[sdiy] Becoming better at understanding difficult analog schematics

[Ben Bradley]

I've studied many books on electronics. A good series of books is "The
encyclopedia of electronic circuits" - there's at least 7 volumes.
It's reproductions of "circuits and Ideas" type magazine articles from
EE Times and such, and most circuits have a good English description,
similar to Heathkit manuals which included both schematics and
"Circuit Description" sections, which I also recommend. Here's a link
to one I quickly found:
https://archive.org/details/isbn_9780070110779

Is there a specific schematic you have in mind? If you post it here we
should be able to help you with it.

There's a couple of schematics I've looked at and didn't manage to
figure out anything, the Yamaha CS-80 (it's huge anyway), it seems to
be mostly lines connecting everything. Likewise is the Technics SP-10
turntable, an older direct drive that uses a lot of discrete
transistors in the drive electronics. I can guess overall how it
works, but couldn't tell which groups of transistors did what. There's
a big thread on it at diyaudio.com and I've asked there, but I suspect
they don't want to admit they don't know how it works.

On Sat, 11 May 2024 at 19:44, Paulo Constantino via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> Hi all,
>
> I wanted to ask a question that has been on my mind lately.
>
> I consider myself a beginner in electronics.
> I know all the fundamental stuff, or how can I express it... I understand the landscape of electronics from a high point of view.
>
> However what gets me constantly is this...
> When I look at analog electronics schematics, specially big ones, they don't make sense to me, or at least not within the first few minutes of looking at them. I find that most schematics are highly "non-linear". By that I mean that there are feedback loops everywhere, many times from places in the schematics that are far away from each other.
>
> Schematics that are more linear flowing are easier for me because I can see the "blocks" and how they connect to each other. But many schematics are so non-linear and I find that difficult to understand.
>
> How to become better at this? If you are an experienced electronics engineer, can you yourself understand these "non-linear" schematics by just looking at them if you have not seen that type of circuit before?
>
> Thank you very much for reading this and responding if you can.
>
> Paulo
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