G1176 PCB problem? Bad etch.

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CurtZHP

Well-known member
Joined
Mar 21, 2005
Messages
634
Location
Allentown, PA
http://www.zerrohouseproductions.com/g1176pcb.jpg

You'll see from the picture that portions of the board got hazed out during the etching process.  Fortunately, most of this happened on the large ground plane areas.  You can also see how I attempted to "repair" it in a few spots.  How critical is this to the circuit?  Is it OK, or should I just bite the bullet and etch another board?

 
Definitely etch another board... for no other reason than the specific layout you selected has a know ground loop issue in the design.

use this one instead:
http://mnats.net/files/MNATS1176REVD.pdf
 
It looks like MNATS has a Revision H board layout on the site.  Would that be the better option?

Then again, he mentions a Rev. J, but it looks like that's for sale only, no layout provided.

 
The layout revision (a,d,h,j etc... ) refers to the revisions that urei had of the different 1176's... ie. rev a = bluestripe
Just gotta choose your flavor

cheers
 
If you want etch the Urei  F or G version go to the H version of Mnats very similar to the J version, but if you want the A version flavor o D version go to buy the two sides bords by Mako mnats)
 
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