The Right Half Has Lines on the screen. what can i do to reboot my TV?

Based on the symptoms you described for your Hisense model 50h5c TV, it seems that there may be a hardware issue affecting the display. Without being able to diagnose the TV in person, it is challenging to pinpoint the exact parts that may need replacement. However, there are a few components that commonly contribute to display issues:
T-Con Board: The T-Con (Timing Control) board controls the timing and signals sent to the display panel. If there are issues with half of the screen or black screen with half lines, a malfunctioning T-Con board could be a potential culprit.
Display Panel: The display panel itself could be defective, causing the black screen or half-line issue. Unfortunately, replacing the display panel can be costly and often not cost-effective compared to purchasing a new TV.
Main Board: The main board handles various functions of the TV, including signal processing and overall control. In some cases, issues with the main board can cause display problems.

I hate to give you bad news but about 90% of the time horizontal lines come from a bad panel and if that's the case the set isn't worth fixing as a panel costs hundreds of dollars

I hate to give you bad news but I believe this will be a panel issue and it's not going to be fixable. You can try a different tcon board but I don't think it will help

Samsung HL-R6178W DLP TV half of screen goes black [Solved] - HDTV ...

www.tomsguide.com/forum/54431-4-samsung-r6178w-half-screen-black

Aug 28, 2013 - 36 posts - ‎24 authors
Samsung HL-R6178W DLP HDTV I just bought this tv used as is. Every once in a while, the right side of the screen goes black on all inputs. I have read ... As for the 1000 dollar price tag, that's totally bonkers. I found a web site ...Missing: ln52a580

HLR6768W - Right half of screen goes black - Forums - CNET

www.cnet.com > Forums > Samsung

CNETI have a 4 year old 67" Samsung DLP which has worked pretty well other than having... Over the past 6 months it's developed a new behavior where the right half of the screen goes completely black and stays that way until I power cycle the tv.Missing: ln52a580

Samsung LN52A580 Vertical Line Problems - YouTube

? 0:32
https://www.youtube.com/watch?v=eejE6O340EY
Aug 22, 2011 - Uploaded by Jonathan Polis
Samsung LN52A580 Vertical Line Problems ... This feature is not available right now. ... LED LCD TV FIX, How To For Samsung Double Image, Black Vertical Lines, ... Sanyo LCD with DistortedHalf Picture Lines Waves Distortion Distorted ... Samsung DLP Green screen / lines Repair HLR XX67 Series ...

lcd/led tv one side dark video screen display problem fix ...

? 2:28
https://www.youtube.com/watch?v=dYHPKxijz1A

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

If within guarantee, let shop repair. If in guarantee,to open will invalidate.

Hello
Check the smoothing capacitor to video output supply voltage, usually derived from any one winding of the LOT. It will come around 10uF350VDC to 47uF 350VDC range. If this capacitor is faulty, or gone less in capacitance with time, this type of fault will occur. Check the green volour output transistor on the video output card, can be located attached to the neck of the picture tube; for any loose soldering or leakage. OK.

The tv have a problems known as a tv convergence pictures problems,it is dead.Tv set have any colors lines like R,G,B mis alingnments,have colors shadows pictures or a 3D pictures look alike?Yes,than the tv set convergence board it is dead to causes all these pictures problems.The tv set convergence board must have to be repair like replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv set convergence board to solved the tv set covergence pictures problems.The tvs shops will cost u like $300-350 for parts and labors.

I had the same issue. I could get the tv to work intermittantly by pressing on the boards while playing. This points to bad solder joint, so I resoldered every molex plug connector, and it nows works like a charm.

there is a defected capacitor in the vertical circuit trouble shoot and replace. or if the vertical circuit is separate then replace the whole board.good luck