Failure to pass the software checksum test indicatesthat the software memory is corrupted. The GPSboard will not continue operation when thefollowing screen is displayed.Software TestFailed:Contact IIMorrowNon-Volatile RAM TestsThe non-volatile RAM validation code does thefollowing 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 notdisplayed, since in most cases the tests pass.User Database Memory FailureUser waypoint checksums exist for each Userwaypoint. If the checksums do not match, the Userwaypoint is deleted. If this occurs, any flight planwhich references this user waypoint is also deleted.In addition, User comment checksums exist for eachuser-defined waypoint comment. The comment isdeleted if the calculated checksum does not match thesaved checksum. The following message is thendisplayed until you press ENTER.User DatabaseMemory FailurePress ENTERFlight plan checksums exist for all flight planinformation. If a particular flight plan checksum doesnot match the calculated checksum, the flight plan isdeleted, or in the case of the Active Flight Plan, theplan is reinitialized. The following message is thendisplayed until you press ENTER.Flight PlanMemory FailurePress ENTER11-3Start Up Displays
