JYE Tech Forum

I purchased another new mini unit and assembled it exactly the same way as the previous one. The only difference that I can think of is when I originally powered up the unit I did it via the Battery Input on the main board using 5 volts to power the unit, instead of using the usb power input on the ...

Hi. I recently purchased the new style DSO138 Mini DIY kit. I assembled and connected the base to the screen and booted it via the 5V USB plug, the buttons and switches work... except I don't see a trace on the screen, not even when using the test signal ring. Then I checked the voltage check points...