The Icom Service Manual for the IC-M58 VHF Marine Transceiver provides detailed information on setup, operation, and troubleshooting for five different versions of the device, including specifications, disassembly instructions, circuit descriptions, adjustment procedures, and parts lists. It emphasizes safety precautions such as avoiding exposure to liquids, not connecting to power sources over 16 V, and ensuring correct polarity to prevent damage to the transceiver.
Manual Overview
The Icom IC-M58 VHF Marine Transceiver service manual provides comprehensive guidance for troubleshooting, diagnostics, and maintenance. For troubleshooting, the manual emphasizes verifying internal issues before disassembly and ensuring the transceiver is disconnected from power. It advises against reversing power supply polarities and applying excessive RF signals to the antenna connector. Error codes and diagnostics are not explicitly detailed, but the manual stresses the importance of using insulated tools for adjustments and connecting attenuators when interfacing with test equipment. Calibration and adjustments are covered in sections dedicated to PLL, transmitter, and receiver adjustments, with specific procedures outlined for each. Board-level guidance includes detailed circuit descriptions and board layouts for the main and logic units, aiding in component identification and replacement. The manual also provides a parts list with ordering instructions, emphasizing the need for correct part numbers and quantities. Safety precautions are highlighted throughout to prevent damage to the transceiver and ensure technician safety.
Quick Issues Covered
- Diagnose power-up failures due to incorrect voltage supply.
- Calibrate transmitter and receiver circuits for optimal performance.
- Trace circuit schematics for troubleshooting and repairs.
Overview
The product is the IC-M58 VHF Marine Transceiver by Icom Inc. The service manual provides the latest service information for this transceiver, covering five versions designed for different regions: USA, Italy, United Kingdom, and France. The manual includes sections on specifications, disassembly and option installations, circuit descriptions, adjustment procedures, parts list, mechanical parts, semi-conductor information, board layouts, optional units, block diagram, and voltage diagram.
Specifications
- Frequency coverage
- Mode
- Number of memory channels
- Power supply requirement
- Current drain (at 13.8 V DC)
- Frequency stability
- Usable temperature range
- Dimensions
- Weight
- Output power
- Modulation system
- Maximum frequency deviation
- Spurious emissions
- Microphone impedance
- Audio frequency response
- FM noise and hum
- Receive system
- Intermediate frequency
- Sensitivity
- Squelch sensitivity
- Adjacent channel selectivity
- Spurious response rejection
- Intermodulation rejection
- Audio output power
- Audio output impedance
- Measurement method
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow, or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector as this could damage the transceiver’s front end.
Download MANUAL Service manual (PDF – 19.2 MB)
Icom IC-M58 service manual PDF for troubleshooting and repairing marine radios. File size: 19.2 MB.
- Brand: Icom-ic-m58-service
- Model: MANUAL
- Type: Service manual
- File size: 19.2 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 MANUAL service manual (PDF)
Icom-ic-m58-service MANUAL – Overview
The Icom IC-M58 is a reliable marine VHF transceiver designed for clear and effective communication on the water. This device is widely used by boaters, fishermen, and maritime professionals to ensure safety and coordination during marine activities. The Icom IC-M58 offers robust performance with waterproof construction, making it suitable for harsh marine environments.
Main Features and Specifications
- Waterproof design with IPX7 rating, allowing submersion up to 1 meter for 30 minutes
- Power output: 5 Watts for long-range communication
- Wide frequency coverage: 156.000 to 163.425 MHz
- 16 marine channels plus 10 memory channels for quick access
- Backlit LCD display for easy viewing in low-light conditions
- Built-in NOAA weather alert receiver
- Battery life: Up to 12 hours with standard NiMH rechargeable battery pack
- Simple one-touch emergency channel access (Channel 16)
Basic Usage and Operation Tips
To operate the Icom IC-M58, first ensure the battery is fully charged. Turn the device on by rotating the volume knob. Select the desired channel using the channel selector knob or keypad. For emergency communication, press the dedicated Channel 16 button. Use the push-to-talk (PTT) button to transmit your message, and release it to listen. Adjust the squelch control to minimize background noise. Always test your radio before heading out to ensure proper functionality.
Troubleshooting and Maintenance
If you experience weak transmission or reception, verify the battery charge and antenna connection. Clean the antenna and connectors regularly to prevent corrosion. If the device does not power on, try replacing or recharging the battery pack. Avoid exposing the radio to extreme temperatures or prolonged water immersion beyond the specified limits. Refer to the service manual for detailed troubleshooting guides and repair instructions.
Safety Reminder
Always use the Icom IC-M58 in accordance with maritime communication regulations. Avoid transmitting on unauthorized channels and keep the volume at a safe level to protect your hearing. Do not attempt repairs unless qualified, as improper handling may damage the device or void the warranty. Ensure the radio is securely mounted or carried to prevent accidental drops or water damage during use.