Sony xbr55x850d power off and restart

[ThePotatoMan1248]

Okay so I got this TV really cheap knowing there was an issue The person said it'll randomly shut off and restart.

I've tried every troubleshooting step I found online turning off Wi-Fi factory reset even a new power supply cuz it's an external brick. And through my troubleshooting I have found out it seems to shut off more frequently if HDR is turned on I played something for a while and the screensaver was on that didn't have HDR and it seemed to be okay. Why is this and is there anything I can do to fix it. I'm assuming something's shorting out or overheating but I don't know. I'm moderately techie so I'm willing to go in and fix it if I need to It just depends on how complicated.