Cleaning a Circui board, Warning big pics
Printed From: West Coast Fieros
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URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=2276
Printed Date: 22 November 2024 at 10:53pm
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Topic: Cleaning a Circui board, Warning big pics
Posted By: Capt Fiero
Subject: Cleaning a Circui board, Warning big pics
Date Posted: 16 January 2011 at 6:47pm
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Well so she died and I took it apart to see what the deal was and I was greeted with this…… I’d like to try cleaning the board and see if maybe I am lucky and the corrosion has just finally gotten to be enough to short a trace or something like that. I know it has been submitted to the high humidly we have on the west coast and heated and cooled a lot. So you got any suggestions on how to clean her up. The unit itself is not expensive anymore, I paid something like $200 for it when I bought it, however I checked eBay and used ones of the same model are only about 40 bucks now. However it has been perfect and I love it, so I would like to keep it. Here are some high res shots I grabbed with my digital camera. I know it looks bad, really bad, but hey, its apart on my bench now, and it will only take a min to put it back together, so I'd like to know what is the best stuff to use to clean it. I do have some electrical contact cleaner here that I use on stuff like ECM plugs and such in the Fiero, would that be safe to use on the bare board? Be prepared to look away at first glance as it does look horrible.
------------- Capt Fiero 88 Fiero GT 5spd V6 Eight Fifty Seven GT V8 5spd. |
Replies:
Posted By: Dawg
Date Posted: 16 January 2011 at 8:51pm
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Hmmmm....It's almost like that one chip lost all it's magical goo. I would start with rubbing alcohol and then if that didn't work then carefully try acetone and lastly lacquer thinner. If you manage to get it working, spray a bit of clear lacquer over the board after it's all cleaned up. This will help stop this from happening again. The Dawg ------------- You dream it up....I'll make it |
Posted By: CFoss
Date Posted: 16 January 2011 at 9:35pm
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Yuck! Stiff bristled brush and isopropyl is what I use on my boards. Chay ------------- 86 SE 3.4 |
Posted By: kharmata
Date Posted: 17 January 2011 at 11:46am
keep the wave guide covered. don't want any crudd in there. 
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CFoss wrote:Posted By: Capt Fiero
Date Posted: 17 January 2011 at 12:59pm
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Well I used an old toothbrush and lots of 2 diffrent kinds of cleaners one for contacts and one that is specifically for cleaning circut boards. I just want to thank everyone that posted and replied with suggestions. I cleaned it about 4 times, each time spraying off all the stuff from the previous clean and starting over.
http://www.captfiero.com/circutboard/result.avi - http://www.captfiero.com/circutboard/result.avi WooHoo, it works and I am safe to go driving again. Oh for the record its a Whistler 1650 detector. ------------- Capt Fiero 88 Fiero GT 5spd V6 Eight Fifty Seven GT V8 5spd. |
Posted By: Romeo
Date Posted: 17 January 2011 at 1:07pm
Do it quicker: Go for liquor.  ------------- Never shift into reverse without a back-up plan. |
Posted By: Graeme
Date Posted: 17 January 2011 at 3:12pm
amazing.. I thought for sure it would be toast.
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Posted By: beken
Date Posted: 18 January 2011 at 10:54am
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Wow...that's a great job. I need to try this on the circuit board in my gauge cluster.
-------------  Beken (aka Ken) - bekentech@westcoastfieros.com Original and still the owner of an 85SE 2M6 4spd |
Posted By: Dr.Fiero
Date Posted: 18 January 2011 at 5:41pm
Gotta be ubber careful doing that - the foil traces very easily peel right off the plastic 'board'. |