Hiya, I have a Samsung 46" LED TV Model number UA46 EH5000RXZN that will not turn on. There is no Standby light either. What could be the problem?

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Had the same thing with my LG, this is the advice I got : 'it sounds like power supply failure, which may be capacitors,'. Not had it done yet, so can't say more.

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/
http://electro-medical.blogspot.com/
Blinking codes details of many popular brand TVs are given. Surf the site with patience.
If blinks continue without any pause, the main board is faulty.

It seems there is no information in the manual here http://www.finluxdirect.com/content/ebiz/shop/resources/pdf/46S8030-T.pdf
So you may want to attempt to talk to their support. They have free on line chat here Finlux Direct Help Centre

Good Luck

I you have a standby light but TV is not turning on it most likely is Power supply problem. Capacitors most of the time, but aside caps there is a ``few`` more components that can cause the issue.
If you re not into electronic repairs i recommend a repair shop cause there are voltages that can BITE on a power board!

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.
https://homenol.blogspot.com/
https://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, [Exclude the model number] in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

The tv "LAMP"LED light indication flashes or stay lit?The tv projection lamp been in this tv like 1/2 or 2 years?Tv been on and used like 4 or 5 hours a day?Yes,than the tv projection lamp life are over.Require a new tv projection lamp.

Have you Check the Lamp Fan is it still running while Lamp trys to light?Ballast board is what powers Lamp on ,but if the Lamp Fan is defective Lamp will not light.

If the lamp has been replaced I would think the Lamp ballast would be most likliest followed by the color wheel and then the Digital board. You can get any part needed for your model at www.tvrepairworld.com just leave them a email they respond quickly.