Utcomp disconnecting from USB when display is plugged in

[imaadhrizni]

Hi,

While testing the Utcomp on bench, I think it shorted a different wire. The unit is disconnected by the desktop software but when the display is plugged it gets disconnected. .

Any idea what could have gone wrong or if there's a way to check if I burnt the unit?

Regards,

[ArT]

Display gets power supply from the same source as power for buzzer, DS sensors and DigOutUser output. Maybe you have connected DigOutUser to other voltage source?

Please connect only power supply and ignition (pin A23, A24, A12), USB and display - is it working or there is the same effect?