The Icom service manual for the IC-P2AT/ET 144 MHz FM Transceiver provides detailed instructions on setup, operation, and troubleshooting for various versions of the device, including circuit descriptions, adjustment procedures, and board layouts. It also includes safety precautions, repair notes, and guidelines for ordering replacement parts to ensure proper maintenance and functionality of the transceiver.
Manual Overview
The Icom IC-P2AT/ET service manual provides detailed instructions for servicing the 144 MHz FM Transceiver, covering various regional versions. It emphasizes safety precautions, such as avoiding AC outlets and ensuring correct polarity when connecting power supplies. Troubleshooting involves confirming internal issues before disassembly and using insulated tools for adjustments. Calibration procedures include PLL, receiver, and transmitter adjustments, with specific steps outlined for each. The manual details error diagnostics, focusing on circuit descriptions, including antenna switching, RF, and IF circuits. Board-level guidance is provided through detailed layouts of logic, main, and other units, aiding in component identification and replacement. The manual also includes a comprehensive parts list with ordering instructions, emphasizing the importance of using correct part numbers and quantities. Additionally, it covers optional units like tone squelch and encoder units, providing a complete overview for technicians to effectively service and maintain the transceiver.
Quick Issues Covered
- Diagnose power-up failures due to incorrect voltage supply connections.
- Calibrate PLL circuits for optimal frequency stability and performance.
- Trace circuit schematics for RF and APC units to troubleshoot issues.
Overview
This service manual provides the latest service information for the IC-P2AT/ET 144 MHz FM Transceiver. It covers six versions of the transceiver, each designed for different regions, including Europe, the United Kingdom, Italy, the USA, Australia, and Asia. The manual includes sections on specifications, circuit descriptions, mechanical parts, disassembly, adjustment procedures, board layouts, and optional units. The manual also provides repair notes and guidelines for ordering replacement parts.
Specifications
- Frequency coverage: USA 140~150 MHz (TX), 138~174 MHz; Australia 144~148 MHz; Asia 140~150 MHz (TX), 138~174 MHz (RX); Europe, United Kingdom 144~146 MHz; Italy 140~150 MHz
- Mode: FM
- Tuning steps: 5, 10, 12.5, 15, 20, 25, 30 or 50 kHz
- Dial select steps: 100 kHz or 1 MHz
- Number of channels: Memory channels 100, Call channels 1, Scan edge channels 2
- Antenna impedance: 50 Ω (nominal)
- Usable battery pack or case: BP-110~BP-114
- External DC power supply: 6~16 V DC (negative ground)
- Current drain (at 13.8V DC): Transmit High 15A, Low 1 650 mA; Receive Power saved 16 mA (typical), Rated audio output 250 mA
- Usable temperature range: —10 °C~+60 °C (+14 °F~+140 °F)
- Frequency stability: +15 ppm (—10 °C~+60 °C; +14 °F~+140 °F)
- Dimensions (with BP-111): 49 (W)x 105 (H) x 38.5 (D) mm
- Weight (with BP-111): 280 g (9.9 oz)
- TRANSMITTER
- Output power (at 13.8 VDC): 5.0, 3.5, 1.5 W or 500 mW (selectable)
- Modulation system: Variable reactance frequency modulation
- Max. frequency deviation: +5 kHz
- Spurious emissions: Less than —60 dB
- Microphone impedance: 2kΩ
- Heatsink duty cycle: Transmit: Receive=1 min.: 3 min.
- RECEIVER
- Receive system: Double-conversion superheterodyne
- Intermediate frequencies: 1st 30.875 MHz, 2nd 455 kHz
- Sensitivity: Less than 0.16 μV for 12 dB SINAD
- Squelch sensitivity (threshold): Less than 0.1 μV
- Selectivity: More than 15 kHz/—6 dB, Less than 30 kHz/—60 dB
- Spurious response rejection: Less than —60 dB
- Audio output power: 200 mW at 10 % distortion with an 8 Ω load
- Audio output impedance: 8 Ω
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
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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 it 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 40 dB~50 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 – 16.0 MB)
Icom IC-P2AT/IC-P2ET service manual PDF for troubleshooting, calibrating, and repairing radio components. File size: 16.0 MB.
- Brand: Icom-ic-p2at-ic-p2et-service
- Model: MANUAL
- Type: Service manual
- File size: 16.0 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-P2AT / IC-P2ET Service Manual Overview
The Icom IC-P2AT and IC-P2ET are compact, handheld two-way radios designed for reliable communication in various professional and recreational environments. These models offer clear voice transmission, durable construction, and user-friendly operation, making them ideal for outdoor activities, security personnel, and event coordination.
Main Features and Specifications
- Frequency Range: VHF/UHF bands depending on model
- Power Output: Up to 5 watts for extended communication range
- Channel Capacity: 16 programmable channels
- Compact and lightweight design for easy portability
- Built-in CTCSS and DCS for privacy and interference reduction
- Battery Life: Long-lasting rechargeable battery pack
- Durable casing with water-resistant construction
- Simple push-to-talk (PTT) operation with adjustable volume control
Basic Usage and Operation Tips
To operate the IC-P2AT or IC-P2ET, turn on the radio using the power knob and select the desired channel. Press and hold the push-to-talk (PTT) button to transmit your message; release it to listen. Adjust the volume knob to a comfortable listening level. For optimal performance, keep the antenna upright and avoid obstructions. Regularly recharge the battery pack to ensure uninterrupted use during critical communication.
Troubleshooting and Maintenance
If you experience poor audio quality or limited range, check the antenna connection and ensure the battery is fully charged. Interference can often be reduced by switching channels or enabling CTCSS/DCS codes. Clean the radio exterior with a soft, dry cloth and avoid exposure to extreme temperatures or moisture. For persistent issues, refer to the detailed troubleshooting section in the service manual or contact authorized Icom service centers.
Safety Reminder
Always use the Icom IC-P2AT and IC-P2ET radios in accordance with local regulations and guidelines. Avoid operating the radio while driving or performing tasks requiring full attention. Keep the device away from explosive environments and do not attempt unauthorized repairs. Proper handling and maintenance will ensure safe and reliable communication.