You’re here because your Samsung LCD TV is not working or it takes forever for it to start up, right? And you want to know how to fix this LCD TV, right? Well, 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 more about Symptoms of an LCD Power Supply Problem
Bad Capacitors
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:
- The capacitance measured in uF(micro farads) (ex. 2200uF),
- Voltage (ex. 10v),
- Temperature (ex. 105°C)
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1000uf 16v Capacitor 105c High Temp, Radial Leads
2200uf 16v Capacitor 105c High Temp, Radial Leads
Weller SP40L Marksman 40 Watt Soldering Iron
Heavy Duty Soldering Iron Stand
Desoldering Wick
Solder Wire 63/37 with a No Clean Flux Core .032, Pocket Pack (0.6 oz)
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:
My Official Samsung LCD TV Problem List
Did your Samsung LCD TV just completely went kaboom and does not work anymore but still wants a Samsung TV?
Buy this one! Its the best priced Samsung for your money: Samsung UN40C6300 40-Inch 1080p LED TV – Graphite
(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.
Your LCD monitor having problems too? Well, I bet it’s having a capacitor problem too just like this ACER X221W
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!
If this tutorial has help you and save you lots of money. Click on the donation button to buy me a $3 coffee. Thanks!
See what Samsung has to say about this known problem with their LCD and Plasma TV sets.
531 Responses to Samsung LCD TV power up problem
roni
Replied on: December 5, 2011, 6:45 pm
I purchased one of the tv’s with the defective capacitor(s) –purchase date 12/22/2007. Samsung fixed my tv free of charge. I made one call to the customer service department on 11/29/2011 and my tv was repaired at my home 12/5/2011. The entire powerboard was replaced. My tv fell into the “crop” with the bad capacitors. Hate that happened but I thank Samsung for stepping up to make the repair with no questions asked.
gary davis
Replied on: January 6, 2012, 12:04 am
I bought a 37 inch samsung @18 months it started turn off and on and then nothing,contacted samsung they did not want to know going thru sale of goods act against the supplier as its states under 6 years a product of this price and type is expected to last longer than 18 months .Will never buy another samsung product again crap service!
Jenn
Replied on: December 6, 2011, 5:07 am
Hooray! You’re my hero! I too have a bad Samsung LCD TV and after reading this immediately called Samsung and guess whose TV is getting fixed for free! That’s right. The guy wasn’t gonna hand over the free fix, but with some gently prodding he went ahead and arranged it.! Thank you so much! I was thinking that we were going to end up having to buy a new tv!!!Not anymore! Thank you!
Charles
Replied on: December 30, 2011, 3:15 am
Did you still have warranty on your tv when they came to fix your tv ? I paid them 400 last year to fix that , but now my TV went dead again ! Last time I call they want to charge more , never buy this brand again !
Chriss
Replied on: December 30, 2011, 3:37 pm
Charles,
If the problem pertains with the capacitors, they were actually fixing the problem for free. Now, when they fixed your TV last time and all they did was replace the power board, that means it won’t solve the problem because it’s the capacitors causing it and I am sure the replacement board had the same capacitor type from the one they replaced. Sorry to hear you had to pay $400 for them to fix it
Phil
Replied on: December 6, 2011, 7:57 pm
Hi there I bought my tv in 2007 also. I can’t seem to find the customer service number. Keep getting directed to local samsung office! Help!
Chriss
Replied on: December 6, 2011, 8:10 pm
is this the number you called? (1-800-SAMSUNG)
LCD TV Buyers Guide (For Dummies Version) | crovean.net
Replied on: December 14, 2011, 4:48 pm
[...] about buying a Samsung? Think twice before you purchase one(Read my post on Samsung Capacitor Problem). Now back to the questions, Think Sony, they have hold their name as one of the best LCD in [...]
Euge
Replied on: December 27, 2011, 1:40 pm
Tx heaps. Have a LA40N81BD that stopped turning on – clicking continuously. Thought i had to get a new tv. Found your website. Got new capacitors – 2 x $1.35 Working again! Can’t believe how much Samsung service charges vs the actual cost of replacing capacitors. Tx again!
Alphonzo
Replied on: December 29, 2011, 9:42 pm
I purchased my Samaung LN40A550P3F May 2008 with the extended warrenty. 2 months after the warrentry expired the problem started with my TV. I called Sumsung and they sent out a repair man to fix the it. They had to also replace the power supply. Now after 120 day it is doing the same thing and now not covered. I am not happy with Sumsung and will not buy another one of there products.
mcruz
Replied on: January 1, 2012, 9:09 pm
Samsung has recognized the problem regarding the power suppply, be the capacitors, and or boards. It is my opinion that their power supply boards are simply flaud by design. However, they will not extend complimentary repairs for plasma versions of their hd tvs. Not even for a die hard SAMSUNG everything in my home… Currently researching my specific model. Hopefully I can document and share. Thanks for the help!
Mike
Replied on: January 2, 2012, 9:01 pm
Have a LNT5265FX/XAA. There are five (5) swollen capacitors on the power board. I have a service ticket with a repair service – no date yet, no clue as to $. Well out of warranty. If they replace the board with the same issues, why bother? I’ll try my own fix first – also lost the Samsung DVR/Blue ray player and the Samsung CD changer. I loved the TV when it worked, now I make it a point to tell others not to buy something the company will not stand behind 100% and point them to the various internet sites regarding the issue. ASUS boards also had this issue – except it was “liquid” core capacitors that leaked, not undersized.
Bill Prieto
Replied on: January 4, 2012, 12:08 pm
I replaced a swollen electrolytic capacitor and re-installed the board. It did not fix the problem. So I ordered a used power board on ebay. It arrived, installed it and the set powered up. Beautiful picture. I will send the board I tried to fix to an online service advertised on ebay to fix for 35 dollars. The board was 73 dollars plus shipping. My parents gave me the set, bought a new set (vizio) and I researched this one and fixed it for just under $100. Not bad for two weeks wait.
Acer X221W LCD Monitor Capacitor Problem | crovean.net
Replied on: February 3, 2012, 9:23 pm
[...] here’s guide on how you will fix an Acer X221W LCD Monitor: (For Samsung LCD Power Supply Problem Guide) 1. Unscrew the LCD stand (4 screws) 2. Remove the plastic back of the LCD by popping it out. [...]