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Furuno NavNet TZtouch3 Series User Manual

Furuno NavNet TZtouch3 Series
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16. MAINTENANCE, TROUBLESHOOTING
16-5
16.4.4 Fish finder troubleshooting
Problem Remedy
You selected a fish finder dis-
play from the Home screen, but
no picture appears.
Check that the transducer cable is tightly fastened.
Check that the fish finder source is correctly selected.
Check if the fish finder is correctly connected.
Check if [Picture Advance] in the [Fish Finder] menu is set to
[Stop].
Marks and characters appear,
but no picture appears.
Check that the transducer cable is tightly fastened.
Check if [Picture Advance] in the [Fish Finder] menu is set to
[Stop].
Picture appears but zero line
does not appear.
The picture is shifted. Drag the picture up or down to show the
zero line.
Check if the draft setting ([Settings][Fish Finder][Transduc-
er Draft]) is zero (0) or higher.
The picture sensitivity is too
low.
If you are in the manual mode, check the gain setting.
Check the transducer face for marine life and air bubbles.
Bottom is too soft to return an acceptable echo.
The depth indication does not
appear.
Adjust the bottom level.
Noise or interference shows on
the display.
Make sure the transducer cable is not near the engine.
Check the ground for tight connection, corrosion.
Check if another fish finder near your boat has the same fre-
quency as your fish finder.
Try to reject the interference with [Interference Rejection] in the
[Fish Finder] menu.

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Furuno NavNet TZtouch3 Series Specifications

General IconGeneral
BrandFuruno
ModelNavNet TZtouch3 Series
CategoryMonitor
LanguageEnglish

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