Icom IC-701PS AC Power Supply Instruction Manual

Introduction

Thank you for choosing the Icom IC-701PS. This unit is an AC Power Supply designed for the IC-701, ICOM's Digital All Solid State HF Transceiver.

Specifications

Number of Semiconductors	Not specified
Input Voltage (suitable voltage)	117 / 230 V AC (50 / 60 Hz)
Allowable voltage fluctuation	±10% of input voltage (suitable line voltage)
Input Capacity	360VA (at 20A load)
Output Voltage	DC13.8V (at 20A load)
Max. Load Current	20A (10 minutes ON/10 minutes OFF, 50% duty cycle)
Ground	Negative ground
Speaker Dimensions	125 x 77 mm
Speaker Input Power	2 watt nominal input, 4 watt maximum
Dimensions (H x W x D)	110 (H) x 180 (W) x 260 (D) mm
Weight	Approximately 8 kg
Included Accessories	AC power cord (1), Spare fuse (2), Speaker cord (1)

Before Use

This unit is an AC power supply for the IC-701 and is designed to be turned ON and OFF with the power switch on the IC-701. This unit does not have a separate power switch.

Due to its 20A maximum capacity at 13.8 V DC, it is recommended that this unit not be used with equipment other than the IC-701, even for experimental purposes.

How to Use

Connect the DC output plug of this unit to the IC-701 power connector securely. Ensure that:
- the power switch on the IC-701 is OFF,
- the T/R switch is at the RECEIVE position, and
- no microphone is connected.
Connect the AC power cord to the AC power connector on the rear panel of the IC-701PS.
Plug the AC power cord into the power outlet. The remote control relay in this unit will be in the standby position.
Turn the IC-701 power switch ON. This unit will power ON, and the power display LED will illuminate.

For further operating information, refer to the instruction manual for the IC-701.

Component Descriptions

Power Display LED: Illuminates when power is ON. Power ON/OFF is controlled by the IC-701's power switch.
Speaker: A built-in 125 x 77 mm oval speaker is provided. It serves as the external speaker for the IC-701. The impedance is 8 ohms and the input power is 2 watts. This speaker is designed for communication purposes and is not suitable for Hi-Fi use.
SPK INPUT Jack: Connects to the EXT SPK jack of the IC-701 using the included speaker cord.
Fan Power Jack: Provides 12 V, approximately 100 mA for a cooling fan. While not necessary for normal operation, an optional cooling fan is recommended for continuous transmission, such as for RTTY.
DC Output Plug: Provides DC13.8V up to 20A. Connect this plug to the power connector of the IC-701.
Main Switch: The power ON/OFF of this unit is remote-controlled by the IC-701's power switch. The relay for this remote control is continuously connected to the AC power line and consumes 2VA. It is recommended to turn the Main Switch OFF when the unit is not used for a long time, as this prevents the unit from being powered on by the IC-701's power switch.
Fuse Holder: Located on the AC power line. If the fuse blows, replace it with a 5 A fuse (for 117 V) or a 3 A fuse (for 230 V) after investigating the cause. Use a Phillips (+) screwdriver to open the holder. The outside ring of the holder does not rotate.
AC Power Connector: Connect the included AC power cord here.
GND Terminal: Ground this terminal with the shortest possible wire to protect against electric shock.

How to Use the Internal Speaker

Use the included speaker cord to connect the SPK INPUT jack on the rear panel of the IC-701PS to the EXT SPK jack on the rear panel of the IC-701. The internal speaker has an impedance of 8 ohms and a nominal input power of 2 watts, making it compatible with any transceiver having these specifications.

Schematic Diagram

The schematic diagram illustrates the internal components and connections of the IC-701PS AC Power Supply. Key components include the main transformer (T1), various diodes (D1, D3), capacitors (C8), resistors (R1, R2, R3), fuses (F1, F2), relays (RL1), speaker (SP1), and various input/output jacks (P1, P2, P3, J1, J2). The diagram shows the AC input connections for 234V and 117V, the DC output for the fan and the main DC output, and the speaker connections.

Key connections and components in the schematic:

AC Input: Connections for 234V and 117V AC input are shown, with fuses (F1, F2) and a main switch (S1) controlling the power flow.
Transformer (T1): Steps down the AC input voltage.
Rectification and Filtering: Diodes (D1, SR-20N2R, SR-20N2R) and capacitors (C8, 47000uF) are used for rectifying and filtering the AC to DC voltage.
DC Output: Provides DC 13.8V at 20A via connector P1.
Fan Output: Provides DC 12V at 100mA via connector J3.
Speaker Output: Connects to the internal speaker (SP1) and provides an external speaker input jack (J2) with 8-ohm impedance.
Relay (RL1): Used for remote control of the power supply, activated by the IC-701.

Manufacturer Information

INOUE COMMUNICATION EQUIPMENT CORPORATION
1-6-19, KAMIKURATSUKURI HIRANO-KU,
OSAKA JAPAN

	ICOM IC-PS15 AC Power Supply Instruction Manual Comprehensive instruction manual for the ICOM IC-PS15 AC Power Supply, detailing specifications, usage, functions, and internal circuitry for radio transceivers.
	ICOM IC-290A/E Transceiver Schematic Diagrams and Technical Reference Detailed schematic diagrams and board layouts for the ICOM IC-290A/E VHF/UHF transceiver, providing a technical overview of its internal circuitry and components.
	Icom IC-7800 Instruction Manual: Your Guide to Advanced Amateur Radio Discover the features and operation of the Icom IC-7800 amateur HF/50 MHz transceiver with this comprehensive instruction manual. Learn about installation, panel descriptions, basic and advanced operations, and maintenance from Icom.
	ICOM PS-126 DC Power Supply: Instructions and Specifications Comprehensive instructions and specifications for the ICOM PS-126 DC Power Supply, detailing operation, safety precautions, technical details, and panel layout for use with HF/VHF/UHF transceivers.
	Icom IC-736 & IC-738 Instruction Manual Comprehensive instruction manual for the Icom IC-736 and IC-738 HF/50 MHz transceivers, covering panel descriptions, installation, operation, maintenance, and troubleshooting.
	ICOM IC-728 & IC-729 HF Transceiver Instruction Manual Comprehensive instruction manual for the ICOM IC-728 and IC-729 HF and 50 MHz transceivers, covering panel descriptions, installation, operation, maintenance, and specifications.
	ICOM IC-245E Block Diagram and Circuit Schematics Detailed block diagram and circuit schematics for the ICOM IC-245E radio transceiver, illustrating its internal logic and electronic components.
	Icom IC-7200 HF/50 MHz Transceiver Instruction Manual Comprehensive instruction manual for the Icom IC-7200 HF/50 MHz Transceiver, covering installation, operation, features, and maintenance.