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.

amy

Sir, please check the voltage of the supply power.

Yleon

I have a slightly different power supply

amy

Sir, the supply power of yours is the newest.
Did you test the voltage after the line go up?
Please turn on the device and wait for a few minitues, when the line go up, please test the voltages again.

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?

amy

Please measure the voltages in the pictures.
Picture1: The first foot of the two IC, 5V.

Picture2: TP907, 12V. TP905, 5V.

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

amy

Sir, sorry to inform that we can't determine where the problem is.
Please contact your seller to return factory to repair.

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.

amy

Please send your serial number of your scope to my email(caiyijun@hantek.com). Thanks.