The Icom service manual for the IC-2SA/SE 144 MHz FM transceiver provides detailed information on setup, operation, and troubleshooting, including specifications, circuit descriptions, adjustment procedures, and parts lists for different regional versions. It emphasizes safety precautions such as avoiding exposure to liquids and ensuring correct power supply connections to prevent damage to the device.
Manual Overview
The Icom IC-2SA/SE service manual provides comprehensive guidance for servicing the 144 MHz FM transceiver, covering multiple versions for different regions. It emphasizes the importance of proper connection and handling to prevent damage, such as avoiding AC outlets, ensuring correct polarity, and not exceeding specified signal levels. Troubleshooting begins with verifying internal issues before disassembly and ensuring the transceiver is disconnected from power. Calibration and adjustments require careful handling of variable components with insulated tools and adherence to specific procedures for PLL, receiver, and transmitter adjustments. The manual includes detailed board-level guidance, with layouts for various units like the MAIN, MBD, and PLL units, aiding in diagnostics and repairs. Error codes and diagnostics are not explicitly detailed, but the manual stresses the use of appropriate test equipment with attenuators to prevent damage. For parts replacement, it provides a structured ordering process, ensuring correct identification and quantity of components.
Quick Issues Covered
- Diagnose power-up failures with voltage diagram reference.
- Identify error codes using CPU port allocations.
- Use schematics for circuit tracing and fault isolation.
Overview
This service manual provides detailed service information for the Icom IC-2SA/SE 144 MHz FM Transceiver. It covers five versions of the transceiver designed for different regions: Europe, Italy, USA, Australia, and Asia. The manual includes specifications, circuit descriptions, adjustment procedures, and parts lists. It also provides safety warnings and repair notes to ensure proper handling and servicing of the transceiver.
Specifications
- Frequency coverage: USA 144.00-148.00 MHz, Asia 144.00-150.00 MHz, Italy 144.00-148.00 MHz, Australia 144.00-148.00 MHz, Europe 144.00-146.00 MHz
- Mode: F3 (FM)
- Selectable tuning step: 5, 10, 12.5, 15, 20, 25, 50 kHz
- Memory channels: 48 plus a call channel
- Antenna impedance: 50Ω
- Power supply requirement: 6-16 V DC negative ground or battery packs BP-81~BP-85 or battery case BP-90
- Current drain (at 13.8 V DC): Receive 16 mA (power saved), 210 mA (max. audio output), Transmit 450 mA (LOW 1), 4200 mA (HIGH)
- 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-82): 49 (W) x 103.5 (H) x 33 (D) mm
- Weight (with BP-82): 270 g
- Output power (at 13.8 V DC): High 5.0 W, Low 3.5/1.5/0.5 W (selectable)
- Modulation system: Variable reactance frequency modulation
- Max. frequency deviation: +5 kHz
- Spurious emissions: Less than —60 dB
- Microphone impedance: 2 kΩ
- Receive system: Double-conversion superheterodyne
- Intermediate frequencies: 1st 30.875 MHz, 2nd 455 kHz
- Sensitivity: 0.18 μV for 12 dB SINAD
- Selectivity: More than 15 kHz/—6 dB, Less than 30 kHz/—60 dB
- Spurious rejection ratio: More than 60 dB
- Audio output power: More than 200 mW at 10 % distortion with an 8 Ω load
- Audio output impedance: 8Ω
Controls & Indicators
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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 as 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 AF signal of more than 20 dBm (100 mW) to the antenna connector as 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 a 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 30 dB ~ 40 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 – 16.8 MB)
Icom IC-2SA/IC-2SE service manual PDF for troubleshooting and calibrating radio equipment. File size: 16.8 MB.
- Brand: Icom-ic-2sa-ic-2se-service
- Model: MANUAL
- Type: Service manual
- File size: 16.8 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-2SA / IC-2SE Service Manual Overview
The Icom IC-2SA and IC-2SE are compact handheld transceivers designed for reliable two-way communication. Widely used by amateur radio enthusiasts and professionals alike, these models provide clear voice transmission and reception across VHF frequencies. This service manual offers detailed technical information, schematics, and repair guidelines essential for maintaining and servicing these devices.
Main Features and Specifications
- Frequency Range: VHF band coverage suitable for amateur radio use
- Power Output: Adjustable transmission power for efficient battery usage
- Channel Memory: Multiple programmable channels for quick access
- Battery Type: Rechargeable Ni-Cd or Ni-MH battery packs
- Display: Simple LED indicators for channel and status information
- Compact and lightweight design for portability
- Built-in squelch control to reduce background noise
Basic Usage and Operation Tips
To operate the IC-2SA/IC-2SE, first ensure the battery is fully charged. Turn on the device using the power switch and select the desired channel via the channel selector knob. Adjust the volume and squelch controls for clear audio reception. Press the push-to-talk (PTT) button to transmit your voice; release it to listen. Regularly program frequently used channels to streamline communication during active use.
Troubleshooting and Maintenance Notes
If you experience weak transmission or reception, verify the antenna connection and battery condition. Replace batteries if the device powers off unexpectedly or shows low voltage. Clean the exterior and connectors periodically to prevent dust buildup. Refer to the service manual’s schematic diagrams for in-depth troubleshooting of circuit issues. Avoid attempting repairs without proper technical knowledge to prevent damage.
Safety Reminder
Always operate the Icom IC-2SA/IC-2SE in accordance with local regulations and licensing requirements. Avoid using the transceiver near explosive materials or in hazardous environments. Ensure the device is turned off before replacing batteries or performing maintenance. Proper handling and adherence to safety guidelines will prolong the lifespan of your equipment and ensure safe operation.