The Icom Service Manual for the IC-900A/E FM SUPER MULTI-BANDER SYSTEM transceiver provides comprehensive information on the theoretical, physical, mechanical, and electrical characteristics necessary for setup, operation, and troubleshooting. It includes details on unit connections, component parts, maintenance procedures, and adjustment guidelines, as well as instructions for ordering replacement parts and accessing further assistance from authorized Icom Dealers or Service Centers.
Overview
This service manual covers all service information related to the theoretical, physical, mechanical, and electrical characteristics of the IC-900A/E FM SUPER MULTI-BANDER SYSTEM transceiver. It includes details for five separate versions designed for different regions, and provides guidance on ordering replacement parts, unit connections, and various technical specifications.
Specifications
- e Expanded band 6 bands maximum
- e Memory channel 10 channels on each band
- e Frequency stability ~ +10ppm (—10°C ~ +60°C) (+14°F ~ +140°F)
- e Power supply requirement 13.8V DC +15% (negative ground)
- e Microphone impedance 600Ω
- e Audio output power More than 2.4W at 10% distortion with an 8Ω load
- e Audio output impedance 4~8Ω
- e Current drain (at 13.8V DC) 600mA (MAIN and SUB bands both standby) (except BAND UNITS) 1.2A (MAIN band transmitting and SUB band max. audio) 1.7A (MAIN and SUB bands both max. audio) Refer to BAND UNIT specifications for transmit current drain.
- e Dimensions
- REMOTE CONTROLLER 150(W) x 50(H) x 25(D) mm 5.9(W) x 2.0(H) x 1.0(D) inches
- INTERFACE UNIT-A 177 (W) x 25(H) x 177(D) mm 7.0(W) x 1.0(H) x 7.0(D) inches
- INTERFACE UNIT-B 177 (W) x 25(H) x 192(D) mm 7.0(W) x 1.0(H) x 7.6(D) inches (Projections not included)
- e Weight
- REMOTE CONTROLLER 200g (0.4 Ibs.)
- INTERFACE UNIT-A 500g (1.1 Ibs.)
- INTERFACE UNIT-B 900g (2.0 Ibs.)
- e Usable temperature range —10°C ~~ +60°C (+14°F ~ +140°F)
Controls & Indicators
The source provides detailed information about the front-panel controls and indicators of the IC-900A/E FM SUPER MULTI-BANDER SYSTEM transceiver. The remote controller includes the following controls and indicators:
– High/Low Power Switch
– Duplex Switch
– Power Switch
– Squelch Level Switches
– VFO Mode Switch
– Call Channel Switch
– Tone Switch
– Function Display
– Memory Write Switch
– Memory Read Switch
– Sub Band Switch
– Sub Band Mute Switch
– Main/Sub Band Selector Switch
– Tuning Step Switch
– MHz Step Switch
– Optional Squelch Switch
– Dimmer Switch
– Lock Switch
– Remote Jack
The function display includes:
– Main Band Display
– S/RF Indicator
– Tone Indicator
– Duplex Indicator
– Memory Channel Readout
– Sub Band Display
– Memory Mode Indicator
– Skip Channel Indicator
– Offset Write Indicator
– Low Power Indicator
– Optional Tone Squelch Indicator
– Optional Digital Code Indicator
– VXO Indicator
– RIT Indicator
– Tuning Step Indicator
– Programme Scan Indicator
– Band Edge Indicator
– Sub Band Indicator
– Lock Indicator
The interface units have the following connectors and indicators:
Interface Unit-A:
– [SPJ-2] Jack
– Optical Fiber Connector [Unit-B]
– Remote Jack
– [SPJ-1] Jack
– Power Connector [DC 13.8V]
– Mic Connector
Interface Unit-B:
– DC Power Output for Cooling Fan
– Optical Fiber Connector
– Power Output Terminals
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 – 15.3 MB)
Icom IC-900A/IC-900E Service Manual PDF (15.3 MB): Guides technicians in troubleshooting and calibrating radio systems efficiently.
- Brand: Icom-ic-900a-ic-900e-service
- Model: MANUAL
- Type: Service manual
- File size: 15.3 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-900A / IC-900E Service Manual Overview
The Icom IC-900A and IC-900E are advanced amateur radio transceivers designed for reliable communication across various frequency bands. These models are widely used by radio enthusiasts and professionals for their robust performance, high sensitivity, and clear audio quality. The service manual provides detailed guidance on maintenance, repair, and troubleshooting to ensure optimal operation of these transceivers.
Main Features and Specifications
- Frequency Coverage: VHF and UHF bands, supporting multiple amateur radio frequencies
- Power Output: Up to 50 watts for effective transmission
- Modulation Modes: FM, AM, and CW capabilities
- Advanced Receiver Sensitivity for clear signal reception
- Built-in Noise Blanker and Automatic Gain Control (AGC)
- Digital Display with frequency readout and channel memory
- Robust Construction for durability in various environments
Basic Usage and Operation Tips
To operate the IC-900A/IC-900E, first ensure the antenna is properly connected and tuned for the desired frequency band. Power on the unit and select the appropriate mode (FM, AM, or CW) depending on your communication needs. Use the frequency dial or keypad to set the transmission frequency, and adjust the volume and squelch controls for clear audio reception. Always monitor the signal strength and adjust power output to maintain effective communication without causing interference.
Troubleshooting and Maintenance Notes
Regularly inspect connectors and cables for wear or corrosion to prevent signal loss. If the transceiver fails to power on, check the power supply and fuses. For audio issues, verify speaker connections and microphone functionality. The manual includes detailed circuit diagrams and parts lists to assist with component-level repairs. Periodic cleaning of cooling vents and internal components is recommended to avoid overheating and ensure longevity.
Safety Reminder
Always disconnect the transceiver from the power source before performing any maintenance or repairs. Avoid exposure to high voltage areas inside the device. Use only manufacturer-recommended replacement parts to maintain safety and performance standards. Follow all local regulations regarding radio transmission to prevent interference and ensure safe operation.