Zero asembly

Moderator: flatmax

flatmax
Posts: 604
Joined: Sat Jul 23, 2016 11:39 pm

Re: Zero asembly

Post by flatmax » Fri Sep 22, 2017 8:45 pm

Hi there,

I think this is the polarity of the microphone. Assuming the case is GND, then you can see the "-" leg has traces to the case.
mic.jpg
Microhpone polarity.
mic.jpg (205.27 KiB) Viewed 2266 times
Please let me know if this works as expected.

thanks
Matt
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flatmax
Posts: 604
Joined: Sat Jul 23, 2016 11:39 pm

Re: Zero asembly

Post by flatmax » Fri Sep 22, 2017 8:46 pm

jimbob4334 wrote:
Thu Sep 21, 2017 11:05 am
Hi Rob
Should the RCA jacks be soldered or they should work fine without soldering?
I wouldn't trust the contact without soldering.

Matt
Checkout the next kickstarter campaign - the Ultra 2 : https://kck.st/2xwM3DL
Please review the Zero sound card on Amazon USA : https://www.amazon.com/dp/B075V1VNDD
---
Check out our new forum on github : https://github.com/Audio-Injector

flatmax
Posts: 604
Joined: Sat Jul 23, 2016 11:39 pm

Re: Zero asembly

Post by flatmax » Thu Oct 26, 2017 9:32 pm

I would connect it in reverse !
The case is connected to the ground - the bright green lines indicate the ground connections between the pad and the edge casing.
ppi0.mic.polarity.jpg
Audio injector zero mic polarity
ppi0.mic.polarity.jpg (235.43 KiB) Viewed 2182 times
Matt
Checkout the next kickstarter campaign - the Ultra 2 : https://kck.st/2xwM3DL
Please review the Zero sound card on Amazon USA : https://www.amazon.com/dp/B075V1VNDD
---
Check out our new forum on github : https://github.com/Audio-Injector

simonalia
Posts: 1
Joined: Wed Dec 20, 2017 9:57 pm
Contact:

Re: Zero asembly

Post by simonalia » Wed Dec 20, 2017 11:04 pm

It was the best among two and the asembly time seriously

johnelle
Posts: 1
Joined: Thu Dec 21, 2017 6:48 am

Re: Zero Assembly -- Connector Part no.?

Post by johnelle » Thu Dec 21, 2017 6:55 am

So while I am ordering the pots from Digi-key I would like to order the connectors so I can have connectors on both the "use pot" and "straight" locations.

Could you list the digi-key part no for the outboard connectors?

Also any particular recommendation from the 50 or so pots listed would be nice.

flatmax
Posts: 604
Joined: Sat Jul 23, 2016 11:39 pm

Re: Zero asembly

Post by flatmax » Mon Jan 15, 2018 8:42 pm

Regarding the pots, perhaps a 100k Ohm pot would work nicely, ganged (2 in the one package). I would try to select the ones with metal shafts if available and try to find plastic knobs because sometimes touching the metal gives noise.

Regarding the plastic connectors ... they are called jst xh.
Here are example male headers :
https://www.digikey.com.au/products/en/ ... ageSize=25

For the cable, you can also probably get that from digikey, or perhaps ebay. I did a search for jst xh 3 pin :
https://www.ebay.com.au/sch/i.html?_fro ... n&_sacat=0

Hope that helps.
Matt
Checkout the next kickstarter campaign - the Ultra 2 : https://kck.st/2xwM3DL
Please review the Zero sound card on Amazon USA : https://www.amazon.com/dp/B075V1VNDD
---
Check out our new forum on github : https://github.com/Audio-Injector

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