Furuno CH-37BB, Operator'S Manual

Page: 63 / 71

8. MAINTENANCE
8-5
8.8 Error Messages
8.8.1 Raise lower error message
If the power is not applied to the hull unit, the error
message appears on the screen and the buzzer
sounds.
If this occurs, turn the power off and check the breaker
and fuse the screen suggests.
8.8.2 Transceiver unit error message
If the power is not supplied to the transceiver unit, the
error message appears on the screen and the buzzer
sounds.
If this occurs, turn the power off and check the fuse as
the screen suggests.
8.8.3 Speed warning
Because the transducer may be damaged if it is
kept lowered when ship’s speed exceeds 15
knots (based on the speed relative to ground fed
from nav sensor), the following message ap-
pears and the buzzer sounds.Press the R/B key
to silence the buzzer and return to the normal so-
nar picture. Raise the transducer.
8.8.4 Train error message
If something is wrong with the train control circuit, the fol-
lowing message appears and the unit stops operating.
Turn the PWR switch off and contact your service agent
at your earliest convenience.
8.8.5 Tilt error message
If something is wrong with the tilt control circuit, the follow-
ing message appears and the unit stops operating. Turn
the PWR switch off and contact your service agent at your
earliest convenience.
HULL UNIT
POWER OFF
(CHECK BREAKER AND FUSE)
PRESS R/B KEY TO SILENCE ALARM
TRANSCEIVER
UNIT
POWER OFF
(CHECK FUSE ON TRANSCEIVER UNIT)
PRESS R/B KEY TO SILENCE ALARM
TRANSDUCER
REMAINS
LOWERED
(REDUCE SHIP’ S SPEED AND PRESS ↑ KEY)
PRESS R/B KEY TO SILENCE ALARM
TRAIN NG
TILT NG