When you turn the power on, the screen will come on for about 4 seconds, then screen will go blank. The screen never loses power.

The is due to ether a bad backlight or bad inverter that powers the back light on this TV.


Ether would need repair you can get the parts @ www.partstore.com

Hope this information helps please do click the accept button for my efforts.!


Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

helloFive blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

shaun

Sure sounds like it is losing power. First check the fuse and fuse holder. These companies are using really cheap fuse holders and they do not grab the fuse tightly, thye get hot and start to melt the fuse. Remove the fuse and look for signs of heat or flux running from the silver ends of the fuse. if you see signs of it being hot I would replace the fuse and fuse holder. Make sure ALL connections are tight and give it a try. I search long and hard to find fuse holders I like and can trust to do a long term repair. if you cant count on a part, the repair wont hold up and then Its MY reputation that suffers, Damn companies always choosing the cheap way out on making parts. When I started repairing Microwaves, a Home Microwave cost about 800.00 I see them sell at certain stores for 18.88!!!! how can you have good parts in there for 18.88?? Nobody makes things to last anymore. SAD!!! Fill The landfills and buy a new one. except the new one is Cheap Garbage!! Since it goes blank it sound like it is losing power. Always could be outlet you have it plugged into. Try different location first, on different breaker

It sounds like it is loseing signal, check your connections, and make sure you have the correct cable

check if the back lamps are still on when you lose image, all you have to do is get close to the screen and make is totally black and if is not that means you have a back light working, but if the back light is gone you may have a defective panel.

talked to samsung TA about the same problem I had and the recommend to replace the power supply first to confirm a defective panel because a panel is quite expensive

Sorry. Your screen dies.

Pull the battery and reinsert, you didn't lose anything. ;)

YOU NEED TO HAVE THE INVERTER BOARD REPLACED.
YOU CAN USUALLY FIN THEM ON E BAY OR YOU WILL HAVE TO TAKE IT IN IF YOU DON'T FEEL COMFORTABLE REPLACING IT YOURSELF.

the moniter may be having  some technical errors   maybe the IC's has got corrupt 

you need to call the seller of the moniter

Screen sound bad, or intermittent connection inside. You can find disassembly instructions on the net. Search with phone model and disassemble. Remove and reattach all cables in case one is lose or contact dirty.