Problem Solving; Common Problems And Their Solutions - Raymarine E66008 Owner's Handbook Manual

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• In order to minimize these effects and enable you to get the best
• Always report any EMC-related problem to your nearest Rayma-
• In some installations, it may not be possible to prevent the equip-

Problem Solving

Common Problems and Their Solutions

Table 3-1: Common Transducer Problems
Problem
Fishfinder display
"freezes"
Fishfinder does
not see bottom or
fish
Fishfinder does
not display fish
Fishfinder is unre-
liable at high boat
speeds
Fishfinder displays
a lot of back-
ground noise
Fishfinder speed
or log readings are
wrong
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possible performance from your Raymarine equipment, guide-
lines are given in the installation instructions, to enable you to
ensure minimum interaction between different items of equip-
ment, i.e., ensure optimum Electromagnetic Compatibility
(EMC).
rine dealer. We use such information to improve our quality stan-
dards.
ment from being affected by external influences. In general this
will not damage the equipment but it can lead to spurious resetting
action, or momentarily may result in faulty operation.
Correction
Check the transducer cable for damage. If dam-
aged, the cable and transducer must be replaced
as a unit.
1. If you have a transom-mount transducer, check
that the transducer hasn't kicked-up on hitting an
object.
2. Check that the transducer is within 10° of verti-
cal.
3. Check that the transducer face is not covered or
fouled. If necessary clean the transducer.
Ensure the transducer is within 10 ° of vertical.
Turbulence around the transducer may be confus-
ing the unit.
Check that the transducer is mounted correctly
and is clean.
Check that the transducer paddle wheel is clean.
Transducers for Fishfinders