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Edited by serge73 at 2017-10-31 11:28
Good afternoon!
A year ago I purchased the DSO5202P. Used little. CH2 did not use for measurements. I took the oscilloscope off the shelf, blew out the dust , turned it on, and there's noise on Channel 2. Please help me fix it, it's not very convenient to work, the second channel always turns on after I click on AutoSet.
Return to Aliexpress is not possible.
Can this relay, as in many other malfunctions? On the video there is a moment when the noise disappears when the scan is 2V. At this point, the relay clicks.
Made a video. A copy of the screen with system information. See the link.
https://yadi.sk/d/G3cAAwtu3PDxPq
20mV without probe
2V without probe
5V without probe
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