Panasonic TH-42PX60U HDMI stopped working

Try a different HDMI cable first into all ports. Try every HDMI cable you have. Then try a different component into TV HDMI ports. If you are using the receiver to switch inputs, try running HDMI cable straight into TV. HDMI is very finicky. Some cables won't work or stop working for no apparent reason.

Sounds like you have a bad input board and it is only time before you lose three. If it is under warranty get it in otherwise start tracking down the part. Most of these are a plug and play device once the tv is apart.

Using a box of some kind? try unplugging that and wait then plug back to see if the issue is the box. It will try to reboot.

Tries tv unplug replug it back like an hour later for a tv resetting itself.The HDMI (2) port might be working again.Just used the PS3 game system only conennected it in the different tv ports of for the HDMIS ports provided by the tv.U know this wright?The PS3 game system play all this funsctions.CD-Audio only,DVD movies and old PS1 games,some PS3 system may,may not support and play old PS2 games,All Blu Ray movies and All PS3 Blu Ray games.

Tries tv unplug,replug it back like about hour later.For the tv do a resetting itself,take out the tv HDMI cable out the old HDMI hub port try plug it into another tv HDMI hub port.Should work now,still have same problems,probally needed a new HDMI cable replacement,the old HDMI cable is worn out or shorted out.

Problem is with your ISP/Cable Company accepting the installation as one with HD clients, which while
not necessarily costing you more, must be specified to the cable box by your installer.

Make the call.

POSSBLE ' DG ' BOARD IS BAD NOT CHEAP!!!!!!!!!!!!!

are you using a PC to feed a signal or maybe a cable with an adapter?
I had the same issue when I used one of the rear HDMI ports to show a PC display. Apparently there is a software difference between the rear and side/front ports. Inputting the PC through the side HDMI port has solved the problem for me (so far!)

On a Panasonic TV the 10-blink error code can sometimes be caused by low voltage running through an HDMI cable, particularly from a Media PC or some video game consoles. Try disconnecting any HDMI cables and unplugging the Television for 30 seconds, then power it on without the cables attached.

If this works, connect the cables to the front panel (usually HDMI-3) which uses a different controller board.

First of all connect the Direct TV box to HDMI 2 and see if it works there. If it does then the next step is to connect the DVD player to HDMI and see if it wors there. If not then connect the DVD player to the TV using the component inputs and if the DVD player works on those. If it does then maybe the HDMI interface in the DVD player no longer works as it needs to communicate with the TV.