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JRC JMA-3910-4 User Manual

JRC JMA-3910-4
256 pages
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Table of Contents

Questions and Answers:

JRC JMA-3910-4 Specifications

General IconGeneral
Operating Temperature-15°C to +55°C
TypeX-Band Radar
Frequency9410 ± 30 MHz
Antenna Size4 ft
Antenna Rotation Speed24 rpm
IP RatingDisplay Unit: IPX2

Summary

Before Operation

Cautions During Operation

WARNING: High Voltage and Rotating Parts

Warns about touching high voltage areas, rotating scanner units, and electric wave exposure.

CAUTION: Radar as Navigation Aid

Advises using radar solely as a navigation aid, making final decisions independently.

Precautions Before Operation

High Voltage Safety Precautions

Details safety measures for working with high voltage components, including power off and grounding.

Electric Shock First Aid Procedures

Provides instructions on immediate actions to take if someone receives an electric shock.

First Aid Treatments

General First Aid Steps

Outlines initial steps for providing first aid to an electric shock victim, including calling for help.

Artificial Respiration: Pulse Present, Breathing Stopped

Details artificial respiration procedures when pulse is present but breathing has stopped.

Artificial Respiration: Pulse and Breathing Stopped

Provides guidance on cardiac massage and artificial respiration when both pulse and breathing have ceased.

2. Control Panel and Menu Composition

3. Basic Operation

3.2 Preparation for Operation

Covers essential pre-operation settings like tuning, sensitivity, and display adjustments.

3.3 Detailed Basic Operations

Explains core functions like trackball usage, EBL, range scales, and alarm settings.

3.4 Using Function Key [FUNC]

Describes how to use function keys to select and customize radar operating modes.

3.6 Own Ship Track Display

Covers changing track color, selecting storing intervals, and deleting tracks by color.

4. Measurement

4.1 Measurement with Trackball

Explains how to use the trackball to measure target range and bearing.

4.3 Measurement with Electronic Cursor and Variable Range Marker

Details using EBL and VRM for precise measurement of bearing and range.

5. True and False Echoes on Display

6. Maintenance

7. Countermeasures for Trouble and Adjustment

7.2 Failure Check and Fuse Information

Lists common failures, probable causes, and fuse specifications for troubleshooting.

7.3 Troubleshooting Common Issues

Addresses issues from cable contacts, lists spare parts, and refers to repair information.

7.4 Replacement of Major Parts

Provides detailed instructions for replacing key components like magnetrons and limiters.

8. After-Sales Service

Radar Failure Checklist

A checklist to diagnose and report potential radar failures before requesting repair.

10. Specification

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