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I purchased DSO4202S on AliExpress 1.5 years ago
The oscilloscope served excellently.
Recently, symptoms have begun to appear:
When turned on, the display backlight blinks at intervals of about 1 second. All buttons are lit.
The oscilloscope does not load.
A few minutes later, the oscilloscope starts working normally.
Loading time is from 1 minute to 30 minutes ...
I disassembled the device and checked all supply voltages.
All voltages are normal.
I don't see any pulsations ...
Advise where to dig?
Should I write to the seller?
Where can we fix it (Novosibirsk)
Share your experience ....
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Post time 2022-1-5 16:22:38
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Post time 2022-1-5 16:45:26
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