JRC JFC-7050 Operation Manual page 6

Operation Notes <For operators>
Observe the following operation notes, otherwise the system failure or deterioration can result. And
periodical inspection and maintenance are required for keeping the system in an optimum condition.
Backup important data.
Use correct transducer
only.
Check transducer
Connection before
power on
Always clean
the transducer
Transducer must be
installed by authorized
personnel.
WARNING
The waypoint and other registered data may become unreadable by
unexpected failure. We recommend recording this data separately.
If you use incorrect transducer, the transmitter circuit may be
damaged due to a matching error. Consult is for system information.
Do not turn the power switch ON if the transducer is disconnected or
if it is not inserted into the water. If done, the transducer or
transmitter circuit may be damaged.
Since transducer performance can drop due to accumulated bottom
growth, keep the transducer clean. Never paint transducer surface.
Consult us for transducer installation by authorized personnel.
This product is designed to assist a navigation.
When you are sailing, use the certified chart from the Government or
IMO.
- 3 -