IC Encoder Test

This may be a dumb question, but is there a way to test an IC Encoder chip?

I have an original PS4 and it gives me the WLOD. I replaced the HDMI port, but that didnt fix the problem. I savaged an IC Encoder chip of another board, but it still doesn’t work. My concern is that maybe both chips were faulty. But i dont have another chip on hand. Just curious if theres a way i can test them to make sure they’re bad before i spend time and money buying a new one.