Furuno NX-700A/B User Manual download pdf (Page 45)

3. MAINTENANCE & TROUBLESHOOTING

3-5

3.4 Diagnostics

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 : 0850196-****

Boot : 0850192-****

ROM : OK

SRAM : OK

DRAM : OK

CPU RAM : OK

EEPROM : OK

Battery : OK (3.2V)

[PRINT] Print

[ENT] Continue

*: Program version no.

Memory test

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

5. When the message “[ENT] Continue” appears at the bottom of screen, press

ENT 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).

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Furuno NX-700A/B User Manual Page 45