Not sure about ATV3, but on my ATV4 you can change the refresh rate of the video output between 50 and 60Hz - maybe you can try changing that?

And with a bit of googling I found this - you could try the technique in the second para and see if it cycles through to a setting that produces a stable picture.

On your Apple TV, go to Settings > Audio and Video and adjust the HDMI and display settings. Can’t go to Settings because of a blank screen? Then use your remote instead: 

• For Apple TV (4th generation), hold Menu and Volume Down for 5 seconds. Then your Apple TV switches to a new resolution every 20 seconds. Select OK to choose a resolution or Cancel to quit. 
• For Apple TV (2nd or 3rd generation), hold Menu and Up for 5 seconds. Then your Apple TV switches to a new resolution every 20 seconds. Select OK to choose a resolution or Cancel to quit. 

Hi Guy,

Many thanks for your prompt answer. I've tried to switch booth resolution and refresh rate with no joy so that does not seem to be the issue here. 

Regards, 

Emil

As an update to the above I have now purchased a Google Chromecast in order to rule out the ATV as the culprit. Unfortunately the problems still persist. If the ATV3 gave a flickering every two second or so the Chromecast gives me a crystal clear picture for half of a second and then just a picture which reminds about the “snowy” pictures you had on an old analogue tv where the antenna cable was not plugged in.

I’m prone to believe that there is some kind of handshake problem between the ATV3/Chromecast and the BV7 but I really can’t figure out why… The odd thing is also that my STB (Humax BXR HD+) works without issues. Haven’t tested with any blu-rayplayers or other HDMI equipped gadgets though so can’t say if they are also causing troubles.

Software levels of the TV are as follows. 

Type no.       9181

AP SW          09.90a

AP Boot        01.10a

IOP SW         23.00a

M2 SW         09.98a

Stat disp SW                      01.00a

STB table     05.42b

Proj table     01.00a

DSM SW       03.01a

HDTV adjustments in the customer service menu.

DTV signal   HDMI

HDCP mode HDMI

VGA H offset                      0

VHA V offset 0

HPP              On

YPbPr H offset 0

YPbPr V offset 0

If anyone has any clue why the BV does not show a solid picture of the ATV3/Chromecast or what can be done to solve the issue it would really be appreciated. As mentioned the seller had used it with an ATV2 without any issues. As the ATV2 is an older box could it  be that my BV is not up to date to accept a more recent box such as ATV3/Chromecast?

Best regards,

Normal 0 21 false false false SV JA X-NONE

Emil

Just tested with a Blu-ray player (Sony BDP-S6500) which works without problem... Can't understand why not an ATV3 or Chromecast?

Maybe this little device can help:

http://www.hdfury.com/product/dr-hdmi/

MM