Furuno GP-3500F - Manual (Page 162)

10. RECORDING & PLAYING BACK DATA
10-10
10.3.2 Backup to internal memory
1. Press the [MENU] key to show the main menu.
2. Press the [3] key to show the MEMORY CARD OPERATIONS & DATA
TRANSFER menu.
3. Press the [6] key to show the AUTO BACKUP menu.
4. Rotate the [ENTER] knob to select AUTO BACKUP TO INT. MEMORY.
5. Press the [1] key to select “1. YES.”
6. Rotate the [ENTER] knob to choose SELECT BLOCK OF INT. MEMORY.
7. Press the [1] or [2] key to select the memory block where to save backup
data.
8. Press the [MENU] key several times to close the menu.
Whenever turning the power on, data is automatically stored in the block
selected at step 7.
Note: When this setting is done, the backup starts automatically after the caution
screen at the power on. The message “NOW DOING AUTO BACKUP.
WAIT FOR A WHILE.” appears while the backup.