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When I install this chip in my Lowrance LMS-332c, it will not boot up. It keeps trying but stays on the Lowrance home screen.

My unit will boot up normal without a card in it. It will boot up normal with my Great Lakes 901G in it. When I put this card in it, it goes back to the Lowrance home screen and never recovers.

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Posted on Jan 02, 2017

hydetech
  • 113 Answers

SOURCE: I have a Lowrance LMS

Are saying you can't read the screen at night, or is it hard to read the screen anytime?

If you tap the power key, you should here a beep and the screen should get brighter. If you hear the beep and there is no light, then the internal light has failed.

If you can't read the screen in normal light conditions try viewing it under a bright light at various angles. You may notice that the screen is just barely visible. If this is the case you may be able to fix the problem by adjusting the contrast. Try tapping bthe power key and then tap the right or left side of the track pad. It may take several taps to see the results. If left or right doesn't work, try up or down.

Posted on Jul 21, 2008

  • 1 Answer

SOURCE: My Lowrance LMS-337c df keeps going crazy.

Mine does the same thing when the voltage is low. The GPS part will drain the battery if left connected. Learned the hard way. I installed a battery isolator switch, the one with the big red key, and switch the battery to "Off" when finished. Either that or unplug your unit each time. Still, if the battery is not maintained during storage, the same problem will arise until the battery has been fully charged. Never has done this when the outboard is running and current is going to the battery from the alternator.

Posted on Jan 24, 2010

jjanssen7
  • 6 Answers

SOURCE: LMS 332c Power cycles on own

i've repaird this by installing a secondary powerswitch and disconnecting the power switch on the keypad. It's an involved repair but it can be done.


Posted on May 28, 2010

jjanssen7
  • 6 Answers

SOURCE: my lms 332c comes on by itself and flashes.now i

Power switch is stuck on. It is a tricky repair, but disable the swtich internally and install one externally

Posted on May 28, 2010

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My lms 332c wont stay on tried soft reset turn it on goes off what to do?


what do you have your unit hooked to too power up straight off the battery or thru a power switch if thru a switch hook it straight to bettery

Nov 15, 2012 | Lowrance Lms 522c 5" Screen Color Internal...

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Units flashes when turned on --won't stop


5_5_2012_6_29_36_pm.jpg
Here's my LMS 332c circuit board. I'm showing where the power source is on the lower right, and where I believe the first two ribbon cables that lead to the power switch on the front panel (upper left). Can anyone tell me how to disable the internal power switch and where? I want to install external switch and bypass the internal. I can solder and not afraid to try since this unit is out of warranty and is not functional as is with powering on/off and screen flashing randomly. Thanks!

Apr 08, 2010 | Lowrance LMS-332C GPS Receiver

3 Answers

LMS 332c Power cycles on own


i've repaird this by installing a secondary powerswitch and disconnecting the power switch on the keypad. It's an involved repair but it can be done.


Jul 13, 2009 | Lowrance LMS-332C GPS Receiver

2 Answers

Hello- My 332c will not show speed. It worked before.The spinner wheel is not damaged.Speed just flashes 0.00 mph Thanks, Jeff


Try setting up the speed in the overlay data menu again:
1. Press MENU, arrow down to OVERLAY DATA and press ENT
2. Highlight the option for speed (WATER SPEED or GROUND SPEED) and press ENT
3. Highlight the REMOVE button and press ENT
4. Highlight (PRESS ENT TO ADD) and press ENT
5. Arrow down to SONAR DATA and press ENT
6. Arrow down to WATER SPEED and press ENT, a check will be displayed in the box
7. Press EXIT twice

If the speed is still flashing, the data is still invalid. Try resetting the unit completely:
1. Turn unit off
2. Press and hold the PAGES and POWER key until the "DO NOT RELY..." alarm appears
3. Set up the overlay data for speed again: 1. Press MENU, arrow down to OVERLAY DATA and press ENT; 2. Highlight (PRESS ENT TO ADD) and press ENT; 3. Arrow down to SONAR DATA and press ENT; 4. Arrow down to WATER SPEED and press ENT, a check will be displayed in the box; 5. Press EXIT twice

If the speed is still flashing, good chance the speed sensor is bad even though the wheel still spins. Install the latest LMS-332 updates from http://www.lowrance.com/en/Products/Marine/Full-Size-SonarGPS-Chartplotter-Combos/LMS-332C/Downloads/LMS-332C-Software-Update/ and set up the overlay data again.

If it turns out that the speed sensor is bad, just use speed from the GPS. This can be set up from the overlay data menu as GROUND SPEED.

(note: the overlay data must be set up for each page individually. So if you set up speed to be displayed on the map screen, it will not also be set up on the sonar page)

Jul 12, 2009 | Lowrance LMS-332C GPS Receiver

1 Answer

Hi,when i switch on my lms-332c the map does not come up on the screen.If I remove and replace the map card it works perfectly. Can I fix this? regards nigel


I am guessing that the card you are using is a NAVIONICS chart? There have been some Lowrance units that were made around the same time that have had problems recognizing a Navionics chart right from power up.

Make sure the LMS-332 has the latest firmware version which can be downloaded from http://www.lowrance.com/en/Products/Marine/Full-Size-SonarGPS-Chartplotter-Combos/LMS-332C/Downloads/LMS-332C-Software-Update/

If the update doesn't help, this is going to be a compatibility problem with the LMS-332 and that particular card. You will need to replace the card or upgrade to a newer unit...but probably can just get used to removing and replacing the card when you turn the unit on.

Jul 08, 2009 | Lowrance LMS 332c Mapping Sonar/GPS...

1 Answer

I have a lowrance LMS 332C GPS. After 5 years I


The LGC-2000 is bad would be the most likely cause, but if this started right after you changed the cables, Try connecting the NMEA 2000 network to a different power source than the main power. If you still have the original cables, and you didn't have the problem before, try using those again to make sure there isn't anything wrong with any of the new cables.

But most likely, the LGC-2000 is toast and you will want to contact Lowrance support to see about getting it repaired/replaced.

Jul 04, 2009 | Lowrance LMS-332C GPS Receiver

1 Answer

Lowrance 330c screen says '' boot failed''


Try a hard reset:

1. Turn the LMS-330 off
2. Press and hold the ZIN, ZOUT, and PWR buttons
3. Release the three buttons once you see the "warning, do not rely..." message appear

If you get that far, the problem is solved. If you get boot failed again, try installing the latest update which can be downloaded from http://www.lowrance.com/en/Downloads/Product-Software-Updates/

If you still get boot failed, you will need to get the LMS-330 repaired/replaced. You can contact Lowrance support at 800-324-1356 or email them by going to http://www.lowrance.com/en/Support/Product-Support/Contact/

Mar 22, 2009 | Lowrance LMS-330C GPS Receiver

1 Answer

I need CD, or DVD to learn how to use my Lowrance it is modle LMA-332C & LMS-337C DF.


Here you can buy the DVD for $13:
Bennett Training DVD For Lowrance LMS-332C
Here is the user manual:
LMS-332C and LMS-337C DF Owners Manual
Do not forget to rate the solution appropriately.

Many thanks.

Aug 31, 2008 | Office Equipment & Supplies

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