If it was working fine before, you have changed Source or Input to an HDMI port, or Cable, Satellite, feed that is empty.

If it is new, read the manual. Page 24 refers

https://manualsbrain.com/en/manuals/253021/?page=24

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Samsung... | 17 views | 0 helpful votes

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Model UN60J6200AfXZA. Power Supply BN44-00775a. What are voltages for LEDs?

Check these sites. Power connector voltage details of many brand televisions are given in detail. Search the sites by type in the brand name to your set, in its search box on the right side.
http://electronicshelponline.blogspot.com/
https://elektrotricks.blogspot.com/
https://schematicscom.blogspot.com/

Samsung... | 17 views | 0 helpful votes

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Model UN60J620DAFXZA. Why did picture suddenly go blank?

There are many websites for you to find the ones you need to visit, but you should visit this website. I think you won't be disappointed. paper io 2

Samsung... | 20 views | 0 helpful votes

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I am having display issue with my Samsung TV UN46D9900WXFZA (3D TV). Please advise how to fix the issue.

If the screen is cracked then replace the screen.

Samsung... | 19 views | 0 helpful votes

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Model LN40B630N1FXZA. Why do I get chimes but no back light or image?

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
https://homenol.blogspot.com/
https://elektrotricks.blogspot.com/
Blinking codes details to many popular brand TVs are given. If blinks continue without any pause, the main board is faulty. Search the sites by type in the brand name to your set, in its search box on the right side.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location.

Samsung... | 16 views | 0 helpful votes

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Model UN46ES6820 Smart TV. Why doesn't it turn on?

If the power supply board is known to be good and not a defective replacement, it is likely the trouble is at the component level on another board.

Samsung... | 17 views | 0 helpful votes

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Model UN50H5203AFXZA Smart TV. 1- Won't turn on 2- Blinking red standby light 3- Flickering/blinking backlights What are the most likely problems and what fix do you recommend?

I would check the power supply first.

Samsung... | 19 views | 0 helpful votes

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Need schematic diagram for LJ44-00187A Samsung SMPS

Request the diagram from Samsung.

Samsung... | 28 views | 0 helpful votes

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Samsung tv with sound, no picture

Might be of 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/
https://elektrotricks.blogspot.com/
Check first the output from the power board to back-light inverter. If there is no voltage, of less voltage than specified, you should troubleshoot the power supply board [SMPS]

Samsung... | 14 views | 0 helpful votes

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DLP HL61A750A1FXZA. Why is it turning on and shutting off on its own?

Lots of issues with that model. Video and text help, but it is old technology and needs replacing.

https://www.google.com/search?q=DLP+HL61A750A1FXZA.+Why+is+it+turning+on+and+shutting+off

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Samsung... | 15 views | 0 helpful votes

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Samsung UN50H5203AFXZA: - Won't turn on - STANDBY LIGHT BLINKING - Backlights flickering What is the likely problem and what parts may I need to fix it? Best place to find needed parts?

This explains the best course of action and why.

https://www.fixya.com/support/r29790007-repairing_own_television

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Samsung... | 17 views | 0 helpful votes

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Model 40h5003 TV. Why does it have no picture?

Fault with its main 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/ .
https://elektrotricks.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Check and replace the damaged component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site by type in the brand name of your TV, at its search box at the right column...

Samsung... | 14 views | 0 helpful votes

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Samsung TV model LA26R71WD is it capable of receiving new Australian digital TV programmes using a set top box.

Absolutely, any TV is capable of receiving any TV channels from any TV receiver set top box.

Samsung... | 15 views | 0 helpful votes

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Samsung TV Model Code: UN65JU670DFXZA Version #: TS08 S/N 03PJ3CCH101685W just went dead, no power. Please advide. Thanks! Happy New Year!

Check the outlet with a device known to work. If it still doesn't work, have a read of this for the best advice.

https://www.fixya.com/support/r29790007-repairing_own_television

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Samsung... | 15 views | 0 helpful votes