A lightning strike took out HDMI1 port functionality and HDMI2 port still provides sound and a repeatedly intermittent picture signal.

Have you tried plugging the Firestick into HDMI 1? The Firestick has its own volume control on the remote... is that turned up? You can also press the up button (above the OK) in certain apps to increase volume. If that fails I would check sound settings in the firestick and select "passthrough", "bitstream" or "PCM" to see if it allows sound to your TV. Are you using the HDMI dongle with your Firestick? If so, you may want to plug in in without the dongle as sometimes these have issues.

That's because you have connected another device in HDMI1, the TV detects it as power on, and then change HDMI2 to HDMI1.

Try to power off the device in hdmi1, or you can even try to change HDMI2 to HDMI1 port ;)

main board fubar

depends on what you plug into on back of tv
is it a dvd player with a hdmi cable ?
or is it a tv antenna cable ?
or is it AV cable ?
The input select on the tv menu must be the same as the port you plugged the cable into

DTV = Digital Tv
AV1 = Av input 1 the yellow plug type cable red and white audio plugs
HDMI1 = HDMI1 port
HDMI2 = HDMI2 port
HDMI3 = HDMI3 port
HDMI4 = HDMI4 port

component in looks very similar to av in so if using av cables
use av1 in port rather than component in .

hey, when connect any aerial in the back of the TV make sure you have a look for the name of the connection you use ( Skart,ext1,ext2,usb,hdmi1, hdmi2 etc.) so you can do a search on that extension. if you connect something on Hdmi1 and search on hdmi2 you won't find anything. you have to search on Hdmi1. PS: good luck.

Your sound bar should have some sort of HDMI IN and HDMI OUT. This means that there are at least one place to plug a HDMI cable into the bar from either your dish or bluray player and then you take another HDMI cable and plug it into the port labeled HDMI OUT and this will plug into your TV either in HDMI1, HDMI2, or HDMI3 and then it will provide sound for the device. Unfortunately you didn't not list the item so I can not look it up to see if it can accept multiple devices so if it only has two HDMI ports then it can only support one device and you will have to manually change out devices through the HDMI IN port. Essentially the soundbar is just a pass though and takes the sound and sends the picture to the tv.

I am having a somewhat similar experience. The HDMI 2 is a little flaky on these TVs, try turning the input device that is attached to HDMI 1 OFF then reboot the TV. For some reason, if there is a signal going to both HDMI inputs at the same time there are major problems. I also found that if I input L/R audio into the HDMI 2 analog jacks, that sound also goes to HDMI 1(if no digital sound signal is going there).

Try first by using another port. Select HDMI2 and select proper "Input" from remote. If you get the same results, cheap HDMI cable. Replace it. If it is only on HDMI1, then there is a problem with the contacts. Warranty or just use HDMI2, 3 or 4 etc. Worse case senerio, you can use the 5 cable component cables as they can also carry HD signals.

Ur HDMI/1 might be shorted,will not work again.But u can tries unplug,replug the tv an hour later,let it reset it self back to factory setting.Who know might get lucky,it work again.

When power on and input set to hdmi1, there is no image appears