Hantek DSO5202P

Yleon

A few minutes after the onset, the rays of both channels go up. The button and knobs can not be installed in the center.

Yleon

I have a slightly different power supply

Yleon

The voltage does not practically change with the shift of the line up. Now the line is shifted immediately upwards and goes higher in 30 seconds. Can any capacitors have dried up?

Yleon

I have the first foot of the two IC, 4,95V. The board model is slightly different from yours DSO5000 Serial MB Ver1.01 2015/5/26

Yleon

The seller turned out to be dishonest and did not answer me. https://ru.aliexpress.com/store/612888?spm=2114.13010608.0.0.56nUn3
I was left alone with the oscilloscope. (  Maybe this error will say something.

Yleon

Hello Amy! I sent you 2 emails, but I did not receive a reply. Perhaps the letters did not reach. Please verify that the letters received.
Regards, Yuri