Furuno Felcom 250 Service Manual page 288

3. If you click [Execute], the confirmation messages for "Executing Selftest" shown
below will be displayed. Click OK, and the Selftest will be executed.
4. Each test takes approx. 5 minutes. While the test is in process, the following
message will be displayed; "During execution of ADE (BDE) selftest."
5. When the test is completed, the test results and the message "Selftest done" is
displayed in the ADE (BDE) selftest report.
ADE Selftest
10-20
10.5 Selftest
BDE Selftest