The Icom IC-M802 service manual provides detailed information on specifications, circuit descriptions, adjustment procedures, and parts lists for the MF/HF marine transceiver. It includes guidelines for safe setup, operation, and troubleshooting, emphasizing precautions such as avoiding exposure to liquids and ensuring correct power supply connections to prevent damage.
Manual Overview
The Icom IC-M802 service manual provides detailed guidance for servicing the MF/HF marine transceiver. For troubleshooting, the manual emphasizes ensuring issues are internal before disassembly and advises against opening the transceiver while connected to a power source. It highlights the importance of using insulated tuning tools for adjustments and cautions against keeping the power on for extended periods if the transceiver is defective. The manual includes a section on error codes and diagnostics to aid in identifying and resolving issues. Calibration and adjustments require careful handling of variable components, ensuring they are turned slowly and smoothly. Board-level guidance is provided through detailed layouts and diagrams for various boards such as the main unit, DSP board, and filter board. The manual also includes specifications for frequency coverage, power requirements, and transmitter/receiver characteristics, ensuring technicians have comprehensive information for effective maintenance and repair.
Quick Issues Covered
- Diagnose power-up failures due to incorrect voltage supply.
- Error codes for RF signal overload at antenna connector.
- Circuit tracing with detailed wiring and block diagrams.
Overview
The IC-M802 is an MF/HF marine transceiver manufactured by Icom Inc. The service manual provides detailed service information for the transceiver, including specifications, circuit descriptions, adjustment procedures, parts lists, and mechanical disassembly instructions. It covers various sections such as specifications, inside views, circuit description, adjustment procedures, parts list, mechanical parts and disassembly, semiconductor information, board layouts, block diagrams, wiring diagrams, and voltage diagrams. The manual also includes safety warnings and repair notes to ensure proper handling and servicing of the transceiver.
Specifications
- Frequency coverage: Receive 500 kHz—29.9999 MHz, Transmit 12.0000—27.5000 MHz
- Mode: TX/RX J3E (USB/LSB), J2B (AFSK), F1B (FSK), A1A (CW)
- Antenna impedance: 50 Q
- Frequency stability: +10 Hz [USA], [CAN], +20 Hz [OTH]
- Power supply requirement: 13.6 V DC
- Current drain: RX; 3.0 A, TX; 30 A typical
- Usable temperature range: -20°C to +55°C
- Dimensions: 240(W) x 94(H) x 238.4(D) mm
- Weight: 4.7 kg
- Output power: 150, 60, 20 W PEP
- Spurious emissions: -62 dB
- Carrier suppressions: 40 dB
- Unwanted sideband suppression: 55 dB
- Microphone impedance: 600 Q
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. This could damage the transceiver’s front end. Make sure a problem is internal before disassembling the transceiver. DO NOT open the transceiver until the transceiver is disconnected from its power source. DO NOT force any of the variable components. Turn them slowly and smoothly. DO NOT short any circuits or electronic parts. An insulated tuning tool MUST be used for all adjustments. DO NOT keep power ON for a long time when the transceiver is defective. DO NOT transmit power into a signal generator or a sweep generator. ALWAYS connect a 50 dB to 60 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.
Download MANUAL Service manual (PDF – 7.9 MB)
Icom IC-M802 Service Manual PDF (7.9 MB) helps technicians troubleshoot, repair, and maintain the Icom IC-M802 radio system.
- Brand: Icom-ic-m802-service
- Model: MANUAL
- Type: Service manual
- File size: 7.9 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 MANUAL service manual (PDF)
Icom-ic-m802-service MANUAL Overview
The Icom IC-M802 is a high-performance marine transceiver designed for reliable long-distance communication on the water. This device supports multiple modes including SSB (Single Side Band) and AM (Amplitude Modulation), making it ideal for both professional and recreational maritime operators. The IC-M802 offers clear audio quality, robust build, and advanced features that enhance communication safety and efficiency at sea.
Main Features and Specifications
- Frequency Coverage: 1.6 MHz to 29.999 MHz
- Modes Supported: SSB, AM, CW
- Output Power: 100 Watts (SSB), 25 Watts (AM)
- Large, easy-to-read LCD display with backlight
- Built-in Automatic Noise Limiter (ANL) and Automatic Gain Control (AGC)
- Multiple memory channels for quick frequency recall
- Water-resistant front panel suitable for marine environments
- External speaker and microphone connectivity
Basic Usage and Operation Tips
To operate the IC-M802, first ensure the antenna is properly connected and the power supply is stable. Use the tuning dial to select the desired frequency and mode. Adjust the volume and squelch controls for clear audio reception. Utilize memory channels to store frequently used frequencies for quick access. Regularly check the SWR (Standing Wave Ratio) meter to ensure antenna efficiency and prevent damage. Always follow marine communication protocols when transmitting.
Troubleshooting and Maintenance
If you experience poor transmission quality or reception issues, verify antenna connections and inspect cables for damage. Clean the device’s exterior with a soft, dry cloth to prevent salt and moisture buildup. Periodically check and replace fuses if necessary. For persistent problems, refer to the detailed troubleshooting section in the manual or contact authorized service centers. Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods.
Safety Reminder
Always power off the transceiver before performing any maintenance or connecting external devices. Use only manufacturer-recommended accessories and replacement parts. Avoid operating the radio during electrical storms to reduce the risk of lightning damage. Ensure proper grounding of the equipment to enhance safety and performance while at sea.