[sdiy] Design Process

[Jerry Gray-Eskue]

<<What do you do when something just refuses to work?>>

Here are a few thoughts,

The first thing you might check : Is the concept valid, drawing a block
diagram of the major systems helps.
Is the proto circuit an exact match for your schematic (or block diagram)?
Can you point to existing designs that duplicates the block functions?
Are there any unexplained/mysterious sections in these blocks?
Are the basics checked out, a missing ground or power rail can make for very
strange behavior.
Are the bias and current levels inside the operating specs of the parts?
Is there a limitation in the parts you overlooked?
If parts do not seem to be working as expected review the data sheets for
something overlooked.

The block diagram is a big help here, if you can point to a single section
that is not working you know what to fix.
What is working in the design, and is it outputting what was expected at the
levels expected?
Sometimes redesign of a problem section fixes the issues.
Sometimes you take all the new results and do a complete redesign.

- Jerry

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl]On Behalf Of Ian Smith
Sent: Friday, February 12, 2010 8:24 AM
To: synth diy
Subject: [sdiy] Design Process



Hey all,

I'm hitting a variety of walls and want inspiration and
ideas from other crazy folk.

What are your design processes like?
 What do you do when something just refuses to work?

-Ian
_________________________________________________________________
Hotmail: Trusted email with powerful SPAM protection.
http://clk.atdmt.com/GBL/go/201469227/direct/01/
_______________________________________________
Synth-diy mailing list
Synth-diy at dropmix.xs4all.nl
http://dropmix.xs4all.nl/mailman/listinfo/synth-diy