This is the same problem I have (the picture being cut off on the edges). On your computer, you need to change to a native display.
For instance, 1920x1080 usually cuts an inch off of all sides, but it's meant more for videos where a little cropping isn't a big deal; not general screen use.
I believe the reason this happens is because with those other resolutions, 1920x1080 for instance, they are not your laptop's "native resolution", so in order to avoid scaling and stretching the image (which would degrade quality) they show its exact size, point by point, which is bigger than the number of pixels on your TV display.
Some TVs, like mine, have a TV option called "100% scale" that forces the picture to exactly fit to the screen. But this causes stretching and distortion if the aspect ratio of your resolution and the TV's whole screen are different.
Try something like 1366x768 or 1360x768 (some have both, some have only one of those). You should be able to find one or two resolutions like this that show the entire screen with full sharp clarity. It may even look better than 1920x1080 depending on your computer; find the best one that shows sharpness.
Unhook the left ribbon cable going from the panel to the Tcon board if the green and purple lines stay then its the panel if they go away try a new board
It needs a video board replaced most likely. You can find by searching on google for your model. Might cost more than set is worth. Think about new model as they are really cheap in that small size.
Ive never heard of a set having 7 HDMI inputs...go to HDMI 1 and use that for your Roku device and all should work fine, nothing to adjust or set other than select the HDMI one input
you will after hard reset the tablet you will loose everything on the tablet
hold down the power button and the volume down button at the same time till some writing comes up
then go down with the volume down button and highlight wipe data
press power button to ok it
then go down to yes highlight yes press power button to ok it
then it will reset then go back to the writing go to reboot press power button to restart the tablet
Recuva and RePicvid are also free to recover photos. The best solution is to create a backup for the important photos to avoid loss again. https://www.gihosoft.com/free-photo-recovery.html
First, I doubt that the power supply and MB are "connected", so they likely lied to you. As far as parts go, you can get them on Ebay, probably for around bucks total for the power supply and MB. This is important, Just because the model number on the TV matches the model number on the part, it doesn't mean it is the right one...the manufacturers sometimes use different boards on the same TV's. So make sure you are looking at the numbers on the boards and that they match before you buy it. Honestly though, you never know what you are getting on ebay as far as used boards and power supplies go, by the time you pay for shipping ETC you are going to be probably 150 to 200 bucks into it...and it might not work, or it might work for a while then the used parts go out as well. Best Buy has a 43" sharp LCD TV, smart, built in Roku...for 269. You might be better off to spend the extra 50 to 100 bucks and just buy a new TV, and definitely better off buying a new TV than paying some scam artist 400 bucks to fix a TV. Either way, good luck!!
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main digital board.