The Icom SCHEMATICS manual provides instructions for setting up and operating the IC-701PS AC Power Supply, which is specifically designed to power the IC-701 HF Transceiver. It includes details on connecting the power supply, using the internal speaker, and troubleshooting issues such as replacing fuses and ensuring proper grounding.
Manual Overview
The Icom IC-701PS is an AC power supply specifically designed for the IC-701 HF transceiver. It operates with an input voltage of 117/230V AC and provides a DC output of 13.8V at a maximum load current of 20A. The unit is controlled remotely by the power switch of the IC-701, as it lacks a separate power switch. Troubleshooting involves checking the fuse holder if power issues arise; replace the fuse with a 5A (at 117V) or 3A (at 230V) after identifying the cause. The internal speaker, with an impedance of 8 ohms and a nominal input power of 2 watts, can be connected using the included speaker cord. For continuous transmission, a cooling fan is recommended, although not necessary for normal operation. Calibration and adjustments are not detailed, but the schematic diagram provides board-level guidance for technical evaluation and repair. The unit’s design emphasizes safe operation and compatibility with the IC-701, discouraging use with other devices.
Quick Issues Covered
- Diagnose power-up failures via IC-701 power switch control.
- Check fuse holder for blown fuses; replace with correct rating.
- Trace circuit using IC-701PS schematic for troubleshooting.
Overview
The IC-701PS is an AC power supply designed specifically for the IC-701, ICOM’s Digital All Solid State HF Transceiver. It provides a DC output of 13.8V at a maximum load current of 20A and is intended to be operated using the power switch of the IC-701, as it does not have its own power switch. The unit includes an internal speaker and various connection jacks, such as a speaker input jack and a fan power jack. The manual provides instructions on how to connect and use the power supply with the IC-701, emphasizing that it should not be used with other devices.
Specifications
- Number of Semi-conductors: Silicon diode 3, LED 1
- Input Voltage (suitable voltage): 117/230V AC (50/60 Hz)
- Allowable voltage fluctuation: ±10% of input voltage (suitable fine 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)
- Dimensions: 110 (H) x 180 (W) x 260 (D) mm
- Weight: Approximately 8 kg
- Accessories included: AC power cord 1, Spare fuse 2, Speaker cord 1
- Polarization: Negative ground
- Internal Speaker: 125 x 77 mm, 2 watt nominal input, 4 watt maximum
- Speaker Impedance: 8 ohms
Controls & Indicators
The front-panel controls/indicators for the IC-701PS include a Power Display LED, which illuminates when the power is ON. The power ON/OFF is controlled by the power switch of the IC-701, as the unit does not have a separate power switch.
Installation / Setup
The installation and setup of the IC-701PS AC power supply involve connecting the DC output plug securely to the IC-701 power connector, ensuring that the power switch on the IC-701 is off, the T/R switch is at the receive position, and no microphone is connected. The AC power cord should be connected to the AC power connector on the rear panel of the IC-701PS and plugged into a power outlet. The power supply is designed to be turned on and off with the power switch on the IC-701, as it does not have a separate power switch. It is recommended not to use the unit with devices other than the IC-701. For continuous transmission, such as RTTY, an optional cooling fan is recommended, although not necessary for normal operation. The internal speaker can be used by connecting the SPK INPUT jack on the IC-701PS to the EXT SPK jack on the IC-701 using the included speaker cord. The speaker has an impedance of 8 ohms and a nominal input power of 2 watts. Grounding the GND terminal with a short wire is advised to protect from shock.
Operation
The IC-701PS is an AC power supply designed for use with the IC-701 transceiver. It does not have a separate power switch and is turned on and off using the power switch of the IC-701. To use it, connect the DC output plug to the IC-701 power connector, ensuring the IC-701 power switch is off, the T/R switch is in the RECEIVE position, and no microphone is connected. Then, connect the AC power cord to the IC-701PS and plug it into a power outlet. The power display LED will illuminate when the IC-701 power switch is turned on. The unit includes an internal speaker for use with the IC-701, and a fan power jack is available for optional cooling during continuous transmission. The main switch should be turned off when the unit is not in use for a long time to prevent unnecessary power consumption.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Refer to the PDF for details.
Download SCHEMATICS Manual (PDF – 1.9 MB)
Icom IC-701PS Schematics Manual: Provides detailed circuit diagrams for troubleshooting and repair. File size: 1.9 MB.
- Brand: Icom-ic-701ps-manual
- Model: SCHEMATICS
- Type: Manual
- File size: 1.9 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download SCHEMATICS manual (PDF)
Icom IC-701PS SCHEMATICS – Overview
The Icom IC-701PS is a high-performance amateur radio transceiver designed for reliable communication across various HF bands. Renowned for its robust build and precise frequency control, this device caters to both hobbyists and professional radio operators seeking clear transmission and reception capabilities. The included schematics manual provides detailed circuit diagrams essential for repair, maintenance, and technical understanding of the transceiver’s internal workings.
Main Features and Specifications
- Frequency Coverage: 1.8 MHz to 30 MHz (HF bands)
- Output Power: Up to 100 Watts (SSB, CW, AM)
- Modes Supported: SSB, CW, AM, and FM
- Digital Frequency Synthesizer for stable tuning
- Built-in Automatic Gain Control (AGC)
- Multiple Band Pass Filters for enhanced selectivity
- Comprehensive schematic diagrams included for maintenance
- Compact and durable chassis design
Basic Usage and Operation Tips
To operate the Icom IC-701PS, first ensure the antenna is properly connected and tuned for the desired frequency band. Power on the unit and select the operating mode suitable for your communication needs. Use the tuning dial to adjust frequency precisely, and monitor the signal strength meter to optimize transmission quality. Regularly adjust the volume and squelch controls to maintain clear reception. For best results, operate the transceiver in a well-ventilated area to prevent overheating.
Troubleshooting and Maintenance
If you experience issues such as weak transmission, distorted audio, or failure to power on, consult the detailed schematics to identify potential circuit faults. Common maintenance includes cleaning the connectors, checking antenna connections, and inspecting internal components for signs of wear or damage. Regularly verify the calibration of frequency and power output to ensure optimal performance. Avoid unauthorized modifications to preserve device integrity.
Safety Reminder
Always disconnect the transceiver from power sources before performing any maintenance or repairs. Use caution when handling internal components to avoid electric shock. Ensure proper grounding of the equipment to prevent static discharge and interference. Follow all local regulations regarding radio frequency transmissions to ensure safe and legal operation.