Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

NanoVNA V2 Forum

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Power slider broken


William W6WDS 2022/01/11 13:24

Oh NO!  The slider switch to turn on my NanoVNA-F V2 device has broken off ! ! !    Now I can't turn it on or off !

Wish it could have been made more durable.  Now my device is unusable.

Has this happened to others?  Any help or advice is appreciated.

Thanks, W6WDS-Bill

Toad Laurence 2022/01/12 15:13

Do not panic.

It is fairly straightforward to replace the power switch; much easier than replacing the jog switch (if yours has one). Carefully unsolder the old one and put in a new one.

Replacement switches are readily available on Ebay; they come with the piece sticking up of varying lengths, but you will need the shortest, otherwise it sticks too far up above the case and will get broken again. You can file down one which is too long.

I had to replace this switch on on my Saa2N.

Steve L



Sent from my iPad, complete with speeling mistakes

Walter Egenmaier 2022/01/12 14:33

Thank you Toad for that info...gives peace of mind when mine will
eventually break as well.
Walt

On Wed, Jan 12, 2022 at 9:13 AM Toad Laurence via groups.io <g7psz=
icloud.com@groups.io> wrote:

> Do not panic.
>
> It is fairly straightforward to replace the power switch; much easier than
> replacing the jog switch (if yours has one). Carefully unsolder the old one
> and put in a new one.
>
> Replacement switches are readily available on Ebay; they come with the
> piece sticking up of varying lengths, but you will need the shortest,
> otherwise it sticks too far up above the case and will get broken again.
> You can file down one which is too long.
>
> I had to replace this switch on on my Saa2N.
>
> Steve L
>
>
>
> , complete with speeling mistakes
>
> On 11 Jan 2022, at 21:24, William W6WDS <dv.ares.ec@outlook.com> wrote:
>
> Oh NO! The slider switch to turn on my NanoVNA-F V2 device has broken off
> ! ! ! Now I can't turn it on or off !
>
> Wish it could have been made more durable. Now my device is unusable.
>
> Has this happened to others? Any help or advice is appreciated.
>
> Thanks, W6WDS-Bill
>
>
>
>

--
Walter H. Egenmaier, O.D
EyeCare Consultants
Evansville, IN 47708
(812) 426-2020 Phone
(812) 426-2828 Fax
WB4ZUT
wegenmaier@gmail.com
http://www.eyecare-consultants.net

William W6WDS 2022/01/12 19:41

Thanks for the help.
I'll check it out on ebay.

William W6WDS 2022/01/13 08:25

I'm not sure how to get it apart to get to the switch.
Does it slide out of the case?
Any suggestions on how to do this without breaking anything further?

Thanks for the help 🙂
W6WDS-Bill

William W6WDS 2022/01/13 14:33

OK, upon further inspection, I think I got it now.

I took the screws out of both sides, and the board slid out of the case.

Now, I can see where to unsolder and resolder the new switch.  I found many switches on ebay.  If someone has done this before, can I get a recommendation for one that is appropriate?

Thanks

W6WDS-Bill

William W6WDS 2022/01/18 15:07

The model of the switch is K3-1280S-L1, the manufacturer is KRHRO, according to Sysjoint, the manufacturer of my Nano.

But haven't found an equivalent in USA yet.

Stephen Laurence 2022/01/19 09:02

I managed to buy the correct switch (pack of 5) at the first attempt.
Some sellers give dimensions in the listing. Get measurements from the old one. I think the actual switch is actually the smallest size readily available.
After I bought my switches, I found some identical ones on circuit boards in my scrap bin which I could have used!

Steve L G7PSZ

Sent from my iPad, complete with speeling mistakes

janina_van_de_eyken 2022/01/19 10:59

What about this one?

https://www.chipmall.com/product_detail/5017173.html ( https://www.chipmall.com/product_detail/5017173.html )

William W6WDS 2022/01/20 08:46

Great. But shipping charges are$30. Ugh.

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