The monitor is past warranty (was refurb model and this happened after 5 months of use) so I would like to see if I can fix it myself. The exact model is this one https://www.newegg.com/Product/Product.aspx?Item=N82E16824009769 (Acer XG270HU). The issue is as shown in the picture; A lot of vertical lines and noise appear shortly after connecting it to any pc (it does sometimes work for up to 5-15 minutes before the issue occurs). It happens on any device I connect it to and I have used multiple different inputs/cables (so I don’t think it’s my graphics card or any specific input/cable).
So what I need help with is narrowing down what is possibly causing the issue, and possible solutions for whatever the issue may be. I feel decently confident in being able to fix the problem if I know where/what to look for.
first step would be to pop the heatsink off that big IC/fpga and see if you can find a pinout or a datasheet for it, then see if any lines are shorting to it from the power supply, or if any of the color channels have failed open/closed