The Icom Service Manual for the IC-2400A/E and IC-2500A/E dual band FM transceivers provides detailed information on specifications, circuit descriptions, mechanical parts, and adjustment procedures necessary for setup and operation. It also includes troubleshooting guidelines, such as ensuring the transceiver is disconnected from power before disassembly and using an insulated tuning tool for adjustments, to prevent damage during maintenance.
Overview
This service manual provides detailed information for the IC-2400A, IC-2400E, IC-2500A, and IC-2500E dual band FM transceivers. It includes specifications, circuit descriptions, mechanical parts and disassembly instructions, parts lists, adjustment procedures, board layouts, and diagrams. The manual also contains safety warnings, such as not connecting the transceiver to an AC outlet or a DC power supply over 16 V, and precautions for handling and servicing the equipment.
Specifications
- MODEL IC-2400A/E IC-2500A/E
- BAND 144 MHz 430 or 440 MHz | 430 or 440 MHz 1200 MHz
- (Rx) 138~174 440~450 440~450 1240~1300
- USA (Tx) 140~150 440~450 440~450 1240~1300
- coverage. 144~148 430~440 430~440 1240~1300
- Europe 144~146 430~440 430~440 1240~1300
- Tuning step 5, 10, 15, 20 or 25 kHz 10 or 20 kHz
- increment 12.5 or 25 kHz 12.5 or 25 kHz
- Memory channels 40 and 2 call channels
- Mode FM (F3)
- Antenna impedance 50 Q (unbalanced)
- Power supply requirement 13.8 V DC+15% (negative ground)
- Current drain
- HIGH 10.5A 105A 105A 6.6A
- Transmit
- LOW 4.5A 5.0A 5.0A 40A
- Squelched 10A 1.0A 10A 1.0A
- Receive
- Max. audio output 14A 144A 114A 14A
- Usable temperature range —10°C~ +60°C (+14° F~ + 140° F)
- Dimensions 150 (W) x 50 (H) x 195 (D) mm
- (projections not included) 5.9 (W) x 2.0(H) x 7.7 (D) in
- Weight 1.7 kg (3.7 Ib) 1.8 kg (4.0 Ib)
- HIGH 45 W 35 W 35 W W
- 10
- Output power
- LOW 5W 5W 5W 1W
- Spurious emissions —50 dB (at 10 W)
- (less than) 60 dB 60 dB 60 dB —40 dB (at 1 W)
- Microphone impedance 600
- ist 17.2 MHz 30.875 MHz 30.875 MHz 136.6 MHz
- Intermediate 455 kHz 17.2 MHz
- frequencies 2nd 455 kHz 455 kHz
- 3rd — — 455 kHz
- 0.18 pV 0.18 HV 0.18 pV 0.22 UV
- Sensitivity (for 12 dB SINAD)
- Sensitivites are less than the above values.
- Spurious response rejection Less than –60 dB (except 1/2 IF on 1200 MHz)
- Audio output power More than 2.4 W at 10 % distortion with an 8 Q load
- Auido output impedance A~8Q
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 – 25.7 MB)
Service manual PDF for Icom IC-2400A/E & IC-2500A/E; 25.7 MB. Guide for troubleshooting, repair, and calibration of transceiver units.
- Brand: Icom-ic-2400a-ic-2400e-ic-2500a-ic-2500e-service
- Model: MANUAL
- Type: Service manual
- File size: 25.7 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-2400A / IC-2400E / IC-2500A / IC-2500E Service Manual Overview
The Icom IC-2400A, IC-2400E, IC-2500A, and IC-2500E are professional-grade mobile transceivers designed for reliable two-way communication in various commercial, public safety, and amateur radio applications. These radios provide clear voice transmission and reception with advanced features tailored for efficient field operations. This service manual offers comprehensive guidance on maintenance, repair, and technical specifications to ensure optimal performance and longevity of your device.
Main Features and Specifications
- Frequency Range: VHF (IC-2400A/E) and UHF (IC-2500A/E) bands
- Power Output: Up to 50 Watts for strong signal transmission
- 128 Memory Channels for storing frequently used frequencies
- CTCSS and DCS Tone Encoding/Decoding for selective calling
- Wide/Narrow Bandwidth Selection for flexible communication
- Built-in DTMF Encoder for remote control and signaling
- LCD Display with backlight for easy readability in low light
- Durable construction suitable for harsh environments
Basic Usage and Operation Tips
To operate your Icom transceiver effectively, first ensure the antenna is properly connected and the device is powered with the correct voltage. Select the desired channel using the channel selector knob or keypad. Adjust the volume and squelch controls to optimize audio clarity and reduce background noise. Use the push-to-talk (PTT) button to transmit your voice, releasing it to listen. Regularly update memory channels to keep communication efficient and organized.
Troubleshooting and Maintenance Notes
If you experience poor transmission quality or reception issues, verify antenna connections and inspect for physical damage. Check power supply voltage and fuse integrity. Refer to the service manual’s diagnostic flowcharts for detailed troubleshooting steps. Periodically clean the exterior and connectors to prevent dust accumulation. Avoid exposing the unit to moisture or extreme temperatures to maintain reliability.
Safety Reminder
Always follow safety guidelines when installing and operating your Icom transceiver. Avoid transmitting in areas where radio signals may interfere with sensitive equipment or pose hazards. Disconnect the power source before performing any maintenance or repairs. Use only manufacturer-approved accessories and replacement parts to ensure safe and proper function.