Hantek DSO5202P not working properly

Alx · Post time 2016-10-11 14:34:01

The same signal. Pink is difference.

amy · Post time 2016-10-11 16:19:52

Edited by amy at 2016-10-11 16:31

Sir, if you used the probe to test, please use a non-metallic tool to adjust the trimmer capacitor of the probe for the fattest square wave being displayed on the oscilloscope.

In addition, replace a connecting line to try.

Alx · Post time 2016-10-11 17:10:47

Edited by Alx at 2016-10-11 17:17

Probes were adjusted in internal square wave(5V@1KHz) and shows right square wave. Only on 150Hz it shows wrong form of signal. And i switched probe from one channel to another - forms of signal didn't change.

amy · Post time 2016-10-13 09:19:38

Sir, please try to test other frequency signal, greater than or less than 1K.
Is there a similar problem?

Alx · Post time 2016-10-24 16:53:33

Just checked. The problem is only in Hz. In MHz and KHz it works fine.

amy · Post time 2016-10-26 10:31:02

Sir, could you solder?

Alx · Post time 2016-10-26 14:38:11

Do not understand what i should solder, could you explain?

amy · Post time 2016-10-26 16:29:43

Edited by amy at 2016-10-26 16:31

Alx replied at 2016-10-26 14:38
Do not understand what i should solder, could you explain?

You can try to replace a component (U100, AQY280SX).

Alx · Post time 2016-10-26 18:11:31

Edited by Alx at 2016-10-27 17:18

Could you give me links to datasheets for that components and places where i should replace it in scope?
I have found AQY280SX http://www.mouser.com/ds/2/316/panasonic_AQW,AQY280,282,284-347496.pdf is it correct?
Can't find what is U100.

amy · Post time 2016-11-8 11:05:55

Alx replied at 2016-10-26 18:11
Could you give me links to datasheets for that components and places where i should replace it in sc ...

Sir, please refer to the picture.

Hantek DSO5202P not working properly

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