Start Up Displays

Failure to pass the software checksum test indicates that the software memory is corrupted. The GPS

board will not continue operation when the following screen is displayed.

Software Test

Failed:

Contact IIMorrow

Non-Volatile RAM Tests

The non-volatile RAM validation code does the following checks every time the unit is powered up. Any tests which detect a failure reset the failed values. Generally, the non-volatile RAM test pages are not displayed, since in most cases the tests pass.

User Database Memory Failure

User waypoint checksums exist for each User waypoint. If the checksums do not match, the User waypoint is deleted. If this occurs, any flight plan which references this user waypoint is also deleted.

In addition, User comment checksums exist for each user-defined waypoint comment. The comment is deleted if the calculated checksum does not match the saved checksum. The following message is then displayed until you press ENTER.

User Database

Memory Failure

Press ENTER

Flight plan checksums exist for all flight plan information. If a particular flight plan checksum does not match the calculated checksum, the flight plan is deleted, or in the case of the Active Flight Plan, the plan is reinitialized. The following message is then displayed until you press ENTER.

Flight Plan

Memory Failure

Press ENTER

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