I have a JVC LT-37X776, I have bought a blu ray player and it does not seem to recognise it on HDMI channel works through component but kind of defeats the point of buying a hd players if you are not going to view via hdmi. I also have a normal upscaling dvd player whihc plays fine through hdmi So i have no idea why it won't work.

Did you try changing the audio to 5.1 instead of 7.1 in the audio tracks of the blu Ray?

I'm assuming that your new blu-ray player only has an HDMI port and your TV does not. In that case, does your tv have a component cable output? This should be five plug-in ports (red, white, red, green, blue). Amazon sells an HDMI to component adapter that you can buy here: http://www.amazon.com/eForCity-538581-HDMI-Cable-5-Feet/dp/B005QWH4QA/ref=sr_1_1?ie=UTF8&qid=1382102257&sr=8-1&keywords=hdmi+to+component+cable

Replace the main board

You can't change the resolution on the television itself. You change the resolution on whatever you have connected to the television. Let's say it's a cable box or a blu ray player you've got connected to the television. First off you have to connect it to the television with a component (green, blue, red, white, red) cable or an hdmi cable. Then you make sure it is only connected to the television with either a component cable or an hdmi cable. This may sound ridiculous but there are some people that have their cable boxes and blu ray players connected to their televisions three different ways ( an hdmi cable, a composite cable, and a component cable) when they only need to have it connected one way.
Select the proper input on the television. Set the cable box or blu ray player's resolution to 1080i or 1080p (in the case of the blu ray player if it the tv will allow it).

do you have it hooked up via hdmi to a tv that has hdmi? also make sure you set the output for the dvd/blu ray player to the correct output your using (hdmi 1 or w/e not a passthru or input) also if your using component cables you may have to go to menu on the unit and select that as your outpput get back to me let me now if this helped

Hdmi or component

Your ps3 could be in component mode. You will have to hook it back up on component mode, and go to the ps3 menu and change the setting to hdmi.

Here is the manual:
http://www.hdtvsolutions.com/pdf/JVG%20HD52G56G.pdf

When using the HDMI connections you may have to tell the DVD to output to that port.  Also you may have to connect additional sound cables from the DVD output to the TV.

I have the PS3 and this TV and it works....Try this.

1. Turn ON TV
2. Connect HDMI from TV to PS3
3. Select the correct HDMI input on the TV for the PS3(important)
4.Turn OFF PS3 if it is ON.
5. hold [I/O] Power button on PS3
6. Wait about 5 second and you should get the "HDMI Detected" or some similar message.
7. Configure the HDMI output for the PS3

Also, If you set the PS3 to "auto" for hdmi, it may set the resolution to 1080i. You may want to deselect everthing but the 1080P.

i have had to replace the hdmi input board on these units to fix them.