Miniware DSO213

DSO213/DS213 is a "quad channel" pocket oscilloscope from Miniware. It is a great starting oscilloscope and as it is battery powered, it is floating compared to mains earth, so it is in some cases usable as a differential probe.

Doesn't power on

Problem	Solution
Doesn't power on via battery, only from USB. Draws 50mA from the battery even when powered off	Replace the battery charging chip, CE3150AM, marked as U16 The device is fully functional when powered from USB regardless of this chip