[sdiy] Schematic Symbol Question

[Chromatest J. Pantsmaker]

It's likely that the input is balanced mono.  So L+ and L- when a jack is
inserted, but both signals are grounded with no cable inserted.

Or, it's a stereo jack...

On Wed, Aug 5, 2020 at 4:55 PM Shawn Rakestraw <shawnrakestraw at gmail.com>
wrote:

> Not a complicated question here. I am pretty familiar with mono jacks in
> eurorack (thonkiconn). But I am looking at a schematic of a Mackie mixer
> and the line input jack looks like this. Obviously, I see the ground and
> also the ground is normalled to the two positions. The 2 positions is what
> is confusing me though. If it is a mono input, why is there 2 positions?
> Does one get grounded when a jack is inserted? Sorry, I feel like I am
> asking a stupid question. Thanks
>
> [image: image.png]
>
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