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Title: Hantek DSO5102P CH2 Failure (bis) [Print this page]

Author: ghs Time: 2018-6-11 09:08
Title: Hantek DSO5102P CH2 Failure (bis)
Hi,
My DSO5102P's second channel doesn't work anymore: it reads -104V from its generator, and -4.24V when I probed the ground. Self-calibration yields error code 0x10c00 and I can't return it... Could you tell me which parts I should replace, please?

Author: xfmrengr71 Time: 2018-6-15 09:16
I use my DSO very little, it might have 10 hours on it. A few months ago, I turned it on and it booted up. Several minutes later, the screen went dead and unit was unresponsive. After many failed attempts, I stopped trying. I tried again several months later and I got it to boot up and then after a few minutes it is unresponsive again. The following lights/buttons are on and unresponsive: Green light to the left of V0, CH1 Menu, Math Menu, CH2 Menu, Auto Set and Run/Stop. Screen is totally blank and fan is running. I have checked all the voltages out of the power supply and the only voltage that seems out of whack is the +9 volt as it is at 6.53 volts. This feeds a 5V regulator and the output is 5.0 volts.

Thanks

Author: xfmrengr71 Time: 2018-6-15 09:17
Sorry about my post, but half this website is in Chinese and I cannot post. If someone could post for me, I would appreciate it. I have a Hantek DSO5102B. Thanks

Author: amy Time: 2018-7-2 10:35

Sir, sorry, we do not see the motherboard, we can not judge the specific problems.

Author: amy Time: 2018-7-2 10:38

xfmrengr71 replied at 2018-6-15 09:16
I use my DSO very little, it might have 10 hours on it. A few months ago, I turned it on and it boo ...

Sir, please take a picture of the power supply about the incorrect output point of the voltage.
And upload it to study.

Author: ghs Time: 2018-11-6 04:20

amy replied at 2018-7-2 10:35
Sir, sorry, we do not see the motherboard, we can not judge the specific problems.

Hello,
Here are the picture I' finally took: https://drive.google.com/drive/f ... g9Y8G8FG6K-vlRbr2ps. It looks like I've fried a relay...

Author: amy Time: 2018-12-7 16:26

ghs replied at 2018-11-6 04:20
Hello,
Here are the picture I' finally took: https://drive.google.com/drive/folders/1IJgUFAzSsgiO_ ...

"it reads -104V from its generator, and -4.24V when I probed the ground."
The voltage is the measurement maximum voltage of the scope?

Author: ghs Time: 2018-12-19 23:29
It's the average, as you can see on gen_ch2.jpg and zero_ch2.jpg.

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