Furuno CH-37 - Manual (Page 81)

7-7
Transceiver unit error message
If the power is not supplied to the transceiver unit, the following
message appears on the screen and the buzzer sounds.
TRANSCEIVER
UNIT
POWER OFF
(CHECK FUSE ON TRANSCEIVER UNIT)
PRESS R/B KEY TO SILENCE ALARM
Figure 7-7 Transceiver unit error message
If this occurs, turn the power off and check the fuse as the
screen suggests.
Speed warning
Because the transducer may be damaged if it is kept lowered
when ship’s speed exceeds 15 knots (based on the speed rela-
tive to ground fed from nav sensor), the following message
appears and the buzzer sounds.
Press the R/B key to silence the buzzer and return to the nor-
mal sonar picture. Raises the transducer.
TRANSDUCER
REMAINS
LOWERED
(REDUCE SHIP’S SPEED AND PRESS ↑ KEY)
PRESS R/B KEY TO SILENCE ALARM
Figure 7-8 Speed warning