Facing TV Problems? Ask a TV Technician.
Hello, my name is ***** ***** I'll assist you.
Please reply back here so I know you're online to get my messages and we can proceed to troubleshoot the problem.
Nice, have you tried to unplug TV power cord from wall outlet for 10 minutes to reset as first thing, replug back in and check if it helps to get HDMI inputs working again?
OK, working on it and get back to you in 10 minutes.
We need to try software/ settings related things first so please go to TV Menu then Setup and run First Time Setup to see if it enables the HDMI inputs.
Also check HDMI inputs are not skipped in input label menu of setup of TV menu as skip option will disable the input.
If above suggestions don't fix the issue then try to upgrade TV firmware by going to following Panasonic link..
If TV has already latest firmware or it doesn't fix the issue then I'm afraid it would be HDMI processor chip failure and main board (known as A Board) of TV will be replaced to resolve the problem, please check with following board supplier and ask when they can provide A board as currently it is out of stock.
or A board part number TXN/A1REUUS (TNPH0989UB) can be used to search to get price and stock info to order it. If you are not comfortable working on it yourself then you may please use following link to get list of TV repair shops in area which will help to get repair quote...
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