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LCD turns off\on repair

I have the same problem with my LNT4665fx... Was told to open up and look at the power supply board ( the one on the left) and replace all the 10V 1000um capacitors with higher 25V or 35V 1000um capacitors. Only problems is I was told that there were 4 of these and I can only find one. All others are either 25V 1000um or 10V 2200um ones.... Does anyone have pics so i can see if im looking at the correct spot? Does anyone know if I should look into replacing the 2200um 10v capacitors as well with ones of higher voltage?

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You can also find this part for the Samsung LN-T4665F at:
http://www.partstore.com/PartSearch.aspx?PartNumber=BN44-00168B&x=19&y=10
If you have different TV do a search on the model number...

Posted on Sep 11, 2009

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The capacitors are located near the bottom right side heatsink if you check the link below. I'm sure a few of them might be bulging on top but you can replace the 2200uF/10v as well.
http://cgi.ebay.com.sg/POWER-SUPPLY-UNIT-BN44-00168B-from-SAMSUNG-LN-T4665FS_W0QQcmdZViewItemQQitemZ120424815286#ebayphotohosting

Posted on Jun 29, 2009

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Posted on Jan 02, 2017

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How To Repair LCD Monitor


The most common problems on Samsung LCD monitor/TV:
  • The power can not turn on, the red light flashing
  • the monitor on for a while and then turn off, then the red light flashing.
This is due to the weakening of the capacitor in the power supply module.
let's go hunting for bad capacitor.


I will explain how to:

  • Open the case of the LCD
basically in all LCD monitors have two circuit boards (power supply board and system board)
  • After you open you will see the two boards are
  • You see a board that has a socket for the power source. wrote that the board we're looking for (power supply board)
  • Remove all cables connected to the board and take out the board. (get noted before you unplug it)
  • Now you see it components on board, we looking for capacitor.(see picture below)
8644481.jpg
  • Looking for damaged capacitors, physically you will see a capacitor on the top like a bloated (see picture below)
a1611e3.jpg
  • Replace the damaged capacitor with the same value that you can see on the surface of the capacitor. (In this step you need any soldering tool)
My advice: replace capacitors with higher voltage, like 10V replace with 16V or 25V will be fine.

Have a Nice Repair :)

on Feb 12, 2010 | Computers & Internet

1 Answer

MY SAMSUNG TV LNT4665FX DIDN'T START PROPERLY AND TAKES 10 TO 15 MINUTES


I'm willing to bet you have faulty capacitors in the power supply. You can either have the individual capacitors replaced(cheap fix) or replace the power supply board. This is my best guest as this model is known for this problem. If you don't feel comfortable in opening up your set, get a professional to look it over

Nov 24, 2012 | Samsung Televison & Video

1 Answer

Samsung blown capacitors


Hello Chuck,

Before you replace the capacitors on the power supply board you need to check with Samsung. Your TV model falls under the class action lawsuit settlement and Samsung has agree to repair any TVs with faulty capacitors on the power supply board that were affected. You can get full details on the settlement here:

http://www.ccl-la.com/blog/index.php/samsung-has-reached-a-settlement-in-class-action-lawsuit-over-faulty-tv-power-supplies/

This settlement covers any listed unit for 18months starting Mar 2 2012.

BuddyMc

Jul 27, 2012 | Samsung LNT4665FX 48 in. LCD TV

1 Answer

Ive bought hisense lcd tv model number LCD2633AV at jeddah KSA last 2008, it was broke down last 2009 or one year after, totally out, no power no light, ive consulted a big repair shop here in the...


If you open the LCD from the back there are other power supply that might be compatible. If you have the part number I'll be more than happy to assist you. The number should be on the board.

Thanks

www.orlandolcd.com

Dec 11, 2010 | Hisense Televison & Video

1 Answer

I have a Samsung LNT4665FX/XAA version SX10 and isn't powering up. It's making a clicking sound for a half an hour and still no power. Can i troubleshoot this problem? How can it be fixed?


First of all stop trying to turn the tv on because you can damage a second board by repeatedly attempting to power the set up after a power supply failure. I have seen it on this model. Usually what happens to this set is the power supply filter capacitors fail. If you were to look at them you would see they are physically bulging. These capacitors are rated at 2200uf/10volts. They can be changed with a higher voltage capacitor to outlast the original components. If you choose to replace the entire power supply more than likely this will happen again in a few years. Anyone who can solder somewhat can replace these parts and repair the problem. A reasonable repair cost for this repair would be between 95-175 at a repair shop. Good luck, Russmann. You're welcome.

Nov 02, 2010 | Samsung LN-S4692D 46 in. LCD HDTV

2 Answers

Samsung lnt 4665fx/xaa lcd wont turnon just makes clicking sound


Sounds like the power supply board has failed, VERY common problem. You can call 1-800-samsung for the nearest service center.

Jan 22, 2010 | Televison & Video

1 Answer

Which Replacement Power Board for LNT4665F Samsung LCD TV?


Howdy,
It would be a lot cheaper if you just replace the two caps that have gone bad. Just get a cheap solder pencil from the store and about an inch of solder and you are in business.
The Power Supply Board is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Thaks for using FIXYA, BIG IRISH.

Dec 30, 2009 | Samsung LN-T4665F 46 in. LCD Television

1 Answer

Samsung LNT4665FX LCD-Clicks before coming on


Bad power relay get it fixed before you have more issues the psu cost around $25 bucks on ebay good luck!

Aug 15, 2009 | Samsung LN-T3253H 32 in. LCD Television

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