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Does this input work with a dvd player . If so replace the cable box. If not replace the main board on the tv. Also if this is an older tv that does not support 1080i you may have to connect box to av input and lower the resolution of the hdmi output.
Does anything else work on your TV through HDMI? If not, your TV needs a new main board. If so, does your PS3 work on any other set that has HDMI? If not, you PS3 is bad. If it does work, then it is a hand shaking issue between the two products that unless Sony has a firmware upgrade for, the two will not be compatible.
HDMI is a very buggy system, espicially with connecting computers. First off I would check the video output settings of your computer to ensure that HDMI is still active and that it is enabled for mirror monitor or double monitor.
First things first unplug and re-plug at every point. Power cycle the TV and the computer. If that doesnt work then remove the cable, power cycle both devices then re-plug...then move onto the next step.
If you are running windows XP or Vista, right click on the desktop, select "personalize" or "properties" then look at the display settings. There you can adjust the resolution, HDMI has some bandwidth issues with long cables and cheap cables. Try dropping the resolution of the HDMI output if you can't get a stable image.
If that doesn't help you may have to go into the settings of the graphics card, commonly refered to as "Advanced Settings" on XP.
If it still doesn't help get another HDMI source and test the TV, then get another display and test the computer.
i have samsung 22' lcd series 4 tv but i connected it with the dvd player via hdmi it shows mode not supported. but the same dvd works very well on another samsung lcd of same configuratition. please help me
Any HDMI cable manufactured in the last couple of years should all be HDMI 1.1 compliant, your problem is most likely the logic board in the TV itself or the HDMI connector on the logic board has a bad connection..
Have you tried hooking-up a standard DB15 VGA cable to the AKAI TV and your laptop?
If this works your problem is in the TV and will most likely have to be repaired to receive the HDMI signal since your Panasonic DVR and your laptop are not recognized by the HDMI input on the TV.
I'm thinking the Comcast DVR box maybe putting out weird HDMI signals and the TV can't translate it. I would call the Comcast people on this one.
In the meantime, I would try finding another source the uses a HDMI cable to rule out the TV as the problem. Basically, testing the TV to see if the problem still happens when you use something else than the Comcast box. Try a Blueray player, Playstation 3, or Xbox. Just something that uses a HDMI cable.
you have to first plug in the s-video before you use hdmi so you can set it to HDMI on your ps3 when you go to your setting. Then it should work. If you already did that and it still doesnt work its probably the HDMI cord
check your owners manual tv. my tv has 3 hdmi input.your tv manual will tell you which one to use. make sure you select the correct resolution. 1080p/720/480 etc. oh...make sure you have hdmi cables too