How do i use mdmi

The problem you are having is that you have two generations of electronics and are trying to make them work together. The RCA inputs/outputs to the home theater are ANALOG values, while the HDMI connections are DIGITAL. The two are not compatible. There are adapters that will do the job, but they vary in cost and quality of performance. A simple cable gender-swap won;t work, although there are shady sellers out there who will gladly sell such trash to you. Since you upgraded to digital TV, it may well be time to upgrade to digital audio as well.......

Try a reset to this TV; and check. There are two types of reset to TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight; will be better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

Check its input settings. Refer its user manual for details. Select the input as TV; and connect the external antenna; and check whether the TV receives any on-air signals. If not, its tuner is faulty. Contact any service technician to replace this part.
Electro help

Don't watch stuff you aren't supposed to watch in the first place.

You made a mistake, you lost your password. Learn from this, whenever you create a new password write it down where you can find it when you need to.

If you have an hdmi output in the back of your tower pc then you can just plug this into your telly to get your pc images on your telly. If you have an older monitor with a different type of connection then you will not be able to connect your pc to your telly.

Hope this helps

this is the exact model and drivers that yu need the paqe is in japanese but you can use bing to translate if necessary
http://121ware.com/psp/PA121/NECS_SUPPORT_SITE/CRM/s/WEBLIB_NECS_DID.PRODUCT_ID.FieldFormula.IScript_VDown_Id_Mod?prodId=PC-LR7008E

The Playstsaion vidoe resolution is too high for the TV to display, you need to lower the Playstation (see your owner manaual) it to the native resolution of the TV for it to work.
http://manuals.playstation.net/document/en/ps3/current/settings/videooutput.html

http://www.youtube.com/watch?v=JHQnpyIE7sE

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm

You can either buy a Graphics card with HDMI/DVI on or purchase a VGA to DVI adapter from most computer retailers.

~Plug the adapter into the TV and the cable from the PC to the Adapter.