[PCB_FORUM] Re: Schematic drafting practices

Gentlemen,

teacher told me a hint when in 80's.

Schematic function like a map. 
should have enough info and direction to help the engineer or more down level 
to the technician for trouble shooting and testing.

keeping it as the basic principle. just drop a schematic to the new comer 
(fresh graduate ) and ask him to find some net/component or circuit function. 
If he can answer correctly or reasonable, that's a good schematic.
else, still have room to fine tune the design team.

Tks, Simon





At 3/27/09 11:17 AM-0500, you wrote:
>Hi Alan,
>
>> Some things that are very useful on the first page of the schematic:
>>
>> 1.  A table of contents specifying what functional sections are
>> on which page(s) of the schematic.
>
>And a block diagram.
>
>> 2.  A table of power/ground pins for all ICs on the schematic.
>
>I see no reason for that one these days.  What's your reason?  All
>power/ground pins should be shown on the components, and large devices have
>them on separate symbols, as we've discussed here.
>
>> 3.  A table of test points with signal names and page numbers
>> where they show up.
>
>I'm not sure I'd put that on the first page, but it isn't a bad idea to put
>that information in a table somewhere.
>
>Regards,
>
>Austin
>
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