Electronic Engineer Discuss

Title: DSO4202C Pass/Fail Test Failed [Print this page]

Author: Sead Time: 2019-10-17 00:57
Title: DSO4202C Pass/Fail Test Failed
Edited by Sead at 2019-10-17 00:58

Support needed!

The Pass/Fail test on my DSO4202C shows a large amount (more than. 90%) of the failed frames.

System Information:
Model: DSO4202C
SW Version3.50.0(190613.0)
HW Version: 1020xffffa001

I need solution for this issue.

Author: Sead Time: 2019-11-5 05:03
Can someone please advice me on how to contact Hantek Product Support?
I need urgently solution for pass/fail case as per above.
Thanks Sead

Author: amy Time: 2019-11-5 14:53
Please upload a video to study.

Author: Sead Time: 2019-11-6 18:47
Edited by Sead at 2019-11-6 18:53

amy replied at 2019-11-5 14:53
Please upload a video to study.

Thanks for your reply. Please instruct on what kind of video you expect.Kind Regards, Sead

Author: amy Time: 2019-11-7 16:40
Engineers want to see the dynamic video of waveform jitter.

Author: Sead Time: 2019-11-7 23:32
Edited by Sead at 2019-11-8 03:30

amy replied at 2019-11-7 16:40
Engineers want to see the dynamic video of waveform jitter.

Please find enclosed short movie. If you need longer sequences,
please provide upload link. Discuz! does not allow longer files than
1000 k.Kind Regards /Sead

Author: amy Time: 2019-11-9 10:26
Please give me the serial number of your scope.

Author: Sead Time: 2019-11-11 00:46

amy replied at 2019-11-9 10:26
Please give me the serial number of your scope.

Here you are:

T 1G/049 005857

Kind regards, Sead

Author: amy Time: 2019-11-14 16:12
Our engineer will try to modify, please wiat for some days.

Author: Sead Time: 2019-11-15 00:52

amy replied at 2019-11-14 16:12
Our engineer will try to modify, please wiat for some days.

Thanks for informing me. Looking
forward for a solution.

Kind regards,
Sead

Author: wangshuang Time: 2019-11-23 15:24

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

Author: Sead Time: 2019-11-26 00:56
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

Author: wangshuang Time: 2019-11-28 13:46

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?

Author: Sead Time: 2019-11-29 04:59
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

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

Author: Sead Time: 2019-12-13 01:03

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

Author: Sead Time: 2019-12-29 06:08
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

Author: Sead Time: 2020-1-12 05:39

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.

Author: wangshuang Time: 2020-1-18 16:26

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.

Author: Sead Time: 2020-1-29 17:07

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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