Changing the Fuse in the Power Cable
1 Open the fuse housing .
2 Twist and pull the fuse to remove it .
3 Insert a new 3 A fast-blow fuse.
4 Close the fuse housing.
My device will not acquire GPS signals
If the device is not acquiring satellite signals, there could be a few causes. If the device has moved a large
distance since the last time it has acquired satellites or has been turned off for longer than a few weeks or
months, the device may not be able to acquire the satellites correctly.
• Ensure the device is using the latest software. If not, update the device software (
).
My sonar does not work
• Push the transducer cable all the way into the back of the device.
Even if the cable seems to be connected, you should push firmly so that it is fully seated.
• Press , and ensure sonar is enabled.
• Select the correct transducer type (
Selecting the Transducer Type, page 11
).
My device is not creating waypoints in the correct location
You can manually enter a waypoint location to transfer and share data from one device to the next. If you have
manually entered a waypoint using coordinates, and the location of the point does not appear where the point
should be, the map datum and position format of the device may not match the map datum and position
format originally used to mark the waypoint.
Position format is the way in which the GPS receiver's position appears on the screen. This is commonly
displayed as latitude/longitude in degrees and minutes, with options for degrees, minutes and second, degrees
only, or one of several grid formats.
Map datum is a math model which depicts a part of the surface of the earth. Latitude and longitude lines on a
paper map are referenced to a specific map datum.
1 Find out which map datum and position format was used when the original waypoint was created.
If the original waypoint was taken from a map, there should be a legend on the map that lists the map datum
and position format used to create that map. Most often this is found near the map key.
2 Select Settings > Units.
3 Select the correct map datum and position format settings.
4 Create the waypoint again.
My device does not display the correct time
Time is set by GPS position and time zone setting.
1 Select Settings > Units > Time Zone.
2 Ensure the device has a GPS fix.
Appendix
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