I had the same problem. I work for a mother board manufacturer w/offices in New Jersey and brought mine into our engineering lab after Samsung told me tough luck. Anyway, one of my engineers fixed it in 10 minutes. Essentially, he replaced the 1000uF capacitors on the power supply board with 2 cent capacitors instead of the 1 cent capacitors that had blown out on the CHEAP SAMSUNG POWER SUPPLY BOARD. You can tell the caps are blown via visual inspection. The top of the cap should be perfectly flat and a blown cap will be convex on top. Unfortunately, there are also 2500 uF caps by the same cheap manufacturer on the board as well and we don\'t stock that value for our products. According to my engineer, those will most likely blow next since he replaced the others with better caps, but I\'m getting samples of those and will replace them shortly. After that this piece of junk should last me at least another 2 yrs! It\'s been working for about a week now w/no problems. Hope this helps.
Thanks everyone for the helpful tips on the bad capacitors. I opened the back of my LNT4042HX and there were the bad capacitors plain as day CM806, 811, 812 & 817 plus i had 1 more bad one # 807 which the top was bulging, so i replaced all 5 with 1000uF 35v capacitors from Radio Shack. It took about an hour to do the entire job and my TV was up and running again. Or should I say turning off & on like its suppose to "With The Power Button" ;) Life is good once again :D
Anybody who has bought a Samsung LCD tv in the last few years and is having problems with it not turning on or making clicking noises when it tries to switch on can get it repaired for free by Samsung, even if it is out of warranty. Mine started to go wrong a couple of weeks ago. I had the clicking problems and also a green overcast on the screen. I called Samsung and it was repaired within 3 days free of charge. Call 01932 454358 Samsung. The engineer said the fault is because the wrong components were fitted to the televisions in the factory.
Had the same problem with my LA40R71BDX. After stumbling upon this thread (luckily) I've saved myself at least AU$500. The same capacitors described by everyone else (CM806, 811, 812 & 817) were bulging and two had black stains on the top. Replaced those with 1000uf 16v capacitors (as the 35v ones i'd prev bought were too big) screwed it all back together and presto! worked first go! Thanks to everyone on this page, you've been great! Oh and by the way, if you are thinking about doing this and haven't done ANYTHING like this before (i.e. Soldering, electrical work) I suggest you take the risk. I had no experience before this and it was a breeze. There is a youtube video on how to replace these exact caps on a 52 inch LCD samsung... Just search samsung tv repair. Thanks again!
Thanks guys, my Samsung LNT 4061 had the same problem, after 1 year and a half. I called Samsung and they told me that I was on my own (CANADA). After reading the Forum i bought the capacitors 7.25 dollars. replaced it and it is working again.
Same problem, clicking sounds...no picture on my beloved Samsung LCD tv. I opened it up, and sure enough, those same four capacitors were blown on mine as well (including the burn-mark on a nearby ribben). Uncanny. I've never dealt with this sort of thing before, but on close inspection ONLY these 4 capacitors were not flat on top, and three of them had black marks on them as well. Went to Radio Shack, bought the replacements described above, as well as a $8 solder iron kit (which came with solder as well) and in about 30 minutes had replaced all four capacitors. There are lots of helpful how-to YouTube videos on how to solder if you have never done it. My TV is back to perfect working order AND I learned how to solder. Not bad for a days work!
I had the same problem and found a board for 112 dollars shipped on the internet. Two days after I ordered the board the TV is on and working. The IP board # BN44-00134A for a LNS4501 samsung. I purchased it from partstore.com.
OMG!!! We just changed the 4 capacitors and it WORKS!!! No a hesitation, no problems at all. I\'m floored that this worked. It cost $6 t o fix!!! Screw Samsung and Best Buy for trying to get hundreds of dollars to fix this. As a quick note, I have never worked on anything electrical, and this was so easy. Check out this youtube video on how to fix. http://www.youtube.com/watch?v=8l0AUj8QUkg
I've just found a solution to everyone's problem!!!! Just like scores of you, my Samsung tv has the same fault...Go to Sale of Goods Act 1979 (as amended) Forget the 12month warranty....We have 6 years in which to claim replacement/refund; and it is the seller not the manufacturer who is liable..I've just sent my retailer the facts and hey presto instant reply to make things right...Go for it...good luck!xx.
My Samsung LN-T4061F TV was taking more than 2 minutes to power up while it power cycled several times. After it finally powered up, it would work fine. I called Samsung and they said it was related to the capacitor problem and that they would fix it for free. A repairman replaced five capacitors, two of which had popped the top . The repairman said that the problem was that since the capacitors were close to a heat sink, they needed to be rated for a higher temperature. The capacitors that he removed were rated for 105 degrees Celsius, but I didn't see the ratings on the replacement caps. He also said that the time limit for getting the repair for free was almost over, but I think the deadline depends on when you bought the TV. After the repair, the TV powers up in about 5 seconds and works like new.
I have a burned out capacitor as well; however, it has 2200 uf (10V) on it. It also has 115 degrees C as a rating. I'm nervous about buying different capacitors at Radio Shack...what should I do?
Also, I just noticed ONE capacitor that was bulged/burned; the others looked fine. Should I replace all the other capacitors as well?
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The problem with the SONIQ L32V11 A/B/C with built in or without DVD players is the Power Save mode.This will be from the Main PCB . The power supply/Inverter Pcd is not faulty. Can be fixed by just a small mod.Here is what you have to do go to CN 4 this is a plug with 4 wires from the Power supply to the main PCB. Look at the marking on the Power PCB says Adjust/ cable marked by xxx. Trace this to the main board .Cut the wire xxx close to the plug on the main board.( xxx ) now solder this direct to center Pin of the 3.3v Reg Ic . IC number U37. This mod will over ride the voltage change in power save mode.BINGO your TV will work as good as NEW. If not sure what to do go to my web site will be happy to help all you guys out and save land fill.www.viewclearvision.com.au
That problem is usually have 2 causes..Its either power supply board or main board..
Please take this steps on how to determine the problem: 1. Open the back cover. 2.
Check the power supply output...It should have 5vdc for the main
board..12vdc or 16vdc for the audio and 24vdc for the back-light
inverter.. 3. If those 3 voltage supplies have encountered voltage drop...The problem could be on power supply board.. 4. If the power supply output is normal..The problem could be on the main board... 5.
If the problem is power supply you should check if the capacitors
are bulged on the top and try to replaced it..If you can't do that you
can purchased new power supply board.. 6. If the problem is on
main board there is no D.I.Y repair on that so you need to buy a new
main board that fits to your TV.. Hope this solution will be helpful..
Samsung LA32A450 LCD TV wont power up or no power on lights that indicated that no power line.
First of all, check the power line, cable AC cord is it installed properly, change ac cord if necessary. If you experience with electrical tool such as Volt meter, try it to measure the ac voltage from power line. Or open your rear cover of unit, there are 2 board with difference color brown PCB (IP Board) and Greend PCB (main board). Check fuse on power board, if broken that may cause your problem. Change with the same type as labeled on it. But becareful, if after you change and try plug the power line in than broken again, thats mean power board have sort circuit. My suggestions, try steps above and if it file, change power PCB block. You can buy it on Samsung cervice center. Good luck.
Hi, Try my methode,
Open the rear cover, there 2 PCB board. SMPS board and Main board.
Check on SMPS board first, check capacitors on it, check if any capacitor like almost exploded. If you see that part, replace it with new and higher value (1000uF/16V to 1000uF/25V).
Or, unplug T-con cable ( cable from pcb main to Panel board). plug in ac cord and try to switch on your TV, if its working , that means panel has problem.
I hope that will help you.
If any problem with it, please send me a comment .
Hi. this is a common issue with many lcd sets. the failure can be found within your set. The part in particular will be the PCB main. The is commonly called the Power Control Board. it basically regulates the current that it receives form the inverter board. There is also a IP that incorporates the cooling devices as well like, the fan and heat sinks but, this is not affected at all. this issue you are experiencing is totally isolated within the PCB and, you will have to replace this board in order to restore this set to optimal performance. i have placed a picture of the damaged part that will need to be replaced.
Ok, you stated that you get a green for a second and then a couple of blinks and then, it turns off. This rules out the power board but, its main control partner is experiencing some trauma. Normally in the plasma TV set, the green is a go but, if the PCB(Power control board), doesn't agree, the the power board will shutdown the entire unit after giving a few blinks. Its very important to remember that, the power board and the power control board are two separatecircuit boards. In your case, the PCB is down and it will need to be replaced.
I had the same problem. I live in NJ and called the local authorized "service provide" listed on the Samsung website. What a joke. Quoted $350 just to show up, never showed up. So I opened my own TV. Took off the plastic back (10 screws) took off the large metal RF shield (12-14 screws) and noticed a blown component. The markings on the component were KL15L and it is apparently an NTC Thermistor. Obviously it got fried and not knowing if there was other damage I decided to set out to replace the entire Power PCB Board Assembly and not the component. There were two part numbers on the assembled board (BN97-00457E & BN94-00622E). After searching online I also found a suitable replacement number for these (BN96-04896A). I found two places who claimed to have the part or have it on order (shopjimmy.com and vancebaldwin.com). After placing orders with both and having neither come through, I broadened my search and found out that the LNR409D was basically the same model as my LNR408D so I looked for its Power PCB Board Assembly part number which turned out to be BN41-00521B. Google search for that part number showed the item available on ebay. I bought it a week ago (ebay 260311519904) for $144 plus $12 shipping. I removed the bad board an hour ago (6 screws about 7 connectors) installed the new one, plugged in the connectors, replaced the covers, plugged in the TV... AND IT WORKS!
Suggestion: If your TV is out of warranty then open it up (what have you got to lose) and see if the problem is obvious and maybe something you can fix (replace) yourself. The parts, spare boards, etc. are out there if you look.
Ok Fellas I found the Problem! The Problem is the V4 Y-Main Board.
This board is located on the left side of the case looking upright from
the back. I spoke with may suppliers, and Sanyo all confirming this.
Apparently it has been an issue for some time. Sanyo has replaced the
V4 Y Main board with a W1 Y main board in newer models. The W1 Board is
NOT compatible for us tho. Just to be sure... If your T.V is taken
apart (like mine) Disconnect the peripheral cable from the V4 Y Main,
and turn on the set. I bet it will power up with audio and channel
function just NO picture. When you plug the board back in... POOF set
shuts down. Replacement boards are VERY hard to come by. So Happy
42' HD V4 Y-MAIN PCB: LJ41-02760A LJ41-02761A LG92-01200A BN96-03352A
Oh yeah.. just FYI, Sanyo, Phillips, and Samsung all use the same parts. Hopefully that will help your searching.