Sperry Marine NAVIKNOT 600 SD, Operation, Installation And Service Manual

Page: 87 / 256

NAVIKNOT 600 SD 056353/J
Alert Codes and Messages 3-29
035 A GPS INIT
ERROR Initialisation of
antenna failed. Restart system
050 A SRD TIMEOUT Transducer pro-
tocol detection
failed Check that the pre-
amplifier is operat-
ing;
check that protocol
is set to NMEA;
check cabling
between preampli-
fier and NAVIKNOT
electronics unit;
check cabling
between trans-
ducer and pream-
plifier;
check transducer
for proper opera-
tion.
050 A PREAMP D.
TIMEOUT Data lost from
preamplifier D
(protocol detec-
tion succeeded
and valid data
was received
previously)
051 A SCAN SENSOR Transducer pro-
tocol detection
running (NAVI-
KNOT electron-
ics unit analyses
incoming data)
Error is cleared
once transducer
protocol has been
determined. If error
persists, check pre-
amplifier D for
proper operation.
052 A PREAMP D.
BAD SIGNAL Speed data lost
while communi-
cation between
preamplifier D
and NAVIKNOT
electronics unit
still established Check doppler
transducer and sig-
nal quality
071 A EXT HDG
TIMEOUT No valid exter-
nal heading
data received Check that external
source produces
the required data
and that it is not
marked invalid.
072 A EXT ROT TIME-
OUT No valid exter-
nal rate of turn
data received
074 W AUTO ROT
SWITCHOVER No valid exter-
nal rate of turn
data received;
switch over to
GPS. Check that external
source produces
the required data
and that it is not
marked invalid.
075 W AUTO HDG
SWITCHOVER
Alert
ID Alert
Type Alert Message Cause Corrective Action