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 Garmin nüvi forums
 Nuvi 750 help identifying this IC
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jrl_1644

USA
5 Posts

Posted - 30 mai 2012 :  01:13:49  Show Profile  Reply with Quote
Hello GPSpassion,
This is my first post here and I was hoping that somebody might be able to help me identify this part in the following picture from a Nuvi 750, but possibly same component across different models. The chip removed from this board was cooked and no longer had any markings on it. I was hoping that somebody could share a good picture that I can use to identify the numbers. Or if anybody has a dead nuvi board that I can salvage that peice from I would be interested.
Thank you.
-Joe
higher resolution can be found here
http://www.flickr.com/photos/79629767@N04/7298151354/


Edited by - jrl_1644 on 30 mai 2012 01:46:06

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NanaimoRick

Canada
7389 Posts

Posted - 30 mai 2012 :  02:07:11  Show Profile  Reply with Quote
Welcome to our forum Joe.

There maybe someone here that can help you but in case there isn't you may want to look at http://www.sharc.net/gps_repair.htm and use the Contact Us link to drop them an e-mail with your picture. An alternative could also be to post on their forum at http://www.sharc.net/discus/messages/6/419.html?1336761838 . Jim , the president of Sharcnet is a member here and has been very helpful to our members, both with repairs and with his knowledge of the insides for these things.


Rick James - Nuvi Forum Moderator
Nuvi 350 - Nuvi 760 - Nuvi 1695LM - Nuvi 3790LMT (with ecoRoutes HD) - Nuvi 2460LMT - Nuvi 3597LMTHD (with ecoRoutes HD) also TomTom 540S for side by side comparison >> Here <<
2010 Golf Wagon 2.0 TDI Clean Diesel

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jrl_1644

USA
5 Posts

Posted - 30 mai 2012 :  02:15:15  Show Profile  Reply with Quote
NanaimoRick,
Thank you very much for the leads. And thank you for the welcome to the forum. Its refreshing to see such friendly forums. I have been reading through for a couple of days now, hoping to find information on my issue.
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jrl_1644

USA
5 Posts

Posted - 30 mai 2012 :  07:33:43  Show Profile  Reply with Quote
quote:
No need to quote the message directly above - Thanks GPSpassion Team


All the help is appreciated. Thank you very much.

Edited by - NanaimoRick on 30 mai 2012 16:06:44
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blackphy

8 Posts

Posted - 31 mai 2012 :  20:06:41  Show Profile  Reply with Quote
Hello Joe,

from my experience I would suggest, that the missing part is a ESD protector. If it was "fried" something/-one might have discharged a little too much.
I guess you will need something like this: http://www.semtech.com/images/datasheet/rclamp0502a.pdf, though I guess this specific part has a differing pin out.

Bye MArc
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jrl_1644

USA
5 Posts

Posted - 01 juin 2012 :  00:58:04  Show Profile  Reply with Quote
NanaimoRick,
Sorry about quoting the post above mine. Wont happen again. But you seem to have also deleted the post by Landscaper2009.
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NanaimoRick

Canada
7389 Posts

Posted - 01 juin 2012 :  01:06:09  Show Profile  Reply with Quote
Not sure how I could have done that as I just edited out the quote in your post. Maybe Landscaper deleted his own post.

Rick James - Nuvi Forum Moderator
Nuvi 350 - Nuvi 760 - Nuvi 1695LM - Nuvi 3790LMT (with ecoRoutes HD) - Nuvi 2460LMT - Nuvi 3597LMTHD (with ecoRoutes HD) also TomTom 540S for side by side comparison >> Here <<
2010 Golf Wagon 2.0 TDI Clean Diesel

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blackphy

8 Posts

Posted - 01 juin 2012 :  01:28:03  Show Profile  Reply with Quote
Hello Joe,

I googled a bit more and found some nuvi 760 PCB images (http://blog.willwinder.com/2010/05/nuvi-760-screen-replacement.html). Looking through the high res images (3072 x 2304) (esp. http://www.flickr.com/photos/39069226@N03/4611801319/in/photostream/lightbox/) it seems that the case marking on the the 6 pin IC is F54, the same as on the 6 pin IC above the craddle connector.

A F54 case marking could suggest a RClamp0504F by Semtech.

Bye MArc
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jrl_1644

USA
5 Posts

Posted - 01 juin 2012 :  01:37:10  Show Profile  Reply with Quote
blackphy,
You are my hero. That is exactly the info I was looking for. I searched google images for a couple of days but somehow that picture eluded me.
I really cant thank you enough.
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