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I will need the model number found on the back of the set please?
Have you tried hooking up other devices into the hdmi ports that dont work besides the one that definetly wont?
How old is the set please?
OK sorry I just noticed hdmi 3 is working so I guess this clears this up as the devices you hook in their hdmi 3 are working here but not in the others....
The mainboard is fried i'm afraid you need to change it, you will need to get the part number off the barcode sticker on the board as their are different types, do you think you can do this?
I never received any other reply as you can see above from you I asked if you was capable of doing this yourself then nothing? their is no cheaper route i'm afraid the mainboard needs changing
Let me know if you need more info
Many Thanks for accept/feedback