Furuno gp-33 Guía Del Usuario

8.  MAINTENANCE, TROUBLESHOOTING

5. Press each key one by one.

The corresponded mark on the display turns red if the key is functioning properly.

6. Press the MENU/ZOOM key three times to close the test screen.
7. Select [LCD Test], and press the ENT key.

Each press of this key changes the LCD pattern in the sequence shown below.
Red

→Green→Blue→Red (gradation)→Green (gradation)→Blue (grada-

tion)

→White→Black→White/Black (gradation)→return to System screen.

Note: To cancel the test, press the MENU/ZOOM key.

8. Press the MENU/ZOOM key twice to close the menu.

You can clear GPS data, menu settings* and all backup data* to start afresh (*other 
than Language, Units and TD).

1. Press the MENU/ZOOM key twice to show the menu.
2. Select [System], and press the ENT key.
3. Select [Reset], and press the ENT key.

4. Select [GPS], [Menu Settings] or [Factory Reset], and press the ENT key.
5. Select [On], and press the ENT key.
6. Press W to select [Yes], and press the ENT key.

[Menu Settings], [Factory Reset]: Go to Initial Setting screen. Select the language, 
then press ENT and MENU/ZOOM key in order.

1

ROM, RAM test

Correct: “OK”, Wrong: “NG”

2

Data3 test

“-” (This test is used at factory only.)

3

GPS test

Correct: “OK”, Wrong: “NG”

4

Program version No.

The program version No. which is currently used ap-
pears.

5

CNT

Number of test repetition.