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Icom IC-PW1 - Service Manual

Icom IC-PW1
71 pages
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HF/50 MHz ALL BAND
LINEAR AMPLIFIER
iC-PW1

Other manuals for Icom IC-PW1

Questions and Answers:

Icom IC-PW1 Specifications

General IconGeneral
Tuning MethodAutomatic
Input Impedance50 Ω
IMDLess than -30 dB
TypeHF Linear Amplifier
Frequency Range1.8-30 MHz
Power Output1000 W PEP
Input Power100 W
Power SupplyAC 100 V
ModeSSB, CW, AM, FM
CoolingForced Air Cooling

Summary

IC-PW1 Specifications

General Specifications

Covers frequency range, duty cycle, connectors, power, dimensions, and weight.

Linear Amplifier Specifications

Details output power, driving power, and spurious emissions.

Antenna Tuner Specifications

Specifies output matching range, tuning accuracy, input power, and insertion loss.

Circuit Description

Linear Amplifier Circuits

Explains exciter input, power splitter, amplifier, combiner, and filter circuits.

Antenna Tuner Circuits

Details matching, detector, and motor control circuits for the tuner.

Protection Circuits

Covers general protection, ALC, and driving power detection circuits.

Temperature Detector Circuit

Describes the heatsink temperature detection and control mechanism.

Driving Frequency Detector Circuit

Explains input power level detection for frequency band selection.

Power Supply Circuits

Lists various voltage lines and their descriptions within the unit.

Port Allocations

Details pin assignments for expander ICs and shift registers.

Adjustment Procedures

Preparation for Adjustment

Lists required test equipment and connection setup for adjustments.

PA and Front Unit Adjustment

Outlines procedures for adjusting idling current and meter maximum points.

Main Unit Adjustment

Details adjustments for SWR detector, tuner basis voltage, and power settings.

Semi-Conductor Information

Transistor and FET Information

Lists transistors and FETs with their symbols and inside views.

Diode Information

Lists diodes with their symbols and inside views.

Board Layouts

ANT-SW Unit Board Layout

Shows the layout and connections for the ANT-SW board.

C-NET Board Layout

Displays the layout and connections for the C-NET board.

L-NET Board Layout

Shows the layout and connections for the L-NET board.

H-NET Board Layout

Displays the layout and connections for the H-NET board.

Splitr Unit Board Layout

Shows the layout and connections for the SPLITR unit.

PA Unit Board Layout

Displays the layout and connections for the PA unit.

Main Unit Board Layout

Shows the layout and connections for the MAIN unit.

Block Diagram

Voltage and Wiring Diagrams

Overall Wiring Diagram

Overall wiring diagram connecting various units and signals.

Splitter, PA, and Combiner Units Diagrams

Detailed circuit diagram for splitter, PA, and combiner units.

Filter Unit Circuit Diagram

Circuit diagram for the filter unit, showing band-specific filters.

PA Unit Circuit Diagram

Circuit diagram detailing the power amplifier units.

Front Unit Circuit Diagram

Circuit diagram for the front unit, including controls and indicators.

Main Unit Circuit Diagram

Circuit diagram for the main unit, showing complex control and processing logic.

Tuner Unit Circuit Diagram

Circuit diagram for the tuner unit, including antenna switching and tuning control.

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