Hdmi keeps jumping off - Hannspree ST42DMSB 42 in. LCD TV

Main system control memory ic fault. Check and replace it. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/

Possible a Hardware related acceleration issue ...if you are trying to watch 1080 p then the buffer on the stick is not able to refresh each frame rate successfully.due to low ram....try choosing 720 instead.check hardware acceleration is ticked in its menu.
test the stick by switching hdmi slots too and reinserting if you only have one slot .i run a smart box and this eventually flickers with 1080 p yet it has 2gb ram.hope this helps.restarting usually helps.

I have a next book and on it has a app called HDMI switch well that keeps coming on and when it comes on my screen goes black and then it will have white lines running threw it or the screen jumps with white lines on it

Try changing the cord. It could be faulty. If that doesn't work there might be damage to the socket of the HDMI.

The set may require a hard reset to restore missing options or another connection (disconnect all and unplug set and or a box if used--for a while)

Don't know how many componenets you are trying yo run but, anything requiring video, Satellite receiver, dvd player, etc., should be hooked directly to tv using HDMI, component. or composite cables. HDMI garries audio and sound but your reciever doesn't care about the video and may not transfer it very well. Unless you are trying to jump HDMI jacks because you only have one HDMI in on your set. YOU shouldn't need any HDMI cables runnng to your receiver. All you should need is a digital optical cable from TV ouyput to receiver input.

Check the physical conenction of the HDMI cable.

I assume you are connecting a Dish Network receiver (model?) to your Sony TV with an HDMI cable. I also assume this happens daily. At a certain time (default 3AM but changeable) the Dish receiver (modern models) will reboot and the "screensaver" it normally outputs will be turned off for a minute or so. Some TVs, in obeying the rules for high definition connection (HDCP) will unlink their connection. Some are fussier than others and some will not automatically recover on power up. Since the Dish receiver must reboot to maintain its stability and then refresh its guide, you should be able to do this if the TV is turned off overnight.
If you still cannot get the connection maintained, I recommend that you connect with component cables--RGB+RW cables (the red-Y, the green Y=luminance, and blue-Y signals and audio right and left.) You may have to select a different input before turning the TV off, or maybe just changing source input will recover the one you want. I have no problems with my VIP722 receiver and my Samsung DLP TV. You might be able to get some more specific advice from the www.AVSforum.com message board for you TV.
-Ken

With a set that new, you should be able to return it for warranty exchange or at least warranty service. The internal logic is having a problem, the power module is not up to the task, or there are just simply a few defective parts inside. In any case, there is no reason for you to worry about this, this is the type of thing that is covered by warranty.

Try that first.

Keep us posted,
Dan

prolly the problem is the HDMI clabe, try changing your HDMI cables, reply back with deatils.
also try changing video modes.