components only.
While we believe the technical information in this
manual to be correct, YAESU MUSEN assumes no
liability for damage that may occur as a result of
typographical or other errors that may be present. Your
cooperation in pointing out any inconsistencies in the
technical information would be appreciated.
Contents
Important Note
1) This transceiver was assembled using Pb (lead)
free solder, based on the RoHS specication.
Only lead-free solder (Alloy Composition: Sn-
3.0Ag-0.5Cu) should be used for repairs per-
formed on this apparatus. The solder stated
above utilizes the alloy composition required
for compliance with the lead-free specication,
and any solder with the above alloy composi-
tion may be used.
2) Risk of explosion if baery is replaced by an
incorrect type. Dispose of used batteries ac-
cording to the instructions.

Yaesu FTDX3000 Specifications

General

Antenna Impedance	50 Ohms
Type	HF/50 MHz Transceiver
Supply Voltage	13.8 V DC ±15%
Antenna Connector	SO-239
IF DSP	Yes
Modes	AM, FM, RTTY
Receiver Type	Triple Conversion Superheterodyne
Display	4.3-inch TFT Full-Color

Summary

Introduction

Exploded View & Miscellaneous Parts

Exploded View-1

Shows the external parts and their assembly.

Exploded View-2

Illustrates front panel and display assembly components.

Exploded View-3

Details chassis and shield plate components.

Exploded View-4

Depicts internal main chassis and unit placements.

Exploded View-5

Shows internal component layout and shielding.

Exploded View-6

Illustrates internal board unit assembly.

Specifications

General

Lists general operating parameters and physical characteristics.

Transmitter

Details transmitter output power and modulation types.

Receiver

Covers receiver circuit type and sensitivity specifications.

Block Diagram

Block Diagram-1

Provides a high-level system overview with functional blocks.

Connection Diagram

Connection Diagram-1

Illustrates internal signal and power connections between units.

Alignment

Introduction and Precautions

Covers essential safety and preparatory steps before alignment.

Required Test Equipment

Lists necessary tools and instruments for alignment procedures.

Alignment Preparation & Precautions

Details critical setup and environmental considerations for accurate alignment.

VDD Meter Adjustment

Describes voltage adjustments on the PA Unit for proper operation.

TEMP/FAN Adjustment

Details calibration for temperature compensation and fan control.

SHIFT/WIDTH Knob Zero (Center) Adjustment

Covers alignment of IF shift and bandwidth controls.

COMP Meter Adjustment

Describes adjustments for the compressor meter readings.

2nd/3rd Local Oscillator Adjustment

Details alignment of local oscillator circuits for frequency accuracy.

VCO Adjustment

Covers voltage adjustments for Voltage Controlled Oscillators.

REF OSC Adjustment

Describes alignment of the reference oscillator frequency.

Main Receiver Adjustment

Details adjustments for the 1st local oscillator across frequency bands.

2nd Local Level Adjustment

Covers adjustments for the 2nd local oscillator level.

IF Transformer Adjustment

Details alignment of IF transformers for optimal signal processing.

MCF Adjustment (1)

Describes adjustments for the 14.200 MHz MCF circuit.

MCF Adjustment (2)

Covers MCF adjustments for 14.200 MHz with different filters.

IF Trap Adjustment

Details alignment of IF traps to minimize unwanted signals.

Noise Blanker Circuit Adjustment

Covers alignment of the noise blanker circuit.

RF AGC Adjustment

Details adjustments for the Automatic Gain Control circuit.

IF Gain Adjustment

Covers alignment of IF gain stages across frequency bands.

S-meter Adjustment

Describes calibration of the S-meter readings.

FM Gain Adjustment

Covers gain adjustments for FM mode operation.

Transmitter Adjustment

Details transmitter adjustments including TX IFT.

TX IFT Adjustment

Covers alignment of the Transmit Intermediate Frequency Transformer.

PA Unit Adjustment

Details adjustments for the Power Amplifier unit.

Pre-Drive Stage Idling Current Adjustment

Describes idling current adjustments for the pre-drive stage.

Drive Stage Idling Current Adjustment

Covers idling current adjustments for the drive stage.

Final Stage Idling Current Adjustment

Details idling current adjustments for the final power stage.

Antenna Tuner Adjustment

Covers balance adjustment for the antenna tuner coupler.

Current ALC Adjustment

Describes automatic level control adjustments across amateur bands.

ALC Meter Adjustment

Details alignment of the ALC meter for proper power control.

REV-ALC Adjustment

Covers reverse ALC adjustments for different frequency bands.

FM MAX Deviation Adjustment

Details alignment of FM deviation for transmitter output.

SWR Meter Adjustment

Describes calibration of the Standing Wave Ratio meter.

IDD Meter Adjustment

Covers adjustments for the Internal DC Deviation meter.

Board Unit Schematics, Layouts & Parts

MAIN Unit (Circuit Diagram)

Shows the schematic for the main unit's circuitry.

BPF Unit (Circuit Diagram)

Provides the schematic for the Band Pass Filter unit.

SCP Unit (Circuit Diagram)

Shows the schematic for the SCP unit.

CNTL Unit (Circuit Diagram)

Provides the schematic for the control unit.

LOCAL Unit (Circuit Diagram)

Shows the schematic for the local oscillator unit.

PA Unit (Circuit Diagram)

Provides the schematic for the power amplifier unit.

DSP Unit (Circuit Diagram)

Shows the schematic for the digital signal processing unit.

FFT Unit (Circuit Diagram)

Provides the schematic for the FFT unit.

DISPLAY-1 Unit (Circuit Diagram)

Shows the schematic for the first display unit.

DISPLAY-2 Unit (Circuit Diagram)

Provides the schematic for the second display unit.

SW-A Unit (Circuit Diagram)

Shows the schematic for the SW-A unit.

SW-B Unit (Circuit Diagram)

Provides the schematic for the SW-B unit.

VR-A Unit (Circuit Diagram)

Shows the schematic for the VR-A unit.

JACK Unit (Circuit Diagram)

Provides the schematic for the jack unit.

MIC Unit (Circuit Diagram)

Shows the schematic for the microphone unit.

MAIN Unit Parts List

Lists all components for the main unit with reference numbers.