98
Symptoms
Causes
Remedy
Bottom or fish can
not be displayed at
all.
Image does not
sometimes appear.
Bottom or fish
school is not
displayed well.
Contact of transducer connector
is bad.
Transducer is not immersed into
water well.
In case of installing the transducer
inside the hull, it is not immersed into
water because internal liquid
becomes less.
Transducer is not immersed into
water well.
When installation of transducer
is bad, air bubbles wind easily at
high speed sailing. It results in
no display.
Influence of air bubble when the boat
runs across the wakes of another
boat.
Too low sensitivity.
Rubbish, weed or etc. attached on
the surface of transducer.
In case of installing the transducer
inside the hull,
boat’s bottom or liquid is dirty.
Connect surely. Clean the surface of
transducer and remove the rust, stain,
etc.
Replace in case of corrosion.
・
Replace the transducer cable.
・
Replace the connector of unit. (Ask to
repair.)
Install the transducer where it is
always immersed under the
waterline.
Supplement liquid so that
transducer can be immersed into
water.
Install the transducer where it is
always immersed under the waterline.
Check the installation of
transducer.
Move the own boat or wait air
bubbles disappear.
Increase the sensitivity.
Or set to Auto Gain (automatic
sensitivity control).
Remove the attachment well.
Remove the stain from boat’s
bottom. Replace the liquid.
Even weak reflected color is
erased by "CLUTTER"
Adjust Clutter to show weak reflected
color. (Refer to [TO SET CLUTTER]
→
page 74)
<
Faulty of transducer
>
Please check the followings. If you find abnormal symptom,
please replace.
1. If you hear the sound like “Bo Bo” from surface of transducer, it is normal.
2. When you rub the surface of transducer after setting sensitivity and depth
to maximum, if dots like rain appears on the screen, it is normal.
As the reflected echoes are very weak at the below described
place, the image low sensitivity may be shown. But it is not trouble.
where there are
many sludge.
where there are
many sea weeds.
where there are
many mud of
rubbish.
where the water
is whirled by
rapid current.
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