On 2017-02-03 4:41 PM, Tony Duell wrote:
...And if you
don't have a schematic, you ring out the connections and draw
your own...
Given the number of times I've done that, I half-feel like
mentioning
a grandmother
and sucking eggs ;-)
More seriously, to draw out a useful schematic -- not just one that
shows what is
connected to what, but also groups related sections together, also
requres a good
understanding of the device, of what is likely to be going on, etc. In
other words that
brain comes in handy...
-tony
Without a doubt the brain is the most important tool..... in my day job
of providing advise on fixing equipment, not component level mind you,
you quickly learn who is equipped with this tool and who is not.
Paul.