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I have a navman Fish 4600 sounder first problem the speed fluctuates while going at a constant speed.Second when you turn the unit on it takes quiet a while to to acuratly see the bottom. Any help would be great. Cheers Pete

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SOURCE: problem with navman 4150 fish finder

I installed my Navman 4150 depth finder along with the Navman GPS unit when I purchased my Bayliner Trophy 20Ft. Offshore model. Everything was ok for one year and it has been downhill since then. Losing signal, unbelievable high depth ranges, blank periods, etc.. I now can't even get a reading tieded up at the dock. I am now giving up and shoping for a quality unit.. Cape Disappointment.........

Posted on Jul 21, 2009

  • 111 Answers

SOURCE: i can never read the fish on the screen

perhaps someone has messed with your sounder settings. You may want to factory reset the sounder from within one of the menus in your navnet. Also you may have a transducer going bad. Did you hit anything with it or run aground once? Maybe someone painted over the face of the transducer with bottom paint. There's alot of things that can cause this to happen. It would be best to have the sounder checked out before you do anything to the ducer. Remove your navnet and sounder and take it to a dealer to test on the bench. If you're in the maryland area, Mid-shore Electronics and handle this for you. Even if you're not, you can send the units to them.

Posted on Feb 01, 2010

ZJLimited
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SOURCE: Navman fish 4500. Won't

Keep in mind that something wire could be loss in ths installation or ground there.

1. The fishfinder won’t turn on:
a) The FISH 4500/4600 is designed to operate on a 12/24 volt battery system, where the voltage may vary from 10 to 35 volts. If an excessive voltage is supplied, a fuse will be tripped, turning the display unit off. Check the fuse.
b) Check that the power cable connector at the back of the display unit is securely plugged in and the collar is locked in place. The collar must be secure for watertight connection.
c) Measure the battery voltage while the battery is under load - turn on some lights, radio or other electrical equipment connected to the battery. If the voltage is less than 10 volts:
- the battery terminals or wiring on the terminals may be corroded.
- the battery may not be charging correctly or may need replacing.
d) Inspect the power cable from end to end for damage such as cuts, breaks, squashed or trapped sections.
e) Ensure that the red wire is connected to the positive battery terminal and the black wire to the negative battery terminal. If wired for the Auto Power option, ensure the yellow wire is connected to the ignition circuit. Also check the boat’s main switch circuit (see section 6-5 Wiring options).
f) Check for corrosion on the power cable connector and clean or replace if required.
g) Check fuses that are placed in line with the power cable. A fuse can be blown despite appearing to be good or the fuse may be corroded. Test the fuse or replace it with a fuse known to be good.

2. The fishfinder operates erratically:
a) Check that the transducer does not have debris (e.g. weed, plastic bag) caught around it.
b) The transducer may have been damaged during launching, running aground or while underway with debris etc. If the transducer has been impacted, it may have been kicked up on the bracket. If it is not physically damaged, reset the transducer back to its original position. (see the Transom Transducer Installation Guide.)
c) When the transducer is less that 2 ft. (0.6 m) from the bottom, the depth readings may become inconsistent and erratic.
d) Manual Gain may be set too low, which may cause weak bottom echo or no fish signals. If in Manual Gain, try increasing the Gain.
e) Ensure the back of the bottom surface of the transducer is slightly lower than the front and the front is as deep in the water as possible in order to minimize the generation of bubbles through cavitation. (see the Transom Transducers Installation Guide.)
f) Check the transducer and power cable connectors at the back of the display unit are securely plugged in and the collars are locked in place. The collars must be secure for watertight connection.
g) Inspect the power cable from end to end for damage such as cuts, breaks, squashed or trapped sections.
h) Ensure there is not another fishfinder or depth sounder turned on, which may interfere with this fishfinder.
i) Electrical noise from the boat’s engine or an accessory may be interfering with the transducer(s) and/or the Navman fishfinder.

More information can be found on site: www.navman.com

Hope helps.

Posted on Aug 25, 2010

SOURCE: Navman Tracker 5505, number 0603A30035604.

1.The TRACKER is designed to operate on a 12/24 volt battery system, where the voltage may vary from 10.5 to 32 volts. If an excessive voltage is supplied, a fuse will be tripped, turning the display unit off. Check the fuse.

2. Check that the power cable connector at the back of the display unit is securely plugged in and the collar is locked in place. The collar must be secure for watertight connection.

3. Measure the battery voltage while the battery is under load - turn on some lights, radio or other electrical equipment connected to the battery. If the voltage is less than 10 volts:

- the battery terminals or wiring on the terminals may be corroded.

- the battery may not be charging correctly or may need replacing.

4. Inspect the power cable from end to end for damage such as cuts, breaks, squashed or trapped sections.

5. Ensure that the red wire is connected to the positive battery terminal and the black wire to the negative battery terminal. If wired for the Auto Power option, ensure the yellow wire is connected to the ignition circuit. Also check the boat's main switch circuit

6.Check for corrosion on the power cable connector and clean or replace if required.

7. Check fuses that are placed in line with the power cable. A fuse can be blown despite appearing to be good or the fuse may be corroded. Test the fuse or replace it with a fuse known to be good.

Posted on Jan 29, 2011

  • 76 Answers

SOURCE: how to get the fish

ok mate hear you go here is the manual just click here http://www.furunousa.com/ProductDocuments/FCV585%20FCV620%20Operator's%20Manual%20e.pdf


go to page 21. you will need abobe reader but most people have that if you dont just go to adobe.com and download it its free. ok hope that helps. please leave a vote.

Posted on Mar 11, 2011

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