20 Most Recent Samsung UN40EH5300 - 40" 5 Series LED-backlit LCD TV - UN40EH5300FXZA Questions & Answers

If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Hello. Repairing your own TV isn't something I recommend. You risk injury, and could cause more damage. If you still want to proceed, remove the back of the TV. Unplug the cable between the Main board (the one the inputs connect to) and the Power board (the one the AC cord plugs into). Then plug in the AC cord. If the backlights come on, you probably have a bad Main. If they don't, it's likely the panel, which is expensive.

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These 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/ Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

you will need to replace the leaky capacitors in the power supply circuit. You can locate the faulty capacitors with a visual check. Those that are bulging need to be replaced.

i need the model,but the problem is in the T-con board.

Most likely the power supply capacitors. you can identify them by their bulging tops.