DSO2C15 froze after 2 hours

robinzon

DSO2C15 just arrived to me from aliexpress. After several switching on and off and two hours of working suddenly the traces from Ch1 and Ch2 disapear from the screen and the oscilloscope stop to response at button pressing. After switch off and on it boot up normaly until the graticule appear at display, both traces are not appear and buttons do not work. What to do with this?

robinzon

Davidalfa replied at 2022-10-1 15:40
Check your firmware version, that's usually the cause.
For 3000, update to 3102.
For 3200, update to ...

Now it ?s imposibile to check versions, but it was 3202

robinzon

Thanks to Davidalfa, my oscilloscope is working after resetting parameters as described at his second post. Reset take effect only after switch off/switch on. Think the trouble have happen after quickly switching sensitivity and/or SEC/DIV knobs. It would be better if such reset button will exist somewhere at the device.

robinzon

Thanks David for your assistance. I suppused, that record length is reduced with increasing number of used channels, but reducing the sample rate at 8 times at record length higher then 40 000 points - it is know how by hantek.