Service manual Asus PG27A

Hey all. Does anyone have access to the service manual for the Asus PG27A 4k monitor? Problem I am having is that for very brief periods of time solid black blocks appear in semi random spots, maybe a frame or 2 at 60 hz, but its noticeable. Worse still, recently its just stopped working in even 1920x1080. Highest it will go on my pc and 2 different laptops is 1028*768. So its not dead just wonky. Would love to fix this as I spent a lot on it.

Thanks and Cheers