Z-Uno Full electronic diagram

Discussion about Z-Uno product. Visit http://z-uno.z-wave.me for more details.
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fredfit
Posts: 22
Joined: 17 Jun 2020 12:50

Z-Uno Full electronic diagram

Post by fredfit »

Hi all,
Is there a full electronic diagram of the Z-Uno available somewhere ?
I'm trying to find the value of C13 which is the very small SMD capacitor close to the antenna.
I unfortunately removed it accidentely while desoldering the antenna and I lost it.
Thanks !
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PoltoS
Posts: 7565
Joined: 26 Jan 2011 19:36

Re: Z-Uno Full electronic diagram

Post by PoltoS »

12 pF
fredfit
Posts: 22
Joined: 17 Jun 2020 12:50

Re: Z-Uno Full electronic diagram

Post by fredfit »

Thank you PoltoS.
Very low value for a capacitor. Is it a coupling capacitor between the antenna and the rest of the RF circuit ?
Can I replace it by just a short circuit ? Because it's very very tiny and it would be hard to solder an new one in place.
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PoltoS
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Joined: 26 Jan 2011 19:36

Re: Z-Uno Full electronic diagram

Post by PoltoS »

It is the antenna matching. If you use another value the matching will be wrong. Better not to use it rather than use 0 Ohm.
fredfit
Posts: 22
Joined: 17 Jun 2020 12:50

Re: Z-Uno Full electronic diagram

Post by fredfit »

Ok thanks
Just one last question: do you confirm the SMD size of 0402 ?
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PoltoS
Posts: 7565
Joined: 26 Jan 2011 19:36

Re: Z-Uno Full electronic diagram

Post by PoltoS »

Yes
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