Seiki tv with blue screen & not support or no signal but turning off & on it goes back to original screen
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory ResetF (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
SOURCE: TV was playing, then the screen turned black.
If the screen is black and you have sound then lightly press and shine a strong flashlight against the screen. If you see an image around the edge of the flashlight, an image is being 'displayed'. The problem is probably in the Inverter/CCFT or the power going to the Inverter.
SOURCE: HELP! KDFE55A20 watching TV and screen goes black and loses sound
Yes, its most probably lamp issue.
Please but original Sony lamp from Sony store and replace it in TV.
SOURCE: Screen goes black nafter start up. What can I do?
You probably have some bad buffer boards as well as a bad Y-main bd and or a bad X-Main bd. Have a trained samsung tech troubleshoot the set.
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