Furuno GP-3500F - Manual (Page 229)

12. MAINTENANCE & TROUBLESHOOTING
12-11
12.8 Cold Start
Cold start is automatically executed at initial power application or when the GPS
memory is cleared. This is done to acquire the Almanac to receive a GPS
satellite. You can also do the cold start manually when the Almanac is too old to
acquire a satellite; for example, when the equipment has not been used for one
year or more. Manually cold starting the receiver erases the existing Almanac to
receive the current one.
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 [5] key to show the following window.
BEGIN COLD START
TO CLEAR GPS MEMORY.
ARE YOU SURE?
YES ... PRESS KNOB
NO ... PRESS CLEAR KEY
5. Press the [ENTER] knob to begin the cold start or the [CLEAR] key to
escape. Cold start takes about 90 seconds to complete.
6. Press the [MENU] key several times to close the menu.
The Almanac description is shown on the next page.