No sound on TV with hdmi cord

If your Sony Blu-Ray player and LG TV are recent models, each should have an HDMI cable connection. HDMI is an method to connect your digital video and audio devices with just a single combined cable. In the case of your LG TV, using an HDMI cable will allow you to send the HD video signal to your TV's screen, and allow you to hear the sound through the TV's speakers.
Your LG TV may have multiple HDMI connectors, to allow other devices to send signals to your TV, such as a cable box or satellite box or digital video recorder (DVR). Your Sony Blu-Ray player will usually have just a single HDMI connector.
Purchase an HDMI cable from your local electronics store. There are different versions of the HDMI specification, and you should get a cable that you can verify is certified for the HDMI version 1.4 specification.
Plug one end of the HDMI cable into the Blu-Ray player, and the other end into one of the HDMI connectors on the TV, noting which one you selected.
When you turn on your Sony Blu-Ray and your LG TV, you should use the remote for the LG TV to select the input source. Your LG remote should allow you to select the HDMI input connector you used, at which point you should see the display of a DVD playing on the Blu-Ray player. If you cannot hear the sound, use the LG remote to increase the TV volume.

I don't think you can hook a PS3 to 350W projector. You are maxing out the PS3 output. Good luck with it

How are you sending sound from the TV to the sound bar? Optical or red and white out?

maybe just an RGB video cable if all you want is a picture, or an HDMI cable (pricier) if you want an HD Picture AND sound from the TV. it looks like a USB jack but a USB plug won't fit it.

Sounds like your blue ray player is defective

tried to replace the cable then making sure no loose connection.

You need to get an HDMI cable and connect it to one of the open HDMI spots on the TV.

make sure you are using a highspeed HDMI cable to connect the laptop to the TV, then set your TV input to HDMI/digital. Then set your default playback device on the laptop to HDMI to make sure signal goes from the laptop video controller to the TV. hope this helps, feel free to rate how useful the info is to you

how do i hook up my hitachi tv to my hp laptop to get netflix?

You need a audio cable for sound. HDMI cable is only for picture. I use the comp 1 plugs myself, better picture. I found with my TV that the HDMI cable is only good if you have a digital box for it. You can also use the plug to hook your computer to off your graphics card and watch downloaded movies on.