Reply
 
Thread Tools Search this Thread
 
Old 30 August 2013, 13:06   #1
Member
 
tanimola's Avatar
 
Country: UK - England
Town: Shropshire
Boat name: Tanimola
Make: Brig F400S
Engine: Evinrude E-Tec 40HP
Join Date: Sep 2012
Posts: 47
Lowrance LMS 332C - GPS Problem

'Out of the blue' I am receiving an error message on my Lowrance plotter:


"GPS Module not responding"

I have checked all connections, power etc. and all are ok

Interestingly, at the same time the fuel sensor stopped working too. However, when I unplug the GPS connector, the fuel sensor works again...

What am I missing?
__________________

__________________
tanimola is offline   Reply With Quote
Old 30 August 2013, 21:21   #2
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
2000 series antenna? Those were known to be rather fragile (a strong radar signal nearby could kill them; almost always prevented them from getting a signal.)

Sounds like the NMEA 2000 interface in yours is toast, to the point where it's preventing anything else from talking on the bus.

As far as I know, the 2000, 3000, and 4000 are all interchangeable (aside from the larger connector on the 2000. You can get adaptors to get around that.)

jky
__________________

__________________
jyasaki is offline   Reply With Quote
Old 31 August 2013, 10:14   #3
Member
 
tanimola's Avatar
 
Country: UK - England
Town: Shropshire
Boat name: Tanimola
Make: Brig F400S
Engine: Evinrude E-Tec 40HP
Join Date: Sep 2012
Posts: 47
It is an LGC 2000 receiver.

Photo shows the fuel sensor connected - working ok - but when I connect the GPS module the fuel sensor is not picked up either!

Click image for larger version

Name:	image-3618302303.jpg
Views:	127
Size:	41.6 KB
ID:	84839



Click image for larger version

Name:	image-2635553663.jpg
Views:	126
Size:	34.5 KB
ID:	84840
__________________
tanimola is offline   Reply With Quote
Old 03 September 2013, 12:29   #4
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Which implies the problem with the GPS sensor is killing the network communication signals.

General way this thing works is that you've got 2 wires for intercommunication. Each device listens for an opening on the bus, then puts out a header saying what data it is sending, then transmits its data followed by a stop signal to say it's done. At that time, the next device will see the bus is clear and send its data, followed by a stop signal, and so on and so forth.

So, most likely, either your antenna is pulling the entire bus down so nothing can talk or it's not sending a stop signal to say the bus is clear. This has nothing to do with whether the antenna is receiving a satellite signal or not; just its effect on the network.

If someone nearby has a the same antenna, see if you can swap it in to yours to verify it's your antenna. Odds are pretty good it is causing the problem.


jky
__________________
jyasaki is offline   Reply With Quote
Old 03 September 2013, 16:01   #5
Member
 
tanimola's Avatar
 
Country: UK - England
Town: Shropshire
Boat name: Tanimola
Make: Brig F400S
Engine: Evinrude E-Tec 40HP
Join Date: Sep 2012
Posts: 47
Thanks for this.

Have now spoken to Lowrance service team.....they agree with your conclusion.

They will replace the antenna for me at a very agreeable price - not sure why it failed though???

Suggested a software update too - seems very straightforward via the SD card

Thanks again
__________________
tanimola is offline   Reply With Quote
Old 04 September 2013, 11:57   #6
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Failed because the LGC-2000 wasn't designed very well (or not built very well.)

A lot of people had problems with them.

I upgraded my 332 to a 525 (I think it is) when the card reader stopped reading; it came with an LGC-3000; has worked well since (with one problem area where one of the SF Bay traffic radars is, I think.)

jky
__________________

__________________
jyasaki is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:21.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.