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9–1
9. MAINTENANCE &
TROUBLESHOOTING
9.1 Clearing the Memory
The DD-80 has two memories: GPS memory
and plotter memory.
Clearing the plotter memory
The plotter memory holds plotted track and
mark data. When you clear the plotter
memory, all track and marks are cleared and
all corresponding defaults settings are re-
stored.
1) Press [MENU ESC] [9] and [9] to dis-
play the CLEAR MEMORY menu.
Clear Plotter No Yes
Clear GPS No Yes
Clear All No Yes
CLEAR MEMORY
Clear GPS
MENU : Escape
: Select
No
Figure 9-1 CLEAR MEMORY menu
2) Press ▲ or ▼ to select Clear Plotter.
3) Press s to select Yes. The following mes-
sage appears.
Clear tracks and marks
Are you sure to clear ?
ENT:Yes MENU:No
Figure 9-2
4) Press the [NU/CU ENT] key.
Clearing the GPS memory
The GPS memory stores GPS information,
including the Almanac. When you clear the
GPS memory, all GPS information is erased.
1) Press [MENU ESC] [9] and [9] to dis-
play the CLEAR MEMORY menu.
2) Press ▲ or ▼ to select Clear GPS.
3) Press s to select Yes. The following mes-
sage appears.
Setting for cold start
Are you sure to clear ?
ENT:Yes MENU:No
Figure 9-3
4) Press the [NU/CU ENT] key.
Clearing GPS and plotter memories
To clear both GPS and plotter memories;
1) Press [MENU ESC] [9] and [9] to dis-
play the CLEAR MEMORY menu.
2) Press ▲ or ▼ to select Clear All.
3) Press s to select Yes. The message shown
in Figure 9-4 appears.
Setting for default
Are you sure to clear ?
ENT:Yes MENU:No
Figure 9-4
4) Press the [NU/CU ENT] key.
Note: The equipment may lock after clearing
GPS and plotter memories. Reapply power to
the equipment to restore normal operation.