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Forgot the Grey Fish Paper A12

PostPosted: Mon Jun 14, 2010 12:29 pm
by room4studios
Hello,

I have read a few topics with similar threads and their seems to be either a case of it doesn't matter it works anyway, or some discussion of lifting the transformer out in terminology i don't understand.

Basically I've made the preamp, but haven't done any of the tests. When tidying up i came across the fish paper. Doh.

What should i do and can you attempt to describe in layman's terms how to sort the problem

I found this on a 'forgot the fish paper' thread concerning an n72, but i don't understand what it means:

"Try wicking up as much solder as you can before you try anything else. I suspect you'll be able to get the tabs up without too much trouble"

Also could you explain what the fish paper does (again in layman's terms)

Thanks

Phil

PostPosted: Mon Jun 14, 2010 2:35 pm
by tpryan
The paper insulator prevents the transformer case from shorting exposed pads on the PC board. If you've already installed the transformer, you may be able to open a gap by carefully prying with a small screwdriver while re-flowing the solder joints. If you have no experience with board rework, take it to a local electronics repair tech and explain the problem.

PostPosted: Thu Jun 17, 2010 10:45 am
by Todzilla
I made this same mistake. What a royal pain to remove and correct, resulting in my only send-back to Tim.

LESSON #17: Drink four beers AFTER working on the preamp kit.