10. MAINTENANCE, TROUBLESHOOTING
10-5
10.7 Warning
Messages
The table below shows the warning messages which may appear on the display.
All warning messages are accompanied by an audio alarm, which you may
silence with the [R/B AUDIO] key.
Table 10-3 Error messages
Message Meaning,
Remedy
Power supply
OVERVOLTAGE!!
RETRACT TRANSDUCER AND TURN OFF
POWER. CHECK SHIP’S MAINS VOLTAGE.
PRESS [R/B] KEY TO TURN OFF ALARM.
This message blinks at the screen center and
the buzzer sounds when the voltage supplied to
the transceiver unit is excessive. Transmission
is stopped if the equipment is transmitting, to
protect the transducer and transmitter power
section from damage. Silence the buzzer with
the [R/B AUDIO] key, retract the transducer and
turn off the power. Have a
qualified technician
check input voltage.
Transceiver unit
NO RESPONSE FROM TRANSCEIVER UNIT.
TURN OFF AND ON POWER AGAIN, OR
CHECK POWER LINE TO TRANSCEIVER
UNIT. PRESS [R/B] KEY TO TURN OFF
ALARM.
This message blinks at the screen center and
the buzzer sounds when there is no reply from
the transceiver unit. Press the [R/B AUDIO] key
to turn off the buzzer. Have a
qualified
technician
check the set.
Hull unit, transducer
TRANSDUCER NOT RETRACTED!!
CUT OFF POWER LINE TO PROCESSOR,
POWER SUPPLY AND HULL UNIT. PRESS
[R/B] KEY TO TURN OFF ALARM.
This message blinks at the screen center, the
buzzer sounds and the LEDs above keys blink
if the transducer is not raised within 30 seconds
for 1200 mm stroke or 40 seconds for 1600 mm
stroke of pressing the [
↑]
key. Press the [R/B
AUDIO] key to silence the buzzer. The reason
may be the transducer is tangled in the net or
its shaft is bent. Try raising it from the hull unit
as shown in paragraph 10.11.
WARNING!!
TRANSDUCER IS KEPT AT WRONG
POSITION. SET BACK TRANSDUCER
POSITION TO NORMAL BY USING
↑
OR
↓
KEY. PRESS [R/B] KEY TO TURN OFF ALARM.
This message blinks at the screen center and
the buzzer sounds when the transducer is
knocked out of position in any aspect of its
operation. Try to return the transducer to its
normal position by operating the [
↑]
or [
↓]
key
and silence the buzzer with the [R/B AUDIO]
key.
WARNING!!
TRANSDUCER IS KEPT EXTENDED. MAX
ALLOWABLE SPEED FOR EXTENDED
TRANSDUCER IS 18 KT. PRESS [R/B] KEY TO
TURN OFF ALARM.
This message blinks at the screen center and
the buzzer sounds when the transducer is
extended and ship’s speed, input by external
equipment, exceeds 18 kt for 1200 mm stroke
or 15 kt for 1600 mm stroke. Silence the buzzer
with the [R/B AUDIO] key and lower ship’s
speed.
WARNING!!
MAX ALLOWABLE SPEED DURING
RAISING/LOWERING TRANSDUCER IS 15 KT.
PRESS [R/B] KEY TO TURN OFF ALARM.
This message blinks at the screen center and
the buzzer sounds when the transducer is
raised/lowered and ship’s speed, input by
external equipment, exceeds 15 kt for 1200 mm
stroke or 12 kt for 1600 mm stroke. Silence the
buzzer with the [R/B AUDIO] key and lower
ship’s speed.
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