20 Most Recent Samsung LN-T5271F 52 in. LCD Television Questions & Answers

This LCD might have a defective power supply. I would suggest to open the back cover and inspect the power supply for swelling/bulging capacitors that are located near CN801. Check the following link to find the power supply: http://www.shopjimmy.com/samsung-bn44-00184a-power-supply-unit.htm

What is a capasitor?

Join forums you need to register you will get help sorry i can not mention names search for electronics forums

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Not sure if this will help, but most caps fail with the in rush of power, over and over. Sounds like they were not made right. You might try a UPS ( uninterrupted Power Supply) this may help you with dirty power from your power company. And with high spikes. Make sure you get one that will handle the TV current draw. As far as upping the CAPs keep the same or slightly high voltage and increase in uf. You might find one that has the same uf and a higher voltage rating that will handle it.

Televisions of Samsung have lots of problems when there areTaiwan capacitors of bad quality insite the mainpowerboard . Replace all the TAIWAN made capacitors much are blowup (they are not flat on the top but little round Lelon Teapo and or other green or blue capacitors around 10 V change for 16 V type and 25 v for 35 or 50V type and also all the 3 watt resistors in the powerboard of this chassis.

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter". http://electronicshelponline.blogspot.com/ Screen-shots to defective LCD are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent.

You have a power supply problem. Changing four capicitors that look opened up should fix it

Sounds like a T'Con board fault. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window. Screen-shots to defective LCDs are given in details. You can compare it with to that of yours' and can make sure about the fault.

The backlight power supply has probably failed.

Find a tech in your area to service it

If the tv has more than one input, you should try switching to the other one. If it has another output(s), you should try the other output(s).

Is it all the HDMI ports or just one?

Do you have a picture? Sounds like a failing LCD panel

There are sites on the internet,Where you can download a manual for no charge,

check the power supply for capacitors that the top bulged up and replace them. this is a common problem.