Can a disconnected iMac LCD thermal sensor cause a blank screen?
This happened in a 21.5 mid 2011 iMac.
I damaged the LCD thermal sensor socket in the logic board. Now the connector won’t stay in place. I know the missing thermal sensor should cause the fans to spin up (they do spin up after a while), but the screen is blank.
I connected an external monitor and it works fine, so it doesn’t seem to be a graphics or logic board issue. I replaced the LCD panel and the LED driver board with ones from a working iMac, to no effect.
Can the disconnected LCD thermal sensor cause this?
Update 2020/02/06, added pictures:
Broken thermal sensor socket: