Furuno GP-3500F - Manual (Page 228)

12. MAINTENANCE & TROUBLESHOOTING
12-10
12.7 Clearing the Working Memory
The working memory can be cleared to restart operation with default settings.
All tracks, marks, waypoints and routes are deleted. Note that the cleared
memory cannot be restored.
1. Press the [MENU] key to show the main menu.
2. Press the [0] key to show the SYSTEM SETUP menu.
3. Press the [6] key to show the TEST & MEMORY CLEAR menu.
4. Press the [4] key to show the following window.
CLEAR ALL MEMORY INCL.
MARKS/TRKS/WPTS/RTES.
ARE YOU SURE?
YES ... PRESS KNOB
NO ... PRESS CLEAR KEY.
5. Press the [ENTER] knob to clear the memory.
The equipment restarts automatically, and then the following window appears.
START SIMULATION MODE?
YES ... PRESS KNOB
NO ... PRESS CLEAR KEY
Note: Press the [CLEAR] key to escape.
6. To start the simulation mode, press the [ENTER] knob. (For normal operation,
press the [CLEAR] key.)
Soon after the memory is cleared, “BACK DATA: NG” and the message
“SYSTEM HAS FAILED START UP TEST. PLEASE CONTACT A LOCAL
FURUNO REPRESENTATIVE FOR REPAIR. PRESS ANY KEY TO CONTINUE”
appears on the startup test screen. This is normal; it is not a sign of
malfunctions.
7. Press any key twice to finish.