TECH GURU's out there, how to clean Circuit Board?


Looks like something has spilled onto the Circuit board. Older Rotel amp, there some greasy stuff and cat hair all over the internal board, very dirty and grimy.....

How do I clean this up, works perfectly but I believe its not a healthy thing, I am a tech oriented guy so I need instructions, like what can I use to clean, solution or anything? brush and what should I avoid doing.

Thanks for your help
rapogee
Last question,

I believe I can spray this carefuly over the board where the grime is and clean gently? It wont harm the parts that are presently on correct?

This might be better maybe? Anyone? See link below

http://www.mgchemicals.com/products/4140.html

Thanks

Rapogee
Maybe better to use q-tips with cleaner, so that you don't have to spray directly onto the board, and risk stuff disolving and being carried to even less accessible areas. I have done this to clean excessive flux off parts I was repairing in the past.

This stuff would probably do it if not used too liberally.

http://www.radioshack.com/product/index.jsp?productId=2102649&cp=&kw=cleaner&parentPage=search
There are several products made to clean circuits. If it weren't pouring down raining outside I'd go out to my car and get one so I could read the label to you. Find a product made for contact cleaning, get a small stiff brush, and go at it gently. I like to use acid brushes (that's what I call them). They are about six inches long with fairly soft bristles. I cut the bristles to about half their length for firmer brush.
I do this all the time. If the board is removable, take it out and saturate the offensive area and brush if needed.
This is not a problem if the proper product is used. Be careful because as one of the previous posters pointed out, some can harm plastics. Good luck and let us know the results.
Timrhu...Contact cleaner is for contacts! Some electronic parts will not take kindly to such treatment. (Don't ask how I know). I know Freon is safe, but you can't get it. I know that a safe Freon replacement cleaning fluid exists, and I wish I could give you the name of the stuff. Do some research.