The Icom service manual for the IC-H19s1 and IC-H19s2 VHF transceivers provides detailed instructions on setup, operation, and troubleshooting, including guidelines for safe servicing, component replacement, and adjustment procedures. It emphasizes the importance of using the correct power supply, avoiding exposure to liquids, and ensuring that service is conducted in non-hazardous areas to maintain intrinsic safety certification.
Manual Overview
The Icom IC-H19s1 and IC-H19s2 VHF transceivers service manual provides detailed guidance for troubleshooting, diagnostics, calibration, and adjustments. For troubleshooting, technicians are advised to ensure issues are internal before disassembly and to disconnect power before opening the transceiver. Error diagnostics include avoiding RF signals over 20 dBm to prevent front-end damage. Calibration and adjustments require careful handling of variable components using insulated tools, with specific procedures outlined for PLL, receiver, and transmitter adjustments. Board-level guidance includes detailed layouts for LED, VR, power, logic, main, RE, VCO, SQL, and LPF units. The manual emphasizes the importance of using only approved safety-critical components to maintain intrinsic safety certification. When ordering parts, technicians must provide detailed information, including order numbers and component details. The manual also includes sections on mechanical parts, disassembly, and voltage diagrams, with additional programming information available in a separate manual.
Quick Issues Covered
- Diagnose power-up failures with voltage diagram section.
- Identify error codes using receiver circuit descriptions.
- Calibrate PLL using adjustment procedures section.
Overview
This service manual provides detailed service information for the IC-H19s1 and IC-H19s2 VHF transceivers. It includes specifications, circuit descriptions, mechanical parts, disassembly instructions, adjustment procedures, board layouts, and options information. The manual also covers safety precautions and ordering parts instructions, emphasizing the intrinsically safe qualification requirements for servicing the transceivers.
Specifications
- Frequency range 136~174 MHz
- Type of emission 16KOF3E
- Number of channels Up to 16 channels
- Frequency stability +0.0005 %
- Antenna impedance 50 © unbalanced
- Power supply voltage BATTERY PACK OUTPUT VOLTAGE
- Usable temperature range —30 °C +60 °C
- Dimensions 65 (W)x 109 (H)x 35 (D) mm
- Weight (with CM-71) 590 g
- RF output power (At 13.2 V DC) High: 5 W
- Modulation system Variable reactance frequency modulation
- Current drain (At 13.2 V DC) High: 1.8A
- Microphone impedance 2.2 kQO
- Maximum deviation +5 kHz
- Spurious emissions —65 dB
- FM hum and noise ~-50 dB
- Audio response +1 dB, —3 dB of +6 dB/octave from 300 Hz to 3000 Hz
- Sensitivity 0.25 pV at 12 dB SINAD
- Squetch sensitivity 0.25 pV
- Modulation acceptance +7 kHz
- Current drain (At 13.2 V DC) Audio max. 0.3A
- Audio output power OUTPUT POWER
- Adjacent channel selectivity —70 dB
- Spurious rejection —70 dB
- Image rejection —75 dB
- Intermodulation rejection —70 dB
- Hum and noise —40 dB
- Audio response +1 dB, —3 dB of — 6 dB/octave from 300 Hz to 3000 Hz
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
The safety warnings and precautions explicitly present in the manual are as follows:
1. Never connect the transceiver to an AC outlet or to a DC power supply that uses more than 14 V, as this will ruin the transceiver.
2. Do not expose the transceiver to rain, snow, or any liquids.
3. Do not reverse the polarities of the power supply when connecting the transceiver.
4. Do not apply an RF signal of more than 20 dBm (100 mW) to the antenna connector, as this could damage the transceiver’s front end.
5. Servicing the IC-H19s1 and IC-H19s2 transceivers should only be undertaken by suitably qualified personnel in a non-hazardous area. Never attempt to remove the case in a hazardous area.
6. Only the approved battery, ICOM’s CM-71, may be used, and this battery may only be removed or charged in a safe area.
7. Use only safety-critical components as specified in the parts list should replacement of any item be necessary.
8. Make sure a problem is internal before disassembling the transceiver.
9. Do not open the transceiver until it is disconnected from its power source.
10. Do not force any of the variable components; turn them slowly and smoothly.
11. Do not short any circuits or electronic parts. An insulated tuning tool must be used for all adjustments.
12. Do not keep power on for a long time when the transceiver is defective.
13. Do not transmit power into a signal generator or a sweep generator.
14. Always connect a 30 dB~40 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment.
15. Read the instructions of test equipment thoroughly before connecting equipment to the transceiver.
Download MANUAL Service manual (PDF – 14.2 MB)
Icom IC-H19S1/IC-H19S2 Service Manual PDF: 14.2 MB. Guides technicians in troubleshooting, calibration, and assembly procedures.
- Brand: Icom-ic-h19s1-ic-h19s2-service
- Model: MANUAL
- Type: Service manual
- File size: 14.2 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-H19S1 / IC-H19S2 Service Manual Overview
The Icom IC-H19S1 and IC-H19S2 are handheld marine VHF transceivers designed for reliable communication on the water. These rugged devices provide clear voice transmission and reception, ensuring safety and coordination during marine activities. The service manual offers comprehensive guidance on maintenance, repair, and troubleshooting to keep your transceiver operating at peak performance.
Main Features and Specifications
- Frequency Range: Marine VHF band (156.000 to 162.025 MHz)
- Power Output: 5 Watts (high) and 1 Watt (low)
- Waterproof Construction: Complies with IPX7 standard for water resistance
- LCD Display: Easy-to-read channel and status indicators
- Built-in NOAA Weather Alert Receiver
- Battery Life: Long-lasting rechargeable battery pack
- Channel Scan and Dual Watch Functions
- Compact and Ergonomic Design for handheld use
Basic Usage and Operation Tips
To operate the IC-H19S1 or IC-H19S2, power on the device and select the desired channel using the channel selector knob. Adjust the volume to a comfortable listening level. Press and hold the push-to-talk (PTT) button to transmit your message, releasing it to listen. Utilize the dual watch feature to monitor two channels simultaneously, enhancing communication efficiency. Always ensure the battery is fully charged before use, and store the transceiver in a dry, secure place when not in use.
Troubleshooting and Maintenance
If you experience weak transmission or reception, check the antenna connection and ensure it is securely attached. Clean the device regularly with a soft, damp cloth to remove salt and dirt buildup. Replace the battery pack if you notice reduced operating time. Refer to the service manual for detailed circuit diagrams and component specifications to assist with repairs. Avoid exposing the transceiver to extreme temperatures or prolonged moisture to prevent damage.
Safety Reminder
Always follow marine communication regulations and use the transceiver responsibly. Do not operate the device while navigating or performing tasks that require full attention. Ensure the device is turned off during refueling or in explosive environments to prevent sparks. Proper maintenance and adherence to safety guidelines will ensure reliable operation and extend the life of your Icom transceiver.