I have a RCA 52 inch HDTV ready tv connected to a HD digital cable reciever and a HDMI up converter dvd player. After tv has been on for one hour the picture becomes dark. I have to turn the tv off for 30 minutes for it to clear but then it becomes dark again.
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Ur RCA AV component cable set might bad replace it with another RCA set of cable or tv have HDMI and also DVD player too for HD connection by a HDMI cable through HD hub?Buy and used a HDMI cable connect tv and DVD player to together one HDMI cable for a better functions.
Do you have a High Definition cable/satellite reciever or a Blu-Ray player? Does your tv have a HDMI input or component or DVi or all of those? Most newer HD components use the HDMI connection. The HDMI connection is a single cable that has both video and digital audio together. The component connection is a connector with three rca jacks that are red, green, and blue. Audio is connected seperately with this connection via red and green rca audio jacks or a digital audio connector. The last is a DVi connector that is found on computers. Some older HD tvs and components use this connection. There are adapters available to turn a DVi connection into a HDMI connection. So if your TV does not have a HDMI connection but your HD reciever does you can use and adapter but you will not have any audio this way without using a seperate connector for the audio.
you will only be able to get digital surround( dolby digital ) from your dvd player( by the coax or optical digital connections ) , the rest will only be in virtual surround
from the dtv box plug the yellow video jack(RCA) into the vcr video input , then plug the audio jack or jacks into the audio input on the vcr. from the vcr hook the audio out to the audio in on the reciever( tv/vcr/sat... input ) , then also connect RF out from the VCR to RF in on the TV .
for the dvd player hook the "s-video out" to the "s-video in" on the tv , then the audio L and R on same s-video input , then send the audio out connection on tv to L and R input on reciever dvd L and R input , then you will need to connect the optical from the dvd player to the reciever or coax connections for the dolby digital on the reciever to work
More information is required to properly troubleshoot this problem. How is your television connected when you are watching HD? Do you have HDMI for this, do you have a satellite or digital cable box? For analogue are you using regular coax antenna (cable TV), or are you going through a cable or satellite box?
This could be related to the aspect ration setting. perhaps you ahve changed your aspect ratio from 16:9 to 4:3 or some other setting. If you are connected via HDMI, then the digital signal may be "normalizing" your picture during HD, but reverting back to the other setting.
Check you video settings very carefully. HD televisions are very difficult to tweak properly.
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.