Why does my Mintek Flat Panel TV say HDMI unsupported when i plug my apple tv into it?

SOURCE: HDMI Cable - No Sound L42WD22 RCA Flat Panel TV

No sound and a digital picture. i will assume you have no signal on analog rf cable. Thomson(RCA) have been having problem with these sets. The trouble stems from the digital cuircit board. We see alot of these. You used to get the digital board.. they are not availble.. so rca found the component on these that fail.. A VERY SMALL surface mounted fuse. With a lighted magnifer and some fine tip twezzers. we replace these fuses on these boards. Do you have any soldering experence..

SOURCE: akai lct42z6tm

I can confirm that replacing these 4 capacitors worked perfectly. I work in construction so i am not a technician or anything. I did not even have a solder iron. I have photos of the board if anyone would like to see them. Took me about a hour to replace the 4. I had to use (2)35volt & (2)50volt cause radio shack only had 2 of each and it works like a charm. This TV has been in storage for 6 months until i found this article on the problem. Cant say thanks enough!!!!!!!!!!

SOURCE: Sony HDTV flat - no picture with HDMI cable and Verizon FIOS box

Probably a handshake problem with the cable box. It is common for cable boxes to have HDMI handshake problems. Hook the box up using the component cables and you should be fine

SOURCE: No surround sound when attaching hdmi to TV

Try running the optical TOSLINK cable from the TV to the receiver. If the TV doen't have a digital optical output, then try going into the menu on your cable box and setting the audio output to the digital optical out. Also check your TV menu and make sure NETCOMMAND is diabled. Some of your newer HDTV have Netcommand that allows the TV to control other devices through the HDMI cable.

SOURCE: HDMI outlet seems to be bad/ no picture

u need a main signal board replacement