Chosen Solution
I have a un85hu8550. Even though the TV recognizes that an HDMI is plugged into each of the 4 ports I still get no signal. I’ve by passed my receiver, reset the TV, updated firmware, left it unplugged all night. Still nothing. Funny thing is I was using HDMI 3 last night playing PS4 and now I have nothing. Any ideas? Menu works fine, Smart Hub and all that work fine.
Hi @E.M. Have you checked if the TV has the latest firmware Ver.1290.4 installed? Also being only 9 months old it is still covered by the manufacturer’s warranty. Get it fixed or replaced under warranty.
All of the HDMI ports are controlled by a single control IC. It sounds like some portions of the controller are working as expected (it can recognize that something is there). However, the controller is not passing along an actual signal. This can happen due to a number of reasons, most of which are internal to the IC. This unit need to go to a repair shop to have the IC changed. The other alternative is to swap out the main board that has the HDMI inputs on it. Dan
I would try replacing the hdmi cable first
