Raymarine ST40 - Page 20

Chapter 2: Maintenance and Fault Finding
11
Action
Ensure that reading stabilises when clear of disturbed water,
e.g. boat wakes, propeller wash etc.
Action
Check fuse/circuit breaker.
Check power supply.
Check SeaTalk cabling and
connector security.
BIDATA
D4738-2
ST40
Action
Check the condition of the depth transducer cable and the
security of the connections.
Could also be due to weed growing on the transducer face.
No depth information
DD
DD
Depth reading
flashes when
under way
Display blank
D4740-2
OR
1 minute
1 minute
BIDATAST40
BIDATAST40
BIDATAST40
BIDATAST40
OR
D4739-2
BIDATAST40
BIDATAST40
159_2c02.p65 01/05/01, 15:1411