Hantek 2d42 no oscillosocpe signal

achbart · Post time 2019-3-20 02:09:05

Edited by achbart at 2019-3-20 02:36

Hi there,
I was measuring a tube amplifier 120vac signal with the Hantek 2d42 wirelessly (no usb attached). I heard a buzz sound then the scope rebooted. No oscilloscope signal, but the AWG and DMM still work fine.

Would anyone have a clue what the problem could be?
Thanks.

amy · Post time 2019-3-30 08:36:27

From the current phenomenon, more than one component may burn out. Sorry, we can not accurately judge.

achbart · Post time 2019-3-28 22:46:20

achbart replied at 2019-3-28 22:00
Hi amy,
is there anywhere in Canada that I can return this for warranty. Shipping to China is cost p ...

Hi amy,
is there a location that the engineer would suggest to look for the 'burned out' components?

Thanks.

achbart · Post time 2019-3-28 22:00:13

Hi amy,
is there anywhere in Canada that I can return this for warranty. Shipping to China is cost prohibitive.

Thanks.

achbart · Post time 2019-3-28 01:37:26

ok thank you

amy · Post time 2019-3-27 14:26:03

Sir, our engineer analysis that maybe the protective component on the circuit is broken.
When you input high voltage, it will cause other components to burn out.
Please contact your seller to return factory for repair.

achbart · Post time 2019-3-25 04:18:25

Edited by achbart at 2019-3-25 04:20

achbart replied at 2019-3-20 22:04
Hi gf1 I only see a horizontal trace when I couple the inputs to ground.

Hi amy, thanks I'll try th ...

Hi guys,
So I tried resetting to defaults and it doesn't seem to fix it. When i move the channel to the top of the screen, then bring it back down, a ripply waveform follows it. As soon as I stop 'pulling' it down, it 'snaps' back to the top. I can do this with both channels.

Also when i push 'auto' i don't hear the relays clicking anymore.

I upgraded the firmware and fpga and it doesn't seem to make a difference.

I've uploaded a video of this happening.
https://youtu.be/JI2t0O2YhZ0

Thanks for you help.

amy · Post time 2019-3-22 11:52:10

Msangikihama22@gmail.com replied at 2019-3-21 05:30
Hi iwant what apps number iwant tusend multimete

Sorry, I can't understand what you mean.

Msangikihama22@gmail.com · Post time 2019-3-21 05:30:18

Hi iwant what apps number iwant tusend multimete

achbart · Post time 2019-3-20 22:04:28

Hi gf1 I only see a horizontal trace when I couple the inputs to ground.

Hi amy, thanks I'll try that tonight.

Thanks for the help everyone!