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)
Support this page by buying your items here: (THANKS!!!)
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
Lawrence
Replied on: November 2, 2009, 4:48 pm
Just got a reply from Currys , they still need an tech report to even entertain the fact that it might be an inherant problem! is there a repair firm that will do this and wait to be paid after the fact? or do i have to shell out?
Sandra
Replied on: November 3, 2009, 2:19 pm
We have a Samsung 42in tv model LE40R88BD which has the same clicking problem as many have mentioned above. All the capacitors have been replaced and that made no difference. We have now bought and fitted a new power supply unit and it still isn’t working, same clicking sound. Can anyone advise what we can do next ?
Mike
Replied on: November 7, 2009, 4:25 pm
We have a Samsung 42 plasma with the same clicking sound.. I have replaced every CAP on the Power board..DID NOT fix the problem…any suggestions?
Chriss
Replied on: November 9, 2009, 7:02 pm
@Mike & @Sandra – is it still making a clicking sound after replacing all your caps?
Dom
Replied on: November 11, 2009, 2:41 pm
I have model number LE40R74BD, And this is showing the same symptoms, Clicked for a few weeks before totally giving up. Im a real amatuer but hey ho, Got a new one on the insurance so what is there to lose.I’ll post an update if i survive the operation.
Darrell
Replied on: November 11, 2009, 5:53 pm
This problem is not specific to Samsung units. I’ve got a $1500.00 16 month old 47″ LG LCD HDTV that had the same problem (yup…outta warranty). Researching my problem led me to this discussion thread. All I can say is “YOU ARE DA MAN!!!” I popped the back off my unit and lo & behold…three blown Caps, two of which were leaking. I was scared to death to mess with it, but it isn’t like I could do any more damage. I already had a TV that wouldn’t power on. I had to remove 4 screws holding the main board down to work on the caps from the back side. Suggestion I would make to those following in my footsteps.
1. Take a digital photo of your board and/or draw a diagram of where all your cables are plugged in to the board. I also labeled mine with a permanent marker (1-6).
2. On the board there are numbers next to the components. In my case capacitors numbered C202, C206, and C217 were bad…the numbers correspond to the solder joints on the back side of the board. My board was so “crowded” it took me a sec to figure out the locations until I found the numbers. Hey, I’m no electronics genius…but I was able to fix the TV for $1.50 in parts ($.50 each) and avoid $150.00 just for the repair tech to show up at the house.
3. Make sure you use a 40watt minimum iron with a very small conical tip. I wish I’d bought the 45watt for $3.00 more.
Also…be advised…your repair techs rarely “fix” the components on the board…they generally believe in remove & replace (as in the whole board) which would have cost another $400.00. I purchased the solder iron, desolder braide, and three caps for less than $15.00. You do the math, that’s .027% of what I would have paid a repair tech.
HUGE —-> :+)
Chriss
Replied on: November 11, 2009, 6:11 pm
So apparently this problem is not limited to the Samsung brand.
Suzanne
Replied on: November 12, 2009, 8:43 pm
I purchased a Samsung Tv (LN46A750R1FXZA) on July 18,2008. On, Oct 11,2009 I started hearing a crackling noise and my tv went dead. I called Samsung and they said that my tv is past warranty and gave me the number of a samsung authorized repair shop. They said that it is probably the power supply or a bad capacitor and would cost $600.00 to fix. I went on line and found a lot of people with the same problem. I called Samsung back and complained and she finally gave me a customer relations number to call. I called and they volunteered to extend my warranty till the end of November. Within a week they had a repair person fix my TV in my home. He replaced the power supply but that did not fix the problem and he replaced the main board and that fixed the problem. Also if anybody purchased their TV with their american express card they automatically extend the warranty on any purchase for one year.
DaveH
Replied on: November 13, 2009, 2:47 pm
I just went through the same problem with my 22-mo old Samsung 4669T. Thanks so much for the guidance! I had to replace 2 caps (2200uF, 10v, 105 max temp), which I ordered from Digimarc. It took more time to get the board out (lots of screws, cables, etc.) than to swap the caps. But everything went smoothly, so we have “instant TV” again.
carl
Replied on: November 14, 2009, 9:26 am
i have an samsung ps42q96hdx same problem, no picture with clicking, tried changing some capactiors but couldn’t see any bulging ones so unsure which to change so i changed 10 but not change.any ideas?