[PEDA] Protel99SE SP6 - board doesn't match schematic, no DRC errors

[Leonard Gabrielson]

Yeah,
Great.


----- Original Message ----- 
From: "Steven J. Ackerman" <sjackerman at comcast.net>
To: <peda at techservinc.com>
Sent: Wednesday, May 27, 2009 9:20 AM
Subject: [PEDA] Protel99SE SP6 - board doesn't match schematic, no DRC 
errors


> Just a heads-up - although this is probably old news to
> list members.
>
> We've used Protel Schematic v3.4 and Protel PCB v2.8 to
> design several hundred boards - mainly double-sided,
> mixed SMT and through-hole, some with hundreds of parts,
> all sizes - no problems.
>
> I did our second 4-layer PCB with Protel99SE SP6. Just
> received the prototypes back. When building the first
> board by hand, two components were on the schematic,
> but not on the PCB. Bringing up the board in Protel
> and jumping to the component by name, the missing
> components were off the board, and off the screen - perhaps
> with a negative Y coordinate. No ratsnest wires, the router
> indicated that the board was 100% routed, no DRC errors -
> sweet.
>
> Did a select outside the board area, move selection, and
> surprise - the missing two components moved into the visible
> area - ratsnest wires appeared and now the board is no longer
> 100% routed - it's magic !
>
> I don't know how the two components got 'placed' off of the
> viewable screen, or why a zoom all didn't show them, or why
> the autorouter all didn't complain, or why the DRC passed...
>
> I no longer trust Protel99SE to produce a board that matches
> the schematic.
>
> I'm glad that these are prototypes, and I can tack these two
> missing components on by hand.
>
> Great feature !
>
> Steven J. Ackerman, Consultant
> ACS, Sarasota, FL
> Web:  http://www.acscontrol.com
> Blog: http://sjackerman.spaces.live.com/
> Work: steve at acscontrol.com
> Home: sjackerman at comcast.net
>
>
>
>
>
>
>
>
>
> ____________________________________________________________
> You are subscribed to the PEDA discussion forum
>
> To Post messages:
> mailto:PEDA at techservinc.com
>
> Unsubscribe and Other Options:
> http://techservinc.com/mailman/listinfo/peda_techservinc.com
>
> Browse or Search Old Archives (2001-2004):
> http://www.mail-archive.com/proteledaforum@techservinc.com
>
> Browse or Search Current Archives (2004-Current):
> http://www.mail-archive.com/peda@techservinc.com
>