Furuno GP-3500 - Manual (Page 179)

11. MAINTENANCE & TROUBLESHOOTING
11-9
11.7 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 clearing, “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” appear
on the startup test screen. These mean no problem.
7. Press any key twice.