Furuno VR-7000 Operator's Manual page 31

Normal self Do the self test as follows:
test Note: Hold the capsule by its handle during the test. This keeps foreign
material away from the silicone grease on the capsule, and keeps the an-
tenna of the capsule away from metallic objects or human body.
1) Remove the capsule from the bracket.
2) Push and hold the lever in "TEST" position for 15 seconds.
3) The lamp flashes once if operation is normal. Multiple flashes indicate
error. See the table below for number of flashes and error.
When the result of the self test is not "OK", change the location and re-
try the self test. If not resolved, contact your dealer.
4) Release the lever and set it to the "READY" position. Check if there is
sufficient silicone grease at the bottom of the capsule and that the
grease is free of foreign material. If there is no grease or the grease
contains foreign material, wipe off the grease and then reapply it.
Maintenance point
Number of flashes
OK.
Low power on 406 MHz transmitter.
Low battery voltage.
Low power on 121.5 MHz transmitter.
Frequency error on 406 MHz transmitter.
Frequency error on 121.5 MHz transmitter.
EPIRB module is not programmed or
programming is not completed.
22
Operate this lever.
Result
2. MAINTENANCE
Result