u/Inside-Print9957

I bought a th585 off Facebook marketplace place, it worked fine and only had 1.4K hours on the lamp. It was very dirty so ended opening it up to clean all the fans as well as the panels. When I put it back together it powers on, fans turn on and the power light blinks green but then suddenly turns off after 1 minute without showing any image and goes back to standby mode. It was fully functional before dissemblely and I verified all the cables are securely plugged in. Anyone have any idea what might be going on or how to debug this?