Good morning, I have no hdmi sound or picture is it possible to repair this board? Thanks

The cable from the Direct TV box should go to the IN port on the receiver. The cable from the receiver OUT port should got to the TV.

Whatever board is connected to the HDMI ports is the decoder board, this can be the main board or a separate board.

Take them to a TV repair centre as they are complex to repair. You may find that your homeowner insurance will pay for the repairs if you can demonstrate that it was a power surge that damage them.

Make sure your video and sound cable is working (rca, hdmi cable etc) and your source component like dvd player or settop box is working. If cable is plug into a socket AV 3 or HDMI 3 for e. g. make sure the tv is source or input is selected the same like AV 3 etc.

It is possible for the TV to switch on or off but no picture or sound. This means the input board or tv tuner is faulty in which case you need a good tv repair technician

Check out the inverter board. It is responsible for the back lighting so you can see a picture.

Its certainly possible there may be something wrong with the port itself but first, I would try swapping out the hdmi cable itself to rule that out. It may also be the video board in the receiver. Can you get video out by using RCA cables instead of HDMI? Maybe try that first.

Definitely odd for sound to come through and not sound, especially via an HDMI connection.

I would contact LG for support, your TV could be defective.

Good luck

Yes ,you should replace the main board ,because you can'nt repair HDMI interface.
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If you are using HDMI sometimes an improper shutdown will cause the HDMI "Handshake" to get confused.Try going to the Crossbar (Menu) on the PS3 2nd coluom from the left and down to Display Settings. Choose the appropiate output settings and use AUTOMATIC whenever possible. After that Set your Audio again use AUTO. Never plug in HDMI cables when Power is on it can and will short out that Input!! Good Luck!

HDMI is suppose to carry sound. With the rest of the symptoms you describe, the first thing I would try is to replace that cable with a good quality one.