My Panasonic PT-52LCX65 works fine with Composite and Component inputs, but my two HDMI ports no longer work. The TV seems to work fine displaying the HDMI setup, but no picture from Cable Box, Playstation 3, or DVD Player with HDMI connections.
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Re: HDMI Signal gone
The HDMI interface may have suffered a malfunction, this offten happens due to stray voltages on the ground plane. If you do not have electronics experience I would suggest taking the set to the shop and having it repaired
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Your TV should automatically switch to 1080i if the source input is in 1080i format. Also, since your TV does not have HDMI, you must use the component 1 or 2 inputs (using component cables) for 1080i source material. You cannot get 1080i from composite or s-video inputs. You should be able to switch to the component inputs using the remote or the front control panel using TV/Video button.
try different type inputs on your TV- HDMI, component, composite
then look in the menu of your DVD player- with no disc in it- find "setup menu" then find "video output format"- select the one you are using on the TV, the options will be HDMI, YpBpr (component) , video out (composite)
RCA Authorized service tech looked at it. He determined that the DM Module need to be replaced. The part alone costs $550 + labor. Since the HDMI and component video inputs seem to work, he suggested buying a VCR DVD combo with HDMI output which would be far less than repairing the tv itself. I'n researching the possibility of purchasing the part myself.
try 2 things, first use the rgb cables or video (yellow) cable and plug it into the tv using one of the imports..(vid 1,2,3 etc...) and see if that works. then check to see if you get a picture by not using the cable box, by pass it and connect it connect it in the uhv channel. also make sure you have it on the right input of the tv (meaning scroll through the input button on your remote to find the picture...i've done this a million times). still no picture try your dvd player input and if you have a vhs input see if that works. if it is the hdmi input...to be honest it's expensive and a pain to replace...
Have a sears technician come over ,call them and set up an appointment, they are the best techs out there for tv issues, they will come out even if you did not buy the tv from them. Most of the Sears tv techs come from Philips which closed down their tech shop a while back.
It sounds like you have dirty or faulty fans on your board. please advice.