Apple TV signal goes on and off on my TV HDMI source

I have exactly the same problem....would it be better to connect via the component leads?

Check the resolution of the Apple TV output and make sure it matches what your TV can handle.

This could also be a cable issue! I purchased a HDMI Monster cable along with my Apple TV, but my Samsung 32" TV says "Device not supported" when I connect with that cable. So I switched to the expensive Argon HDMI cable that I use for my DVD player, and everything works fine :-/

http://www.argonaudio.com/accessories/digitalinterconnects/5103h_hdmicable.htm

Pinocchio wrote:
This could also be a cable issue! ........

I'd be looking at the cable too. It sounds like an HDMI issue to me, does restarting the tv help when this occurs.

I just returned an Apple TV to the nearest store. After three days of troubleshooting, I figured out that the problem was a bad video card. It worked for less than a week, and I was constantly having problems that I couldn't nail down.

Rebooting sometimes worked; restoring video for a few minutes. Eventually I connected the Apple TV's component outputs directly to my tv (Sony Bravia KDL-52V5100), and that worked for about ten minutes; then it too started blinking on and off. The picture was visible, then not visible, then visible, then not visible...

While the component cables were directly connected to the tv I still had the HDMI cable connected through my receiver (Onkyo TX-SR507), and the loss of signal showed there as well. The Apple TV video output was failing.

I checked the HDMI cables by using them with my Blu-Ray player (Samsung BD-P3600). The cables (which I paid $0.22 for!) were not the problem. The signal from Blu-Ray player routed through the receiver to the tv with no problems. You can easily eliminate the cables as the issue by using them with a second HDMI device, taking the Apple TV out of the loop.

In the end; after consulting with Apple Support (Apple TV was less than 2 weeks old), we came to the conclusion that it was likely a bad video card. They set up an appointment at my nearest Apple Store, and I was able to get a replacement immediately, as their brief test showed, the video output was not functioning properly.

I got a new Apple TV and all is good. Solid signal, and no problems noted since yesterday (15 July) at 10pm.

The Belkin HDMI cable I bought from the Apple store in Maryland did not work. There was no signal on the TV. I took it and my Apple TV to the Virgin Megastore and hooked it all up to their TV sets without success. We tried the Monster cable and it worked fine.

I'll lay odds that you are using a Samsung TV.

If I'm right, try this:

Plug your Apple TV into the HDMI Input that is directly adjacent to the PC input (on my set, this is HDMI 2).
Go into the menu on your TV and change the name of the input to 'PC'.

Your TV will now work with Apple TV.

I'd lay the blame firmly at Samsung's door.

Just to say that I followed your instruction with succes. Thank you.

Easybourne wrote:
I'll lay odds that you are using a Samsung TV.

If I'm right, try this:

Plug your Apple TV into the HDMI Input that is directly adjacent to the PC input (on my set, this is HDMI 2).
Go into the menu on your TV and change the name of the input to 'PC'.

Your TV will now work with Apple TV.

I'd lay the blame firmly at Samsung's door.

although this may work for some samsung owners, i have a samsung and had no problems using appletv on HDMI1 with no need to change the name of it either.

Hi,
I have the flashing situation on my Samsung too. I have it in the HDMI output 2 , as you suggest. I went on my menu button on the TV remote, but I am confused as to how you change this HDMI output to PC.
Would you maybe have a chance to explain to me?

Thanks from Germany