Question about Lowrance LMS 332c Mapping Sonar/GPS Receiver

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Transducer is mounted on a plastic bracket to trolling motor. when trolling motor is turned on, black vertical lines appear on my screen. lowrance x107 cdf

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Are you utilizing another unit in your dash? If so, sometimes when both units are on and in sonar mode, their frequencies will intefere with each other causing the vertical lines. I would suggest turning your dash unit off or lowering it's Hertz rate from 200Hz down to 50Hz.

Funny story...I saw this same issue on my boat years ago. I had an X102C up fron and an LCX-19c in the dash. I acutally thought it was some sort of man-made structure and spent time fishing it...DOH!

Posted on Mar 25, 2009

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I turn my power source on and my screen flashes like it's not reading anything from my transducer but the transducer is new.


Has this unit worked in the past, or are the transducer and the unit itself new? Is this a Lowrance LMS-240 as indicated before your question?

Please let me know and I can help you out here.

Thanks, just reply here,
Tim

Oct 31, 2010 | Lowrance LMS-240 GPS Receiver

1 Answer

My Transducer had broke and the sonar went out, then the transducer fell completely off and the unit itself will not power up. I checked the power ot the unit and i have 12 volts going to the unit. It...


All Lowrance systems have an in-line 3 Amp fuze. My guess is that when it broke and fell off the fuze shorted out. Look back the power sypply to the unit and you will find the in-line fuze. Replsacit with a new 3 Amp fuze and you should be up and running.

Aug 30, 2010 | Lowrance LMS-332C GPS Receiver

1 Answer

My fishfinder lowrance x85 the screen is fading is there any way to tell if it is the unit or the transducer and is there another uniy yhat I can use with that transducer so I won;t have to rewire it...


It is not the transducer. the transducer just provides the sonar reading back to the display. The issue is with the display head unit. Have you tried to adjust the contrast for the fading? Does the screen disappear after awhile? Is the head unit mounted close to other navigation equipment, such as a Compass that may cause interference?

Jul 24, 2010 | GPS Devices

1 Answer

Built in transducer is not picking up/transferring depth to graph


I havew a Minn Kota trolling motor on a Z21 Ranger. Minn Kota has a built in (puck type) transducer on the motor. I have a lowrance 135x on the front. The lowrance will read the temp but will blink the depth. I switched out the depth finder with another 135x with the same results. I have a 522c gps unit networked together and mounted on the console that works fine. Any suggestions on the problem with the 135x?

Jul 27, 2009 | Minn Kota Maxxum 70 Universal Motor/Sonar...

1 Answer

Installing an old used lowrance fish finder


I don't think your old fish finder is the LMS-332C GPS Receiver listed above in the description. You don't need the speed wheel for the fish finder to function just the transducer and transducer mount. You should mount that on the back of the boat towards the center but not too close to the motor and not too close to the side of the board. Don't let it hand below the level of the boat. That should keep it from getting hit by the trailer or dragging on the bottom. Try to make it as level as possible. The green and white wires may be for the speed wheel but i'd need a model number for clarification. Hope this helps.

Apr 26, 2008 | Lowrance LMS-332C GPS Receiver

1 Answer

I have a Lowrance x-55,serial no.000933576,my problem is when I get into 3ft.or less of water it flashes 400 to 500 ft.,most of time it will come back on line when I get into deeper water, sometimes I have...


The transdoucer (sensor) may have been damaged. Try a new one. It can happen that there is a problem with the unit itself, but I am strong to think it is a defective transdoucer.

Jerry G.

Apr 17, 2008 | Lowrance iFinder GPS Receiver

3 Answers

Lowrance LCX-16ci - screen's gone out


I have a working unit with a bad antenna. Interested?
Davidwcantrell@comcast.net

Apr 09, 2008 | Lowrance GPS Devices

1 Answer

Lowrance LCX-19C GPS Receiver Problem


It sounds like you may have to send it out for service, but before you you do there are a few things you can try.

Low voltage can cause erratic behavior. Since you already wired directly to the battery, check the plug for corrosion.

Try unplugging the transducer cable to see if the display still behaves erratically. You wont see depth readings but you should still see the screen going black. If no erratic behavior with transducer unplugged then problem is in the transducer cable or the plug. A common source of failure is at the plug because the added stress of plugging and unplugging cables can cause the socket to twist slightly which can cause a short.

Make sure you have the latest software update.

How to see if your LCX-19C is already using version 1.8.0 software:
  1. Press the MENU button twice on your LCX-19C.
  2. Select SYSTEM SETUP.
  3. Select SOFTWARE INFORMATION.
  4. The software version for your unit is located under the line that says "LCX-19C" (ex. "Version 1.8.0").
  5. If your version is the same version listed above, there is no need to download the software.
If it is lower than 1.8.0 you can download the update from this link: LCX-19C UPDATE
Copy it onto a blank MMC card and install it in your GPS. The GPS should prompt you on how to install the update.

If you need to send the unit in for service click this link: LOWRANCE SERVICE

Good luck!

Mar 15, 2008 | Lowrance LCX-19C GPS Receiver

1 Answer

False fish readings


False fish readings are commonly caused by electrical interference such as alternator noise, and by air bubbles flowing across transducer.

For starters make sure your fishfinder is on an independent circuit and not on one powered by your ignition switch. In other words, you should be able to turn your fishfinder on, even though the engine is turned off. Ideally the fishfinder should be wired directly to the battery with an in line fuse.

Try running the boat at a speed slightly higher than trolling speed, then kill the engine, as the boat slows down to trolling speed do you still see false echos? If yes then the problem probably lies with how the transducer is mounted, or where it is located on the hull.

If you don't see the false echos when the engine is off, it may be necessary to reroute the transducer cable to keep it away from the boat's ignition wires. You can get transducer extension cables if necessary. Also there are filters that you can buy that suppress alternator noise buy attaching between the battery and the engine.

Another common cause of false echos from electrical interference is a transducer cable that has been cut and spliced.

I hope this information helps. Please reply if you have any questions about my response.

Feb 25, 2008 | GPS Devices

1 Answer

Shaft


It is not recommended to cut the transducer cables as they are sensitive to outside interference.  Most trolling motors have adjustable shafts so you can set it at the depth you want. Look for a locking mechanism where the shaft attaches to the mounting bracket.

Oct 25, 2007 | Minn Kota 55 AutoPilot Universal Sonar...

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