The Icom VP-21 Marine Plotter service manual provides detailed instructions for setup, operation, and troubleshooting, including sections on specifications, function checklists, and adjustment procedures. It also includes troubleshooting flow charts for the main and CRT units, as well as guidelines for ordering parts and disassembling mechanical components.
Manual Overview
The Icom VP-21 Marine Plotter Service Manual provides comprehensive guidance for troubleshooting, diagnostics, and maintenance of the device. The manual emphasizes the importance of safety due to the high voltages present, advising technicians to use insulated tools and avoid direct contact with high voltage circuits, particularly around the CRT unit. Troubleshooting flowcharts are detailed for both the main and CRT units, helping technicians systematically identify and resolve issues. Error codes and diagnostics are covered under the function checklist, confirming operational status through various button sequences and external connections. Calibration and adjustments require careful handling of variable components, with specific instructions to avoid forcing parts and ensuring all adjustments are made with insulated tools. Board-level guidance is provided through detailed board layouts and block diagrams, aiding in the identification and replacement of faulty components. The manual also includes a parts ordering section, specifying the need for precise order details, and a disassembly section for mechanical parts, ensuring proper handling and reassembly.
Quick Issues Covered
- Diagnose CRT unit issues using troubleshooting flow chart.
- Check and adjust notch filter for optimal performance.
- Use block diagram for effective circuit tracing and repairs.
Overview
The ICOM VP-21 is a marine plotter manufactured by Icom Inc. The service manual provides detailed instructions on handling high voltage components, ordering replacement parts, and conducting repairs. It includes sections on specifications, function checklists, troubleshooting, signal descriptions, adjustment procedures, installation, parts list, mechanical disassembly, connector assembly, board layouts, block diagrams, and voltage diagrams. The plotter features an 8-inch color CRT display, multiple chart scales, and various navigation and alarm functions. It operates on a power supply of 11 to 40 VDC and has a power consumption of 40 W.
Specifications
- Display 8-inch color CRT display
- Chart scale 7 levels
- Plotting intervals 5 sec. ~60 min. or 0.01 nm ~9.99 nm (selectable)
- Number of track points 600 + 600 (temporary + memory)
- Number of waypoints 100
- Number of event marks 200 (in 3 colors)
- Navigating function Destination, Route, External
- Alarm functions Course-off, Course-in, Arrival, Anchor
- input data format NMEA0182 or NMEA0183
- Output data format NMEA0183
- NMEA0183 sentence format Input GLL, WPL, XTE ( means a wild card.) Output LCGLL, LCXTE, LCAAM, LCVTG, LCBOD, LCWPL
- Power supply requirement 11~ 40 VDC
- Power consumption 40 W
- Usable temperature range 0°C ~+50°C; +32°F ~ + 122°F
- Weight 8.0 kg; 17.6 Ib
- Dimensions 250(W) x 250(H) x 276(D) mm; 9.8(W) x 9.8(H) x 10.9(D) in (Projection not included)
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
The source does not provide information on operation, modes, or basic usage steps for the marine plotter VP-21.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
DANGER! HIGH VOLTAGE
High voltages of up to hundreds of thousands of volts are used in this unit. BEWARE of high voltage when removing the outer cover of the unit. When working on the interior, avoid direct contact with the high voltage circuitry especially on the CRT unit. Electric shock of 1000 volts or more may cause electrocution and death; and, even an electric shock of only 100 volts may be fatal.
HIGH VOLTAGE WARNING FIRST AID IN CASE OF ELECTRIC SHOCK
A stable foothold is essential to prevent more extensive or additional injuries. When injured by electric shock, disinfect the burn completely and begin first aid as soon as possible. To avoid electric shock, all adjustments should be made using an insulated turning tool.
REPAIR NOTE
1. Make sure a problem is internal before disassembling the unit.
2. DO NOT open the unit until the unit is disconnected from the power source.
3. DO NOT force any of the variable components. Turn them slowly and smoothly.
4. DO NOT short any circuits or electronic parts. An insulated turning tool MUST be used for all adjustments.
5. DO NOT keep power ON for a long time when the unit is defective.
6. READ the instructions of the test equipment thoroughly before connecting equipment to the unit.
Download MANUAL Service manual (PDF – 8.2 MB)
Icom-vp-21-service MANUAL PDF: 8.2 MB. Provides technicians with troubleshooting, calibration, and assembly instructions.
- Brand: Icom-vp-21-service
- Model: MANUAL
- Type: Service manual
- File size: 8.2 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-vp-21-service Overview
The Icom-vp-21 is a versatile communication device designed for reliable and clear voice transmission in various professional and recreational settings. This model is widely used in marine, aviation, and outdoor activities where dependable two-way communication is essential. The Icom-vp-21 offers robust performance, durability, and ease of use, making it an ideal choice for users who require consistent connectivity in challenging environments.
Main Features and Specifications
- Frequency Range: VHF/UHF bands suitable for multiple communication channels
- Power Output: Adjustable transmission power for extended range and battery conservation
- Display: Clear LCD screen with channel and status indicators
- Battery Life: Long-lasting rechargeable battery with quick charge capability
- Durability: Water-resistant and shockproof housing for rugged use
- Audio Quality: Noise-cancelling microphone and speaker for clear communication
- Memory Channels: Programmable channels for quick access to frequently used frequencies
Basic Usage and Operation Tips
To operate the Icom-vp-21, first ensure the battery is fully charged. Turn on the device by pressing the power button and select the desired channel using the channel selector knob. Adjust the volume to a comfortable level. Press and hold the push-to-talk (PTT) button to transmit your message, then release it to listen. Use the scan function to monitor multiple channels efficiently. Regularly check the antenna connection to maintain optimal signal strength.
Troubleshooting and Maintenance
If you experience poor audio quality or signal loss, verify that the antenna is securely connected and free from damage. Ensure the battery is adequately charged, and replace it if performance deteriorates. Clean the device exterior with a soft, dry cloth to avoid dust buildup. Avoid exposing the unit to extreme temperatures or moisture beyond its rated limits. For persistent issues, consult the detailed troubleshooting section in the service manual.
Safety Reminder
Always follow local regulations regarding radio frequency use. Avoid transmitting near explosive environments or flammable materials. Do not disassemble the device unless you are qualified to do so, as improper handling can cause damage or injury. Use only manufacturer-approved accessories and batteries to ensure safe operation. Keep the device out of reach of children to prevent accidental misuse.