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10.2 Instrument troubleshooting
Fault
Cause
Action
Blank display.
No power supply.
• Check fuse / circuit breaker.
• Check power supply.
• Check SeaTalk / SeaTalk
ng
cabling and connector
security.
SeaTalk / SeaTalk
ng
information not being transferred
between instruments.
SeaTalk / SeaTalk
ng
cabling or connector fault.
• Check security of SeaTalk / SeaTalk
ng
connections
between units.
• Check condition of SeaTalk / SeaTalk
ng
cables.
• Isolate faulty unit by disconnecting units one by
one.
A group of SeaTalk / SeaTalk
ng
units not working.
SeaTalk / SeaTalk
ng
cabling or connector fault.
• Check the security of SeaTalk / SeaTalk
ng
connectors between functioning and
non-functioning units.
• Check the condition of SeaTalk / SeaTalk
ng
cable
between functioning and non-functioning units.
LAST
flashing or dashes displayed continuously
(depth greater than 3 feet).
Transducer cable or connector fault.
• Check condition of the transducer cable(s) and the
security of the connections.
LAST
flashes when under way.
Aerated water due to vessel wakes, propeller wash
etc.
• Ensure reading stabilizes when clear of disturbed
water.
Troubleshooting
53
Summary of Contents for E70058
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Page 45: ...Chapter 8 Using alarms Chapter contents 8 1 Alarms on page 46 Using alarms 45 ...
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