ol Dho804 Oscilloscope, but there is a problem, I connect the attached power supply to the 220 v power source and turn it on but the display stays black and no boot to the operating system, What should I do?
Looks like the adapter provided doesn't have the right power option. I searched the manual and found the same requirements as anniel747 The supply they shipped you doesn't meet the manufacturer requirements.
I just bought a new Rig
