Last March of 2008 I was so excited to get my new Samsung LN-T4065F 40 inch LCD TV. The looks of the LCD set is awesome, watching it on High Def is just amazing. But it only took 1 year and 3 months for it to go bad(Yeah after my warranty expired. What a bummer!). The initial problem was when you turn on the device it takes awhile for it to come on. At first, I thought it was my Direct TV DVR that was causing the power up delay because every time when it come on the resolution of my TV goes from 1080i to 480i. But after few weeks the LCD TV gets worst, clicking starts to come in and TV turns on with this weird colored background and I just got tired of it and started searching about it over the internet. After that time, I am for sure of the problem and there’s an abundant of information about it over the internet.
Read about: Symptoms of an LCD Power Supply Problem

Swollen, Bulged, Bad Capacitor
The main cause of this power up problem are bad capacitors on your power supply. The image to your left shows that the middle capacitor is bulged or swollen and that’s how you can identify if the capacitor is bad. See more bad capacitor images Most of the post I have read online haven’t shown a capacitor that has leaked, but obviously that would be another indicator for a bad capacitor.
Now, if your LCD set is still under warranty I would suggest to use it and let the professionals handle the problem for you. But for the rest of the Samsung LCD TV owners that their warranty had expired and want to save some money, this would be the best route. Mind me, when I fixed my power supply I didn’t have any previous experience on desoldering and soldering capacitors on a power supply board. It was a good experience after all is said and done.
Here’s what you need for this DIY project: Screw driver, Soldering iron(40watts+), Desoldering braid, Soldering wire, and capacitors.
Now lets talk about the specs, capacitors hold 3 important value:
1. The capacitance measured in uF(micro farads) (ex. 2200uF), 2. Voltage (ex. 10v), 3. Temperature (ex. 105°C)
Important Notes:
Samsung’s power supply capacitors has 10v installed on the board and it is attached to a 12v bus which is causing to bulged. (I’m not a Electrical Engineer but I do know if you put too much on something, its going to get bigger or burst! ^_^ And that’s why our LCD sets end up with bulged or leaked capacitors)
Look at the bad capacitor and get the right information from it, remember uF, voltage and temperature. Mine, I only change 2 capacitors. It needed two 2200 uF, when I first saw my power supply it was really easy to spot the bad caps. Some Samsung LCD owners did went ahead replace all the capacitors on the power supply to make sure. Now if you’re like me, an inexperience solder, I would not recommend changing all the capacitors because to me it was time consuming for a noob(newbie) like me ^_^.
Few things to take note, always make sure you have the right polarity. Negative part is where the colored stripe on the capacitor. If your looking at the image above, it would be the copper colored stripe. And if you are looking at the two connector wire of the capacitor, the negative wire is the short one. On placing it on the board make sure negative to negative and positive to positive. By this time you will be ready for soldering.
How to Solder and Desolder (Youtube video) is pretty simple and it just need guts to do it
The total cost for this project is $40 (I had to buy a new soldering iron and desoldering braid) You can buy capacitors from radioshack but always remember uF, voltage and temperature(they are price from .40 cents to $5 each).
Here are the models that are known with this problem:
- Samsung LN-T##61F
- Samsung LN-T##65F
- Samsung LN-T##66F
- Samsung LN-T##71F
- Samsung LN-52A550P
- Samsung BN68-01024D
- Samsung LN40A630M1F (would not power up at all)
- Samsung LE40R88BD
- Samsung LN40A500
- Samsung LA40N81BD
- Samsung LN 26A450
- Samsung LA40R71BD
- Samsung LN-T4642H
- Samsung LN52A750R1F
(If you’re a Samsung LCD owner and have a different model number with the same problem, please let me know)
I just fixed my LCD set last night and all is working fine and turns on normally. Power up delay and the rainbow background is gone . I will update if there’s any other effect after installing that 2 capacitors. This post is based from my own experience fixing my own samsung LCD set.
I will not take any responsibility if something wrong happens to YOUR LCD set after reading and taking this advise from non-professional DIY fixer. USE THIS GUIDE WITH CAUTION!
See what Samsung has to say about this known problem with their LCD and Plasma TV sets.
Sources:
Fixing Samsung clicking sound on power up
Your Audio Visual Science Forum – Samsung LN-Txx61f/65f/66f



Same problem in model LE40S71, 4pcs 1000uF and two of them strted leaking. Original was 10V. Replaced with 16V.
TV was bought march 2007.
Thanks for the advice
Hei er det noen som kan gi noen typs om hvor je kan kjøpe konesator ?
Chriss, I just wanted to thank you for taking the time to research this issue and post such an informative, detailed solution. I performed the work on my parents TV last weekend and it is good as new. I ordered the caps off Amazon (ended up with 16V models) end they arrived in 2 days.
Thanks again!!
I have the Samsung LN-T4066F model and had the same problem as everyone else. I visited with the owner of a local tv repair shop who has had experience fixing this problem. He recommended using a higher volt — 50v or 35v. I went with the 35v (1000uf – 35v – 105 degrees). The de-soldering was the hardest part for me. Had to replace 4 capacitors. Took about an hour for the entire job and cost for 6 capacitors was $25.00. My tv fired right up and works great. Thanks for all posts.
Thanks for the article. I’m having exactly the same problem, but with a Samsung 226BW PC Monitor.
I’ll be giving this a go, much appreciated.
I am looking at purchasing a Sony 32 inch LCD Monitor KLV-32U100M that does not power on. Do you know if this issue occurs in newer models like these? Because if it does, I’m going to try and save some money by buying this unit and fixing it.
i have a samsung LE40S86BDX two and a half yeas old and we have the same power up problems and have been told that it can cost up to €400.00 and more what a rip-off so glad i found you guys / girls ,have taken the back of the TV and as you have described 4 x bulging capasitors 3 leaking
black stuff .have orderd the new capacitors at a cost of €6.00 includind P+P many thanks .
Great guys followed your advise to the letter replaced 4x 1000uf 10v with 25v and bingo samsung LE40S86BDX sprung to life wifes asleep in front of it and harmony has returnsd to our house …………..
and it only took about 20 mins from start to finnish .
Samsung Model# ln32A330J1D manufactured in july 2008 had a bad capacitor on the powersupply. Thanks for the information.
I have a samsung plasma that is having the same problem O was about to try the soldering trick when I discovered that non of the capacitors are bulging. WHat else could this be?
THe model is PN50A550. Purchased in September of 2008
Had same issue with LNT4053. Replaced 4 bulging capacitors. 2 of them were leaking.
Thanks for the advice.
My LNT5271f is having the clicking problem. Right now it takes my TV 10 minutes to turn on. Once on, the TV works fine with no picture issues. This issue started to happen about 2 months after the warranty expired. Someone else I know who has the exact same TV just had this problem start to happen. His tv is just under 2 years old. I’m never buying another Samsung product.
I just ordered two 25v 1000uF 105c for my LN750 and still waiting for them. I just ordred the capacitors with the same exact specs. Should I have gotten a higher voltage? Or should this work, atleast for awile anyway. Afterall it took 7 months to blow in the first place. Also bought the 3.15 and 6.3 A fuses just in case.
25v should be enough. Most of the caps having problems are with 10v.
Fired right up!!! Wish I knew this info was online two weeks ago when I started testing for the problem. Took me that long to find the problem by myself- wasn’t till I went to order the caps that I found all this info about everyone else having the same prob. Samsung should be ashamed of themselves! But hey, It’s on now, can’t complain with the eventual result. I did get it fixed once under warranty 7 months ago. (Replaced the whole board) The repair lasted 7 months and they refused to fix it for free again when it broke down this time. Glad I got it fixed again no doubt (for 78 cents!) but now I feel like it’s just a matter of time before I wake up and it doesn’t turn on again. Wish I just knew what was causing the caps to blow.
Pat, one mention that the power supply board uses a 12v bus and this 12v bus is too much for the 10v caps and that cause it to blow.
I’m not an electrician but that’s kinda obvious.
PS- When I was removing the bad caps, I noticed that one of the stems was soldered to another part of the circuit, just ever so slightly, no doubt by accident. So I wonder if that had any effect.
Yo alex, if your friends tv is still under warranty, just switch the back of your tv with em. Know a few who have done it with the LN650.
The LNT4665FX/XAA also has the problem. Samsungs tech support is by far the worst that I have ever seen in the electronics industry.
I wrote a letter to there PR of LCD TV. They are Finally taking responsibility for the Capacitor, they set a date for the repair guy come
and fix it.
my LNT5271F is not in warranty
My modol LNT4032H is having the same problem. Its barely out of warranty. I can’t believe they won’t make good on this LARGE of a problem. Hopefully retailers will quit carrying them. I know I won’t buy another.
Replaced three capacitors in my Samsung T4066F last night (replaced 1000uf 10V with 1000uf 35V) and my TV now works like a charm (symptoms were the clicking time over time before it would turn on and sometimes the rainbow effect as described). I already had iron and solder so this was a $6 fix. Without the internet my TV would be in the garbage.
Thanks!
Same problem in model LE40S67BDX/XEC, capacitors: CM812, 811 and 817(1000uf, 10V, 105º), model of this board is SIP400B by Hansol Electronics
Curious, how many of you guys used the wiselink USB port when or recently before the problem started? I’m beginning to think that using the wiselink is what triggers that section of the board and puts you at higher risk for the caps to blow. What do you think?
I haven’t use my wiselink and it still blown my caps. Whoever made that caps made sure that it will last 1 year before it blows so it won’t get covered by warranty.
I agree- those caps have been known to last only for about 2000 hours of life I believe. I hear ya on the 12v bus, dug up my books and figured out the proper caps via the compacitance formula from my old electronics classes. Do have a degree in computer engineering which involved building a TV for one of the finals- but 8 yrs ago- and was a tube tv. PS- never had any 10v caps in the problem area- only 16v, and 25v
Awesome!! Replaced C811 and C817 on PS on my LNT4061FX/XAA and boooyaaa!! Paid 4 dollas for the caps and couldn’t be happier…….course it should have never gone bad in the first place after only 18 months. Samsung…you need to buy better components!! Shame on you guys.
Chriss – Thanks for posting this article. My parents’ TV wouldn’t turn on this morning. My daughter was at their house and found this article. She disassembled the TV and brought the board home. Other daughter picked up a 2200MFD 35V audio cap at RS and we fixed it in about an hour. Only 1 10V cap on the board and it was bulging. Note about this Radio Shack cap, it’s axial (one lead in each end) and big, but appears to work ok.
Good thing the cap fit. Also make sure nothing will touch those ends coz I am pretty sure the ends are very exposed. Can you please take a picture and post it here
Thanks!
I didn’t think to take a picture before we put it back together.
It is an awkward fit, but it’s not the worst I’ve seen. Careful routing of the leads and you can make it work. If I had to put more than one cap in, I probably would have had to get radial ones like the originals.
I’ll have to see if my dad will let us take it back apart for photos.
thanks for the article…it’s amazing how many people are affected. there’s a youtube video too! but if you’re lazy like me, you can buy a new ip board (samsungparts.com) to replace the current one. it’s amazing how samsung’s people would have charged me….in the end…i can watch the ncaa tourney on my 40!
Gave up calling Sams…ck after they refused to fix. Save your time and effort and just do it yourself. Took less than 1 hr to do to replace 3 10V 1000uf capacitors from my LTN4661FX TV. Pretty easy to do and no soldering experience necessary. Spend the $5 instead of $400. I was very hestitant at first but don’t be afraid it’s easy.
Used only 16V replacements – hope that last at least another 2-4 yrs.
I have the same problem with the “clicking” during power on it started about 2 weeks ago and keeps getting worse and worse. now the power up time is about 1 1/2 minutes.
I just contacted samsung canada and they must be the worst customer service out there. the lady said “electroincs dont last forever and you should have purchased the extended warranty.” but i only purchased my tv 2 years ago and figured that a known brand TV would last longer. anyways i will be ordering some capacitors and giving this fix a try.
I have a LNT4042HX
Good luck on the fix Tim but keep in mind the whole process is really easy. I did it myself and other did too, successfully.
Thank you so much for the information. My 46″ Samsung started going out on me, but I just fixed it today. All it took was about $8 for the capacitors(shipping mostly) and an hour of my time. I would suggest to everybody that when they buy their new capacitors, they upgrade to higher voltage models.
Good to see that this info is out there. My TV worked fine last night and we out this morning. I turned on after 20 mins but then nothing this afternoon. I spoke to Samsung and they said the know about this problem and will fix it for free 1 time “As a courtesy.” I opened the back and saw 1 of the capacitors is bulged. Thank you for having a picture. I don’t think I would have noticed it on my own. I’m going to wait and see what the repair company says, if it doesn’t turn out right I will give your instructions a try. Thank you for taking the time to put this out there.
Great post. I experienced the same clicking,power delay, and rainbow color stripped screens for several weeks with the Samsung model LNT4065F purchased Christmas 2007. Four .77 cent capacitors(16v)and 1 hour has it operating as new. Thanks again for sharing your very valuable information.
Thank you so much! I had the same problem, they would have charged me $150 for parts and $250 for labor. My capacitor spec. was 1000uF, 10v, and 105*C. I couldn’t find anything like that in Radio Shack, so I ended up getting the 1000uF, 35v, and -40 – 85*C and it still works great.
A guy on another site posted a great argument. when calling Samsung ” state, instead of asking about a capacitor problem. for example: I aware that samsung is fixing the problem with its capacitors and i would like to set an appointment.
Also the first 3 Samsung call center guys basically told me your SOL because of no warranty. The last call center guy with the above set the appointment and made me aware that if its something other than a capacitor then there will be a 99 dollar charge. they came this past monday everythings like new.
Please add model LNT4042HX/XAA to your list. I bought my 40 inch in the summer of 2007, and the clicking started after a year. It’s only getting worse. It takes 20 minutes for the tv to come on and during that time I can’t even turn it off. Samsung admits the capacitor problem but told me my model# is not listed on their capacitor problem tv list.
My model is LNT4042HX/XAA, 40″. Same problem started about a month ago, and as of 03/26 it will no longer turn on. TV was purchased in Sept 07, so it is clearly out of warranty. I’ve contacted Samsung and initiated a repair request, but have been told that my model is not a covered unit because of the production date. My unit has a production date of July 07- only models produced between Oct 07 and Jun 08 are covered at this time. I questioned why my model would not be covered, as it is clear from the symptoms that it has the same capacitor problem as the covered units. She would only tell me that my problem may not be with the capacitors, but the power supply instead. When I asked to escalate the call, I was given an address for Samsung US’ corporate offices, and told that the call center does not have a phone number for the corp offices.
I also had 4 bad capacitors on my LNT4042HX/XAA. Replaced by service technician, ~$250. Same manufacturing date, July 07. Pretty bad treatment of customers by Samsung.
Had the same problem on my LN-T4661F bought in 2008. I called the Samsung customer support #, and the guy had never heard of this clicking problem. He told me to replace the batteries on my remote… Geez, thanks for the help… I told him to Google search “Samsung clicking problem” since he’ll see all these posts. He told me he would not. Worst excuse for support ever.
I had two blown caps (2200uF 10V). I bought replacement 2200uF 16V at Sayal electronics in Cambridge, and soldered them myself in 5 minutes. Works perfectly again.
Thanks for all the info – saved me a bundle of $. I doubt I’ll be buying Samsung again. Should have known better…
First Why would you tell people how to do this, some things you didnt list like, Opening up your TV is bad, you can be shocked even if the tv is unplugged, If you get the board to hot you can damage the board and have to replace it. samsung put 10v caps in there for a reason, you should always always always replace the cap with the same type of cap. you could be setting someone up for a let down. there are other reason’s for these caps to go bad i’m not going to list them because someone will mess something up and burn down there house. There are also two diff kinds of solder Pb free and non-Pb free solder, Can you tell me witch one your board is? it is very bad to use one kind of solder with the other kinda board. Always take our TV to a TV repair man, because if you screw up your TV you have to replace it, if a tech does they have to replace it and having a tech do the work most of the time they come with a warranty. lastly If you do not have a de-soldering tool you should not try this you will HURT YOUR BOARD!!!!!!!!
good luck everyone
Thanks for the Info, I will add that to this post that they have to be extra careful opening their TV for they can still can be electrocuted even if the TV is unplugged. Plus I will make my disclaimer a little bigger so that people like you won’t miss reading it.
Once again thanks!
Hi All
I have the same issue with an LE46M87BDX.
I have just called Samsung UK, they told me they are aware of the problem and are offering a free repair as a jesture of good will.
Hi Folks,
I’ve just had the same capacitor issue with the LE40557P2FXXU approx 2 years old. 2 capacitors 1000uF 10v now replaced with 1000uF 25v caps. total cost 84 pence UK. Less than a dollar and a couple of hours including the drive to Maplins for the capacitors.
A quick note to Jason, Samsung put 10v capacitors in the telly for a reason….the reason being that they screwed up big time. This is a simple repair for anyone with even a vague technical background and if you own a soldering iron it would be reasonable to assume that you know how to use it.
A repair in the UK would have cost me well in excess of £100 and I would have been without the tv all over Easter, so a couple of hours and less than £1 works for me. We need repair articles like this, keep up the good work.
Hey, guys thanks for all, I replace the capacitors too 1000uf 10v for 1000uf 35v in two dell monitors, and the live again… works perfect, the most beautiful, i paid 22 dlls for 4 dell flat monitors. I fixed two follow all your coments,
thank you,,, The Glory is for God, i use this monitors in my church
Hi, I have change the 4 capacitors that were bad on my samsung but still my TV will not turn on? need help, another possible cause for this problem?
I also had the problem yesterday , i replace the 4 capacitor, 1000µf 10volts, but TV will not turn on, so changed the capacitor to a higher voltage 1000µf 35volts, now working fine.
I had the turn on tv 8 times click. I opened it up and found 4 capacitors that were bulged, two where discolored on top. I found a localt TV shop and got 4 1000µf 25v 105C caps. I installed them, put the LCD back together and now it works like it did when I first pulled it out the box. Total cost for the repair $35. I had to buy the caps ($3 a piece, I got an extra one just in case), soldering iron and flux.
i have a Digital Lifestyles hdtv for going on 3 years now and its doing the same as the samsung tv taking 1-5 mins starting up do you things its the same problem ????
My March 2008 LNT5271F has the problem too. First time I contacted Samsung, 2 months after the warranty expired, they feigned ignorance of the problem said I would have to pay for repairs. Obviously this is MAJOR problem and I am going to file a complaint against them.
For me the problem started with a couple of extra clicks at start up and progressively got worse. Two days ago I was up to a half an hour of wait time for the TV to turn on. Yesterday after an hour it was not turning on, so I decided it was time to tackle the problem. I opened up the TV and sure enough 4 of the capacitors on the power supply were bulged and had a wee bit of ooze. I pulled them out and now I just need to track down the parts. I’m hoping a local shop carries them, otherwise my TV will be out of commission for a couple of weeks if I have to mail order the parts.
I just want to commend the person that put this information on the web!!
I have a 48inch Samsung that I was quoted 400.00 to get this problem fixed at my local repair shop with a 2-6 week waiting period. I followed this very easy do it yourself instructional post and $3.00 later I had my very nice LCD Television working better than when I originally purchased it!!
I replaced my 10V 1000uf 105ºC capacitors with 25V ones and in my opinion my television seems to react faster and smoother in regards to channel changing etc. When I told my wife it is faster she laughed at me pretty hard and told me it must be a man thing?
None the less….a job well done
Thanks again!!
Shawn
I’ve got a 3 year old Samsung LE40 LCD TV, and it’s having this problem.
If you’re in the UK, call Samsung and explain it, they’ll organise a free repair. They admitted to me that it’s “a known fault”, and they’re getting a local repair company to come out and do it for free
Thanks to this site though, if it weren’t for you I would’ve had to pay out over £100 for a fix from Comet!
LN52A540P2FXZC – Just this morning. Now off to work with a peace of mind knowing that I won’t necessarily have to throw this TV out. Thanks. I’ll go to my friend with a soldering iron and see if he can help out. Where’s the best place to get the new capacitors?