HDMI cables do not work on my AppleTV

i tried connecting my apple tv to my Marantz projector via HDMI cable, and its not finding it. it just says "signal not found." my component cables work just fine on it, but no-go on HDMI. and i know the HDMI cable works fine because i've used it on my PS3 and Xbox 360. i've read a few threads that talk about 1.3 or 2.0 HDMI cables, or using an HDMI switch, but before i spend money on either (which could possibly be expensive) i would rather know how to fix it. can anyone help me?

like i said, everything seems fine because my blu-ray and HD DVD players both work fine, and they use regular HDMI cables

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There is no HDMI support on iPad 1
You need to use one these
http://store.apple.com/us/product/MC748ZM/A/apple-composite-av-cable?fnode=3a
OR
http://www.amazon.com/EZOPower-Component-Micro-USB-iPhone-Classic/dp/B008FHK75S/ ref=sr_1_10?ie=UTF8&qid=1373689248&sr=8-10&keywords=Apple+iPad+component+AV+cabl e
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Macbook Pro 2011 DVI HDMI out does not work with TV when the power cable is connected

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My Lightning to USB Cables can not work

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Hello. My 1st Generation Apple TV with HDMI cable does not turn on. Its a used model purchased on eBay. I've checked and ensured that the electrical plug works. Is there anyway to manually check to see if the unit turns on or do I have a defective uni

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Welcome to the Apple Community.
A good indication would be the status light to begin with, it should flash rapidly on start up and then settle down (assuming the status light is working-they have a habit of fading)
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Press and hold both the 'menu' and '+' on the Apple Remote for about 6 seconds.
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Pause a couple of seconds after each press for the Apple TV to accept your selection.
When Apple TV reaches an acceptable display resolution and “If you can see the Apple logo, select OK” appears on your TV screen, press 'select' .
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I can connect my macbook pro to my tv with a VGA cable no problem. When I try to connect it to my tv with and HDMI it does not work, any solutions? It flickers once when first connect it, looking like it recognizes it, then it doesn't.

I am having trouble getting my macbook to connect to my tv. When I connect my mac to the tv via VGA I have no problem. It detects it right away. I just purchased a HDMI cable because I didn't want to have to use speakers when connect to my TV and it will not detect the computer. The HDMI is a good cable because it connects our apple tv to the tv, so I know it works.
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Never mind, I solved it. Didn't know the converter needed a power source to operate (duh!) Now I have that, it works just fine.......

Apple TV 3.Gen with HDMI De-Embedder not working.

Hi
I'm having an issue with not getting a picture with the 3.gen Apple TV using a De-Embedder.
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HengDykk wrote:
Hi
I'm having an issue with not getting a picture with the 3.gen Apple TV using a De-Embedder.
Here is the lineup: Apple TV 3.gen --> HDMI Cable --> Cypress Clux-11CD --> HDMI-DVI cable --> Nec NP-510W
With this lineup we get sound from the De-Embedder through the two RCA/Phono outputs put no picture to the projector. The Projector says "out of range" regardless of any resolution chosen in the Apple TV 3.gen settings. When removing the De-Embedder we get the picture back. So we thought that the De-Embedder was the problem. But when using the same lineup with a 2.gen Apple TV we get both picture and sound. So we quickly concluded that there must be something with the 3.gen Apple TV. The strange thing is that the Boot up picture displays on the projector, but when it changes from boot to the GUI the picture fails to show. Only sound is heard.
I would try the following (in order):
Check video output settings to make sure the format of the digital signal is compatible with your projector. Also try the 'Auto' settings on AppleTV>Video/Audio after it's booted up (you will need to connect the AppleTV so you can see an image to adjust the settings. Otherwise connect your Mac computer to it via the USB connector.
Check your setting if any on the intermediate device for the same video and/or passthrough settings. The Apple TV older styles were limited to 720p video and so the de-embedder may not work with higher rate 1080i or 1080p devices (an upgrade may be needed to it).
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Update all devices (Cypress, NEC, Apple TV) to latest versions.

Optical cable does not work in Apple TV Software v4.2

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Before I upgraded 4.2, I could hear audio from optical cable and could see video from HDMI.
In my case, my display can play audio with HDMI, but I prefer to using optical cable for home theater system. Therefore I usually set the volume 0 on the display.
However, after the upgrade, the audio did not come from optical cable but only from HDMI as ususal.
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- Reboot AppleTV
- Reset AppleTV
- Restore AppleTV
- Reconnect optical cable and HDMI cable
- Restart my audio system.
- Restart my display
Does anyone have similar situation after upgrading 4.2?
Message was edited by: hiromalon

I KNOW! haha, I hate how simplified the Linksys Smart Wi-Fi service is.. I hope that Cisco would enable advanced settings in their next firmware upgrade for advanced users..
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I just ran a software update for Java and MacBook Pro SMC, now my Mini Display Port to HDMI TV is not working. The TV is flickering. The Mac Display is fine.

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HDMI cables do not work on my AppleTV

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