Furuno GD-3300, GP-3300 manual Keyboard test, 12-3, To escape from the test, press any key

4.Press the [1] key to select MEMORY•I/O PORT. Then, the unit checks each memory circuit and I/O port one by one, displaying the results after each checking each item.

	9-9-1 MEMORY TEST
Asterisk marks
	*ROM	= OK
item currently	SRAM	= OK
being tested.
	VRAM	= OK
	MEMORY CARD LOWERUPPER	= OKOK *1
	INTERNAL BATTERY	= OK
	CARD BATTERY LOWERUPPER	= OKOK
	SIO (DATA IN/OUT)	= *2
	SIO (AUTOPILOT)	= *2
	GPS	= OK

PRESS ANY KEY TO EXIT.

1* "NG" displayed when chart card is inserted.

*2 Special test connectors required to check "SIO."

Figure 12-3 Sample memory circuit, I/O port test results display

5. To escape from the test, press any key.

Keyboard test

1.Press [MENU], [9], [9] and [2] to select KEYBOARD TEST. The display should look like Figure 12-4.

9-9-2 KEYBOARD TEST

PRESS KEYS ONE BY ONE TO TEST.

PRESS CLR 3 TIMES TO RETURN TO MAIN MENU.

Figure 12-4 Keyboard test display

12-3