Top 20 Eagle Fishmark 320 Portable Fishfinder Questions & Answers

Question edited for clarity. Question moved from Eagle Televisions. Phone and ask them if you can send it in. Very often your local marine electronics shop will have a preferred technician. https://www.manualslib.com/manual/41681/Eagle-Fishmark-320.html?page=90 ..

try hitting the on and off button it should fix it that is your lite skle and britness

sounds to me you have a bad keyboard if so two things repair shop or time for a new one

Think of where the transducer is fitted on your boat . As turbulence is the only problem you need to worry about. It needs too be on the transom but in between the lower 2 chines

Hello! Do you have the PDF users guide for your unit? I'm looking at a copy in the troubleshooting section...I don't want to cover information you have already looked at or tried...Since I do not know if you have that manual I'll give you a few items to check...

Measure the battery at the units power connector...Must be at least 11 volts DC...In portable mode it uses 8 D cell batteries= 12 volts
Make certain the Transducer is securely connected...
Did you use the in-line fuse supplied with the unit?...
Try the Manual Depth Range...First turn off Auto Depth Range...From the sonar Page Hit MENU...Down-arrow to Auto Depth Range...Hit ENT...Hit Up-Arrow to Depth Range...Hit ENT..
And the Depth Scale Range appears...Up-Arrow or Down-Arrow to select a different depth range...Hit Exit...The minimum depth the unit can read is 5 feet...

If you do not have the PDF guide, here is the link...

http://www.eaglenav.com/upload/Eagle/Documents/Manuals/seafinder320df_0143-661_101602.pdf


Let me know how you make out....Guru....Saailer I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Try adjusting ur puck,and go into menu look for a shallow,fresh water setting.less than a 100ft put in shallow all other depths in fresh

Hi!

Yes you can!
Here's the link:
http://www.eaglenav.com/upload/Eagle/Documents/Manuals/seafinder320df_0143-661_101602.pdf

Hope this helps!

Connect the trasnducer on a SS plate bracket behind the transon of the boat.

You can download the user manual from this links.

http://www.eaglenav.com/upload/Eagle/Documents/Manuals/seafinder320df_0143-661_101602.pdf

http://www.retrevo.com/support/Eagle-320-manual/id/517ci954/t/2/

Same problem any ideas????

Hi,

You can download the complete instruction manual in PDF format by clicking this link.

For additional information, features and specifications, click here

• You'll require Adobe PDF Reader installed on your computer to view the manual. If it is not already installed on your computer, download it free from: http://get.adobe.com/reader/

Hope this solves your problem. Thanks for using FixYa.

Usually the simplest solution is a great place to start. Start by checking the supply, fuse, and power button. If this does not look like its getting you anywhere start at the power supply circuit inside the unit. Quite often a defective supply voltage or reverse polarization blows some of the capacitors and/or reverse protection diode on this board. Also ensure that the unit as a whole is off and not only the display. Try to listen for the "on" beep to start with. If that isn't there whip out your multimeter and check like above. Good luck.

I dont know what state your in but in minnesota call Fish Lectronics at 281-963-4375. or Lakesonic at 507-281-4445. Call if you need more

Double check you have a good connection from the transducer data cable to the back of the display unit and that the pins are not corroded or anything similar. If the temp has never worked at all, it may be because the transducer you are using doesnt have a temperature sensor onboard and you will need to get one that does have this feature. If it did work previously and you checked the pins/connection (as per above) then the transducer is faulty or has developed a fault. There is no real easy fix and it will most likely be far cheaper just to buy a new transducer than to have the current one repaired by Eagle. I think new trasnducers are about $60-$70.

The manual says to use a 3 amp fuse. If a 3 amp fuse is what it recommends then that would be what I would use, no more no less.

Here is a link to the wire gage selection chart that I drew up a copy of. I couldn't post a picture on here do to the size and dimension of the pictures.

Hope helped.

for FREE owner's manuals visit 'www.eaglesonar.com'
Eagle Electronics
P.O.Box 669
Catoosa, OK 74015

It seems most likely that your manual range has accidentally been set for 50' or less. Go into the menu and set to auto range. Here are the exact keystrokes as shown on PAGE 51 of your manual:
MENU> scroll down to DEPTH RANGE> ENTER> Exit

If this doesn't work, try doing a ful reset, as shown on PAGE 64 of your manual:
MANU> MENU> scroll down to RESET OPTIONS> <- to YES> ENTER

The Fishmark 320 is an excellent unit, and it works great in full-auto mode if you have the transducer mounted properly. Let us know if this doesn't fix your problem.

This problem is most likely linked with your transducer.

1. Check your transducer cable and make sure the plug terminals are clean, as well as the plug on the back of the unit.
2. Make sure the transducer cable is plugged in correctly and securely.
3. Make sure the transducer is in the water and mounted according to the directions, parallel to the bottom of the boat
4. Turn the unit on while the boat is in the water, but with the engine OFF.

IF it works when the engine is off, but vanishes when the engine is on, you may be having electrical interference.

IF it works when the engine is running, but vanishes when the boat is moving, it is a turbulence problem. Move the transducer.

IF it does not work at all, try borrowing a new or a "known good" transducer and seeing if it works then. If so, replace the transducer.

Let us know if these work or now.

if it has an internal battery make sure that didn't come unhooked. if you have an external source of power it may have broken the connection inside. or it is possible the unit has internal broken parts from being dropped. the only way to fix that is to take it apart.