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Author Topic:   Lowrance 525 Install Problem
Henry posted 07-25-2007 09:38 PM ET (US)   Profile for Henry   Send Email to Henry  
I installed a Lowrance 525 on my boat and the problem is that I get a message on the screen which says that the GPS module is not responding or is not recognized.

Anyone ever encounter this problem on a Lowrance 525? If so, what was the cause?

Any feedback will be appreciated, thanks.

jimh posted 07-25-2007 11:28 PM ET (US)     Profile for jimh  Send Email to jimh     
LOWRANCE has excellent technical support. I encourage you to contact them for help in resolving this problem.
davej14 posted 07-31-2007 10:40 PM ET (US)     Profile for davej14  Send Email to davej14     
I get this message with my LMS332c occasionally when I first turn it on. Power cycling the NMEA bus always works. I never had any problems once communication with the antenna was established.
Henry posted 08-01-2007 10:23 PM ET (US)     Profile for Henry  Send Email to Henry     
Thanks for the responses. I read the manual carefully and figured out what it was. Like a lot of things, it was simple once I figured it out.
davej14 posted 08-02-2007 11:52 AM ET (US)     Profile for davej14  Send Email to davej14     
How about sharing your solution?
Henry posted 08-02-2007 02:56 PM ET (US)     Profile for Henry  Send Email to Henry     
I made a mistake in the installation.

The NMEA 2000 cable has to be connected to the same power source as the power cable. The NMEA cable has a shield wire, a red wire and a black wire. The shield and black wire go to negative post of the battery. The red wire has an inline 3 amp fuse and goes to the positive battery post.

The power cable has a red wire, a black wire and a white wire which is unused. The red wire has an inline 3 amp fuse and goes to positive battery post. The black wire goes to negative battery post.

I misunderstood a statement in the manual to mean that both cables should not be powered at the same time (they meant should not be powered from different power sources) and I left the fuse out of the NMEA 2000 power cable. I simply installed the fuse and it worked.

Moral of the story: Read carefully and employ logic!

davej14 posted 08-03-2007 09:15 AM ET (US)     Profile for davej14  Send Email to davej14     
Yup, the fuse will help :-). None-the-less I still get this error on occasion with my prior generation unit. I hope Lowrance fixed the issue on your newer model.

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