7. MAINTENANCE, TROUBLESHOOTING

7.4.4Sounder

Requires Network Sounder ETR-6/10N/30N.

Sounder troubleshooting

If…

But…

 

Then…

you selected a sounder

picture does not appear

check that the network

display with the DISP key

 

 

sounder’s signal cable is firmly

 

 

 

fastened.

 

 

Check that sounder source is

 

 

 

correct.

 

 

check that the network sounder

 

 

 

is plugged in. The LED on the

 

 

 

network sounder should flash

 

 

 

every second.

 

 

 

 

marks and characters

picture does not appear

check for loosened transducer

appear

 

 

connector.

the picture appears

zero line does not appear

the picture is shifted. Confirm

 

 

 

shift setting.

 

 

 

 

picture sensitivity is too low

check gain setting, if using

 

 

 

manual operation.

 

 

marine life or air bubbles may

 

 

 

be clinging to transducer face.

 

 

bottom may be too soft to return

 

 

 

a suitable echo.

 

 

 

 

the depth indication is not

adjust gain and range to display

displayed

 

 

the bottom echo (in reddish

 

 

 

brown), if you are using the

 

 

 

manual sounder mode.

 

 

 

 

noise or interference shows

check to be sure the transducer

on the display

 

 

cable is not near ship’s engine.

 

 

check the ground.

 

 

other video sounders of the

 

 

 

same frequency as yours may

 

 

 

be operating near you.

 

 

 

 

the water temperature graph

data is wrong

check that sensor cable is tightly

appears

 

 

fastened.

 

 

 

 

7-6

offered by Busse-Yachtshop.de

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Furuno FURUNO MARINE RADAR, 1953C-BB, 1943C-BB, 1933C-BB, 1823C-BB, 1833C-BB manual Sounder troubleshooting