Oscilicope Channel 1 of ADK2 not working

[grkees]

I have the ADK 2 and the Oscilloscope Channel 1 is not working correctly. I went through the calibration process and channel 2 worked fine but consistently channel 1 was in different ranges of negative milivolts. When I swapped Terminal 1+ and 1- I got the correct values just inverted (measuring 5V would give -5V).

[attila]

Hi @grkees

Probably the ADG612 on C1 was damaged by high voltage.

If the device is in warranty, for replacement contact support.digilent@ni.com, specifying the Date of Purchase, Seller and Purchase Order/ Web order Number.

See the following for repair instructions: