User's Manual

Page 16
DIAGNOSTIC INDICATIONS SPECIAL
MODES
Event
Self-test
button
pressed and
held
Self-test
completed
During operation Protocol
Programming
Red Light Off Flashes 3
times
Only flashes
for 2 seconds
every 50
seconds
Flashes every
2.5 seconds,
but no long (2
second) flash
- Flashes
continually.
Green
Light
Off Off - - Does not flash -
Buzzer Off Off - - - -
Meaning
No power to
PLB
Self-test
failure
No 121.5MHz
signal
No 406 MHz
signal
GPS has not
been able to
acquire a fix
since switch-
on
Programming
mode.
Action
to be
taken
Check battery
pack is
secure.
Replace
battery pack.
Return unit to
dealer if
problem
persists.
Do not use.
Return unit
to dealer.
None.
Unit is still
broadcasting
406MHz
signal.
None.
Unit is still
broadcasting
121.5MHz
signal.
If possible,
make sure
GPS view of
the sky is not
impaired.
Flashing red
light shows
status of
121.5 & 406
MHz
transmissions.
Programming
can only be
carried out by
an authorised
dealer using
special
equipment.