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Author: Sead

DSO4202C Pass/Fail Test Failed

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Post time 2019-11-23 15:24:40 | Show all posts



The lastest firmware has been released to the Official website,please download and update.
http://www.hantek.com.cn/en/ProductDetail_3_4163.html


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 Author| Post time 2019-11-26 00:56:40 | Show all posts
Edited by Sead at 2019-11-26 00:57
wangshuang replied at 2019-11-23 15:24
The lastest firmware has been released to the Official website,please download and update.
http: ...

Many thanks.

I downloaded "dso4kc_func_hantek_dso_dso4202c_20191123.0.up" and performed firmware upgrade, but no improvements. The Pass/Fail Test delivers now 100% Fails. To me it seems like there is a strong internal amplitude modulation of input signal with a quite high frequency. This probably distorts input signal and causes amplitude instability. This is a hypothesis onlu, you will certainly know better what t is and how to resolve the problem. Looking forward to your quick reply.

Kind regards, Sead


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Post time 2019-11-28 13:46:38 | Show all posts
Sead replied at 2019-11-26 00:56
Many thanks.

I downloaded "dso4kc_func_hantek_dso_dso4202c_20191123.0.up" and performed firmware  ...

did you set the RULE, named "P/F Mask" in the second page of Pass/Fail function? Could you please show me a video on this question?

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 Author| Post time 2019-11-29 04:59:01 | Show all posts
Edited by Sead at 2019-11-29 05:01
wangshuang replied at 2019-11-28 13:46
did you set the RULE, named "P/F Mask" in the second page of Pass/Fail function? Could you please  ...

No, I did not set the RULE. Please find attached the movie.

Regards, Sead




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Post time 2019-12-12 15:33:15 | Show all posts
Sir, I'm sorry, engineer doesn't have a good solution to solve the problem of high frequency signal jitter for the time being.

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 Author| Post time 2019-12-13 01:03:38 | Show all posts
amy replied at 2019-12-12 15:33
Sir, I'm sorry, engineer doesn't have a good solution to solve the problem of high frequency signal  ...

Hello Amy,
Sorry to hear that. The Oscilloscope is new and with the valid guarantee.
What is your proposal? I expect that Hantek as a respectable company
that takes care of customers will replace this faulty unit.

Kind regards
Sead

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 Author| Post time 2019-12-29 06:08:26 | Show all posts
Hello there,
Please advice on how to proceede with the oscilloscope still being under the guarantee
and having the serious fault that you can not fix?

Best regards,
Sead

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 Author| Post time 2020-1-12 05:39:54 | Show all posts
Sead replied at 2019-12-29 06:08
Hello there,
Please advice on how to proceede with the oscilloscope still being under the guarantee
...

Still waiting for the proposl from Hantek but no luck.
I am very disappointed with a such irresponsible attitude
of Hantek towards the customers who are, after buying
the Hantek product, left without support.

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Post time 2020-1-18 16:26:45 | Show all posts
Sead replied at 2019-12-29 06:08
Hello there,
Please advice on how to proceede with the oscilloscope still being under the guarantee
...

If you can not fix it, you can send back to the factory, but you need to bear the round-trip postage. So what is the serious fault? We can help you try to solve it.

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 Author| Post time 2020-1-29 17:07:47 | Show all posts
wangshuang replied at 2020-1-18 16:26
If you can not fix it, you can send back to the factory, but you need to bear the round-trip posta ...

Thanks. It seems that this is the hardware fault. Could you please provide me full factory address and instructions on how to send the oscilloscope for repair?
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