3. MAINTENANCE & TROUBLESHOOTING

3.4Diagnostics

The memory test checks ROM, RAM, data port, battery, keyboard and LCD for proper operation and displays program version numbers.

1.Press the MENU/ESC key to open the main menu.

2.Press ▼ to choose Service, and then press the ENT key.

3.Press ▲ or ▼ to choose Test, and then press the ENT key. The message “Start test?” appears.

4.Press ◄ to choose “Yes”, and then press the ENT key.

Memory Test

Program No

: 0850193-01.*

Boot

: 0850192-01.*

ROM

: OK

SRAM

: OK

DRAM

: OK

CPU RAM

: OK

EEPROM

: OK

Battery

: OK (3.2V)

Hit any key.

*: Program version no.

Memory test

For any NG (No Good), contact your dealer.

5.When the message “Hit any key.” appears at the bottom of screen, press any key (except key) to show the key test screen.

Key Test

If there is no operation for 10 s, the screen changes.

Key test

6.Press each key (except key) one by one.

A key is functioning properly if its on-screen location fills in black when the key is pressed.

7.After all keys have been tested or no key is pressed after 10 seconds, the equipment starts the LCD test by showing the white and black display (level 0 to 9).

3-5

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Furuno NX-700A manual Diagnostics, Memory test, Key test

NX-700A specifications

The Furuno NX-700A is an advanced navigation system designed specifically for professional mariners and commercial vessels. Known for its robust performance and precision, it integrates state-of-the-art technology to enhance safety and efficiency at sea. One of the most notable features of the NX-700A is its dual-channel frequency system, which allows for improved target detection and tracking capabilities. This dual-channel operation ensures that the system can differentiate between multiple targets, reducing the risk of collisions and enhancing situational awareness.

Another significant aspect of the NX-700A is its high-resolution display. The system is equipped with a large LCD screen that provides clear and detailed graphical representations of surrounding waters, including navigational aids and potential hazards. The intuitive interface allows for easy operation even in challenging conditions, ensuring that crews can concentrate on their primary task: safe navigation.

Further enhancing the usability of the NX-700A is its advanced GPS functionality. The system employs multi-GNSS (Global Navigation Satellite System) technology, enabling it to obtain accurate position fixes from various satellite constellations, including GPS, GLONASS, and BeiDou. This capability ensures that mariners receive reliable positioning data regardless of their location, which is crucial during navigation in remote areas.

The NX-700A also features robust connectivity options, including NMEA 2000 and NMEA 0183 support. This allows the system to interface seamlessly with other onboard equipment, such as autopilots, engine monitoring systems, and electronic chart plotters. Such integration enhances operational efficiency and aids in maintaining a central command point for navigation.

Marine safety is further bolstered with the NX-700A's built-in man-overboard function, which provides rapid and precise positioning information in emergency situations. The system can also store critical navigational data, which can be accessed quickly during emergencies, contributing to enhanced safety protocols on board.

In summary, the Furuno NX-700A is a sophisticated navigation solution that combines high-resolution displays, advanced GPS technology, dual-channel frequency systems, and robust connectivity. Whether used in fishing vessels, cargo ships, or pleasure yachts, the NX-700A stands out as a reliable tool for enhancing maritime safety and navigation efficiency. With its user-friendly interface and essential features, it embodies the modern requirements of marine navigation technology.