Hi,

I've been troubleshooting a Dell U2518 that produces no picture yet the backlight is turned on, the PSU produces 19v, It is detected over HDM and its firmware could be upgraded over USB. So to me the controller board and PSU seems ([I]somewhat[/I]) functional.

There is however a ticking noise from the T-Con board to the left side of the RT6811 chip when power on ([I]not when off[/I]). Also the RT6811 chip gets quite hot ([I]cannot be touched for long[/I]) otherwise there is no physical sign of damage and everything around the board is neatly covered with plastics...