Gps i need a replacement owners manual for a lms-337c df (gps-sounder) can anyone help or have one for sale

Hey Iva,
Here is the manual.. this should help you with any questions you may have..
https://www.lowrance.com/Root/Lowrance-Documents/LMS525CDF-520C_0151-461_120706.pdf

the lcd is going out and will cost more to fix it then the cost of the gps....my advice is to get a new one from bestbuy and get the 4 yr performance service replacement plan so next time you have a problem like this they will replace it for free.

sounds to me bad key pad

my lowrance lms 337c df will not power up. I checked all the cables and poer and they are good . can you assist me

• No it does not. Lawrance often makes either external or internal GPS units. This is an internal antenna unit only model. Hope this helps.

Regards, Tony

http://primus.lowrance.com/support/resultDisplay.do;jsessionid=93352691ABEF9983BE5DDC0B1405D421?docType=1000&contextId=773:7.23,3621.3656,7.23&clusterName=ClusterPublic&docset=/Documents/Units/Lowrance/Combo&linktosource=1&responseId=135ccbe2cfd4f608:dcb03b:129e656421a:-62a8&groupId=4&answerGroup=1&score=985&page=http://primus.lowrance.com/icr/units/Lowrance/Combo/LMS527CDFiGPSPub.htm&result=0&excerpt=LMS-527C+DF+iGPS&resultType=5000#Goto7

I'd suggest calling Lowrance.. Those guys are very helpful with step by step support... I just purchased a used boat with a 525c df on it and been troubleshooting some problems with it. Central time zone and best to call right when they open or turn on the phones at 8:15.

Normal 0 false false false MicrosoftInternetExplorer4 st1:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}This could be caused by glitch in the operating systemsoftware or by low voltage due to a short in the unit or somewhere in the boatswiring. To troubleshoot the problem Iwould recommend the following steps.

1. Try a soft reset
2. If the problem resurfaces, try a hard reset
3. Update the the operating system software

Soft Reset (Does not delete GPSData)
1. Turn unit OFF 2. Press and holdthe PAGES key
3. Press and hold the PWR key
4. Release both buttons when the USA map
Appears

Hard Reset (Deletes stored GPS Data
such as Waypoints and trails)
1. Back up any waypoints, routes,and trails that you want to save on a blank MMC card
2. Turn unit OFF
3. Press and hold the ZIN&ZOUTKeys at
the same time
4. Pressand hold the PWR key
5. Release both buttons when the USAmap
appears

To update the operating system software, check out this link:
Lowrance337c df update


If you don't have a card reader I can program an update card for you.

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.

Heres the update
http://www.lowrance.com/Products/Marine/Full-Size-SonarGPS-Chartplotter-Combos/LMS-335C-DF/Downloads/LMS-335C-DF-Software-Update/