Question about Lowrance GlobalMap 3500C GPS Receiver

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Lowrance 3500 color map GPS

Unit will not power up. Voltage check indicates 12.5 volts to plug. Plugs clean. Unit was idle for several months. Removed unit from boat, and mashed power button dozen times, listening, and feeling for switch activation. Replaced power plug and activated power button. Unit powered up. Switched unit off, and have not been succesful getting unit to power up again.

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SOURCE: powerin up - screen goes blank after a few swconds -

had same problem. the cause was corrosion in the boat wiring. the power wire was corroded 95%thru. there was enough voltage to start the unit but when the sounder kicks in the voltage dropped below minimum and the unit shut off. took a LOOOONG time to find.

Posted on Jan 10, 2008

  • 13433 Answers

SOURCE: lowrance LMS 337

I wonder if the module has failed again, have you tried reseting the device?

I'm looking into this but I suspect that repairs are required again.

Posted on Jul 09, 2008

  • 1 Answer

SOURCE: lowrance 330c gps unit

A "soft reset" can be accomplished by pressing and hold "Pages" key and press and hold "PWR" key till USA map comes on , then release both. A "hard reset" requires press and hold both "Z in" and "Z out" buttons and press and hold "PWR" button releasing all three when USA map appears.

Posted on Oct 28, 2008

  • 1 Answer

SOURCE: Lowrance 250c map update

tring to get an manual for my system i left it and the glove dept. an a cari sold. thank you lowrance iway 250c .

Posted on Feb 13, 2009

  • 9 Answers

SOURCE: Lowrance LcX 27C

You need to get a MMC card for it to show Canada.

Posted on Jun 24, 2009

  • 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

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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.

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Jul 27, 2010 | Lowrance LMS-330C GPS Receiver

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Gps will not start up

Hello :

I recommend you to reset your device to fix the problem .

Here is how to reset your GPS :

1. Turn unit OFF
2. Press and hold the PAGES key
3. Press and hold the PWR key
4. Release both buttons when the USA map appears

Here is how to hard reset your GPS . But be careful because Hard Reset (Deletes stored GPS Data such as Waypoints and trails)

1. Turn unit OFF
2. Press and hold the ZIN&ZOUT Keys at the same time
3. Press and hold the PWR key
4. Release both buttons when the USA map appears


Apr 16, 2010 | Lowrance LCX-15MT GPS Receiver

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Garmin nuvi 5000 wont turn on. I can plug up the usb up to the computer and the screen shows garmin logo with a gps connected to a computer like its charging. But when i press the power button weather it...

Your nuvi 5000 does NOT have a internal battery and that means that you cannot operate it unless it is connected to a 12 volt power source. Connecting it to your computer via USB allows you to install map updates, check for firmware updates, etc, but you will not be able to use it as a gps while it is connected to the computer. There is nothing wrong with your gps.
To use your gps in the home you need to purchase a 12 volt adapter, there are several types, plug the adapter into your wall outlet and connect your gps to it. If you can sit near a window it will help in picking up the satellite signal. Just keep in mind that you cannot connect the 12 volt power supply and use the usb cable at the same time. Enjoy your gps.

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1 Answer

Garmin gps 12 wont turn on.

Sorry to hear of the dead units. Are you using the correct power cable with a small hole in the centre of the plug? The GPS 12 is strictly limited to 7 volts only. The accessory cigarette lighter cable for this model has a circuit inside to drop the voltage from 12 to 7. Cannot be fixed. There would have been a plastic peg in the back of the GPS socket to prevent anything but the correct voltage Garmin cable being plugged in. Unfortunately these pegs are easily broken off. Yes, they are a good little unit even though well on in years. The next model up - the 12XL - can accept a wide voltage range and does not have the plastic peg.

All the best, Tony at KiwiGPS.

Apr 20, 2009 | Garmin GPS 12XL GPS Receiver

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Need to know the connector brand and the functions on each pin

Because Lowrance doesn't publish the pin connections, neither in their user guide, neither on a convenient website - this is really a breakpoint for me - I checked GPS connector suppliers and I found different plugs, type and connection codes in Europe, where information comes with the unit as a EU - norm

Feb 18, 2009 | Lowrance GlobalMap 3300C GPS Receiver

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I have a lowrance lms332c and the unit powered off , was able to restart.shortly after powered off again and now has nothing.checked fuse and fuse is ok.

try to hold in the page button and power button at the same time to reboot your unit, But you may or may not lose waypoints,

Jul 11, 2008 | Lowrance LMS 332c Mapping Sonar/GPS...

2 Answers

Was working fine,then i get mess.gps module not responding ???

hi,your gps module-antenna is powered into 12 volt same as unit,have you traced your cable-fuses etc

May 20, 2008 | Lowrance GlobalMap 3300C GPS Receiver

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