Model LC-C4677UN. Why does it keep turning off?

http://www.hdtvsolutions.com/pdf/manc.pdf

try to unplug it for 15 minutes, if tyhat does not fix it, yo can reset all funtion to default, that will take care of it

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/tony_a41fa0b801734e2f

I didn't look up the model to see if its a LCD or LED, if its an LED it sounds like you have some lamps going out, try turning down the backlight settings and see if that helps

Please check your capacitors for malfunction. Replace them if needed.
Regards

when i turn my 32 inch VIVIO plasma tv on it turns pff by itself. i want to know why this is happening

Sony KV-30HS420 TV shuts off, indicator light blinks 7 times

I have had exactly the same problem. Sounds daft but by not using the remote, and only using the power on/off switch on the TV itself, it is working perfectly...no idea why
Use the remore for changing programmes etc but not for on/off
Try it anyway because I know how annoying this is

Our tv sharp aquos LC 52 GD^U 52 in. HDTV LCD plays a narrative along with the closed captioning on selected channels, especially channel 2. We cannot get it to turn off and it is annoying to the point of wanting to return the tv. Please help.

Might be overheating and might need a firmware update. I'm guessing overheating.

Hi, I had the "Ghost In The Machine". I tried out what I descibed in my original posting.
#1. I unplugged The Set.
#2. I pushed in and held in the power button in for about 5 minutes before bedtime. ( The PC trick I learned) I gave it 5 minutes because a tv set has much more power inside it.
#3. I again pushed in and held the power button in again for 3 minutes the next morning.
#4. I plugged the tv in again. The red standby light was lit. The set did not immeadiatly come on when I tried to power it up.
#5. 5 Minutes later I returned and hit the power button on the remote and it came on like nothing ever was wrong.
#6. It has been fine now for 3 days!!! Powers up when commanded and shuts down like normal. It has yet to come back on or act up as it was doing.
I will keep a watch on it and if it starts up acting again I will repost. I hope this information will be of use to anyone who experienced the same problem. It didn't cost a dime, just some patience. Thanks for a forum that people can exchange information and save trouble and money unless all options are exhausted. Bill