The Icom service manual provides detailed instructions for setting up, operating, and troubleshooting the IC-u2A/AT/E handheld transceiver, covering aspects such as circuit descriptions, mechanical disassembly, and adjustments for various components. It includes specific information for different versions of the transceiver designed for regions like the U.S.A., Europe, Australia, and Southeast Asia, ensuring comprehensive guidance for users across these areas.
Manual Overview
The Icom IC-u2A/AT/E service manual provides comprehensive guidance for servicing and troubleshooting the handheld transceiver. It includes detailed troubleshooting flowcharts and error code diagnostics to assist technicians in identifying and resolving issues efficiently. Calibration and adjustment procedures are outlined for key components such as the PLL, receiver, transmitter, and tone systems, ensuring optimal performance. The manual provides board-level guidance with detailed circuit descriptions for receiver, transmitter, PLL, logic, and power supply circuits, aiding in component-level repairs. Disassembly instructions are provided for various parts, including the front panel, speaker, and rear case, facilitating access to internal components. The manual also includes voltage diagrams and board layouts for the main unit, VCO, tone call, and DTMF units, which are crucial for precise troubleshooting and repairs. Technicians can refer to the parts list and schematic diagrams for component identification and replacement. This manual is essential for maintaining the functionality and reliability of the Icom IC-u2A/AT/E transceivers across different regions.
Quick Issues Covered
- Diagnose power-up failures with voltage diagram guidance.
- Calibrate PLL circuits for frequency stability issues.
- Trace circuits using detailed schematic diagrams.
Overview
The ICOM IC-u2A/AT/E is a technologically advanced, pocket-sized handheld transceiver known for its flexibility and compact design. It is suitable for various uses and incorporates the latest ICOM technical innovations. The service manual covers eight versions of the IC-u2A/AT/E, designed for different regions including the USA, Europe, Australia, and Southeast Asia. The manual provides comprehensive coverage for each version, detailing specifications, circuit descriptions, disassembly instructions, maintenance, and adjustments.
Specifications
- Frequency coverage and tuning step
- #02 Europe (1) 144.00~145.9875 TONE CALL 12.5
- #03 Europe (2) 144.00~145.995 TONE CALL 5
- #04 Europe (3) 140.00~149.9875 TONE CALL 12.5
- #05 U.S.A. (1) 140.00~149.995 DTMF/ENCODER 5
- #06 U.S.A. (2) 140.00~149.995 5
- #07 Australia 144.00~147.995 5
- #08 Asia 140.00~149.995 5
- #09 Asia 140.00~149.995 SUBAUDIBLE ENCODER 5
- Guaranteed frequency range: 144.00~148.00 MHz
- Antenna impedance 500 unbalance
- Usable temperature —10°C~+60°C
- Frequency stability +15ppm at 0°C~60°C
- Current drain at 8.4V DC Receiving Power saved Approx. 6mA
- Squelched Max. 30mA
- At max. audio output Max. 170mA
- Transmitting High (1.0W) Max. 600mA
- Low (0.1W) Max. 300mA
- Dimensions (with BP-22) 58 (61) W x 140(148) H x 29(33) D mm
- Weight (with BP-22) 340g
- TRANSMITTER
- Output power HIGH 1.0W LOW 0.1W
- Emission mode 16KOF3E
- Modulation system Variable reactance frequency modulation
- Max. frequency deviation +5kHz
- Spurious emission More than 60dB below carrier
- RECEIVER
- Receiving system Double-conversion superheterodyne
- Intermediate frequencies 1st 16.9MHz 2nd 455kHz
- Modulation acceptance 16KOF3E
- Sensitivity Less than 0.25uV (—119dBm) for 12dB SINAD
- Squelch sensitivity (Threshold) Less than 0.1uV (—127dBm)
- Spurious response rejection ratio More than 60dB
- Audio output power More than 0.25W at 10% distortion with an 8Q load
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
Refer to the PDF for details.
Download MANUAL Service manual (PDF – 3.0 MB)
Service manual PDF for Icom IC-Micro2A/2AT/2E: troubleshoot, repair, and calibrate radio components. File size: 3.0 MB.
- Brand: Icom-ic-micro2a-ic-micro2at-ic-micro2e-service
- Model: MANUAL
- Type: Service manual
- File size: 3.0 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-Micro2A / IC-Micro2AT / IC-Micro2E Service Manual Overview
The Icom IC-Micro2A, IC-Micro2AT, and IC-Micro2E are compact, handheld VHF marine transceivers designed for reliable communication on the water. These devices provide clear voice transmission and reception, making them essential tools for marine safety and coordination. This service manual offers detailed guidance on repair, maintenance, and troubleshooting to ensure optimal performance and longevity of your Icom transceiver.
Main Features and Specifications
- Frequency Range: VHF marine band (156.000 – 162.025 MHz)
- Power Output: 1W (low) and 5W (high) selectable
- Waterproof Construction: IPX7 standard for submersion up to 1 meter for 30 minutes
- Channel Capacity: 16 marine channels including emergency channel 16
- Battery: Rechargeable NiMH battery pack with long operating time
- LCD Display: Backlit for easy viewing in low light conditions
- Built-in Squelch Control and Scan Functions
Basic Usage and Operation Tips
To operate the IC-Micro2 series transceiver, first ensure the battery is fully charged. Turn the power on and select the desired channel using the channel selector knob. Use the push-to-talk (PTT) button to transmit your message, and release it to listen. Adjust the volume and squelch controls for clear audio reception. Always monitor channel 16 for emergency communications when on the water.
Troubleshooting and Maintenance
If you experience poor audio quality or transmission issues, check the battery charge and antenna connection first. Regularly clean the exterior with a soft cloth and avoid exposure to saltwater or extreme temperatures. Refer to this service manual for detailed circuit diagrams and repair instructions if internal components require servicing. Replace the battery pack as recommended to maintain reliable operation.
Safety Reminder
Always use the Icom IC-Micro2 transceiver in accordance with marine communication regulations. Avoid operating the device during thunderstorms or in hazardous weather conditions. Ensure the device is securely mounted or held to prevent accidental drops or water damage. Proper maintenance and cautious operation help ensure your safety and effective communication at sea.