AJA KONA4 doesn't output V+K

Hello. I tried to output V+K using AJA KONA4.
When a TOP conect to VideoDeviceOut, framerate drops and output video signals are crush.
Could you tell me recommended parameter settings?

HP Z4 G4
Intel Xeon W-2125 CPU @4.00GHz 4.01GHz

windows10Pro ver1903
AJA driver 15.5.0

I think the problem is in your parameter settings.

Your Kon4 is set to 1080i.29.97 and you are using the External Reference In set in the ‘Reference Source’ parameter. So now it is expecting 29.97 but you have set parameter Signal Format = 1080i 59.94.

So the error in the node pop-up says “The card needs to have the same frame rate”, but your settings are not the same. Try chaning the Signal Format to match, of remove your external reference in just to test output.

I also noted Output Pixel Format = 8-bit + 8-bit Key, make sure you have a proper key before using this, or set it back to the default 8-bit.

Hello, Ben-san.
Thank you for checking my setting.
My KONA4 was evaluation device, so I returned it.
I’ll try your advice after buying it and reply again!