Samsung LCD TV power up problem

Posted in: Featured Post, FYI, Gadgets, samsung, Tech Tips

Available now! Samsung TV Claim Form For Capacitor Problem.

(Please scroll towards the middle of the page)

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

swollen, bad capacitors buldge

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:

  1. The capacitance measured in uF(micro farads) (ex. 2200uF),
  2. Voltage (ex. 10v),
  3. 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 IronSoldering Guns & Irons)
Heavy Duty Soldering Iron StandSoldering Equipment)
Desoldering WickSoldering Equipment)
Solder Wire 63/37 with a No Clean Flux Core .032, Pocket Pack (0.6 oz)

SAMSUNG TV SETTLEMENT NOTICE

 

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.

Watch Videos on how to solder and desolder


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 – GraphiteTVs)

 

(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.

Attention: Call Samsung (1-800-SAMSUNG) because they are fixing the capacitor problems for FREE!

538 Responses to Samsung LCD TV power up problem

  • viola

    Replied on: October 15, 2011, 1:18 am

    Hi, everyone, just wanted to say that I my Samsung LN-T4642H
    falls under the recall category and they will fix it for free if proof of purchase shows after april 2007, what a nice surprise and relief :)

    • alex

      Replied on: October 21, 2011, 5:34 pm

      No such luck for me…. I also had a Samsung LN-T4642H. Just chatted online with a Samsung service agent and was told that since my warranty has expired (purchased 2007 Sept 1), I will have to pay for the repair. Was told to submit a service request, but I will try the DIY fix instead.

    • Shawn

      Replied on: November 12, 2011, 3:10 pm

      I found this article and promptly called Samsung about my problem. I purchased my samsung LNT4042HX in 2007. Within 5 minutes on the phone with the service tech they setup an appt to have the repair done free of charge.

      Glad to see the company stands behind there product.

  • Brian Hayes

    Replied on: October 21, 2011, 6:41 pm

    I contacted samsung re;power up problem with model LN-S4041 and they say it is not on a recall list. They will not cover the cost to repair.

  • Paul

    Replied on: October 23, 2011, 8:59 pm

    My TV is the LN40A530P1F and has the same problem (Samsung TV 40″ Full HD). I won’t try the DIY fix for now, ’cause my parents don’t want me to fiddle with that lol. I’ll check if it’s on a recall list. If you want to add this model to the list, would be nice.

  • Caleb

    Replied on: October 25, 2011, 6:44 am

    Hello, I just recently acquired a Samsung HPR4272X/XAA SA01… It’s a few years old, I guess. The previous owner purchased it new, had it up until about a month ago and it always worked fine for him. I don’t have cable or anything and have been using it as a 42″ computer monitor. When I booted it up for the first time, I noticed that images were being burned into it really easily. After owning it for a few days, I walked into my living room and heard it making a ticking noise. Like other sets reported on here, it wouldn’t respond to the power button or remote, then after a few hours of ticking it just turned itself on. Once it’s on, it stays on without a problem for many hours, then will eventually shut itself off. If you manually terminate the power via the button or the remote, it won’t turn back on at all. When it works, the picture is fantastic but it’s still very easy to temporarily burn images onto it. Once it was on, I would leave it on till it shut itself off cause I never knew if/when it would turn on again. While it’s doing its ticking, the little LED light around the power button occasionally blinks 4 times, and if you hold the remote button in, the light blinks rapidly. Now it’s just ticking and unresponsive. I’ve noticed that a lot of people are saying that the problem is probably burned up capacitors, but I’m unsure of which ones I should order and whether this model takes a specific one. I’m tech savvy, but I don’t understand boards and capacitors. Some advice would be greatly appreciated. Sorry for such a long post!

    • Chriss

      Replied on: October 25, 2011, 8:21 pm

      Caleb,

      Before you buy the capacitors, check you power board first and see what caps are bulge. Once you identify it take notes and purchase it. I have a link of a video on how to remove the caps from the power supply board. It’s not hard at all. Good luck!

      You can also see links above where to purchase the caps online.

  • John Ranous

    Replied on: November 12, 2011, 9:23 pm

    Add Samsung LN40A750R1FXZA to the list of affected units.
    Bought this TV in July of 08, and power problem began in September, 2011. Internet provided the reason for the problem.
    I contacted Samsung and was told my TV was not on their list to be repaired without charge. Getting anything out of Samsung is
    a hit-or-miss proposition. Replaced the two 1000uF capacitors that were blown and the set is working fine.
    Total cost was under $25. No more Samsung!!

  • Gary

    Replied on: November 18, 2011, 2:09 am

    Found the Crovean website Sunday night. Opened the TV and found the bad capacitors. We were ready to do the repair ourselves but decided to try the 1-800-SAMSUNG number.

    It is now Thursday (same week) and we are once again watching our 46″ LCD TV. It was a fairly painless process. The person we talked to spoke perfect America English – no “Peggy.” We had to read her some numbers from the back of the TV but no proof of purchase was required.

    We were told that this is a one time repair offered by Samsung.

    I suppose everyone before us wore ‘em down so by the time we called, they were only too happy to help just to avoid yet another crabby customer.

  • gmiga

    Replied on: November 20, 2011, 12:33 pm

    I am also having the same issue on an LCD model LE46A6561F . Thanks for your blog very useful. Do you know if Samsung Europe is also replacing for free bad capacitors ? . I am located in Belgium.
    Otherwise Ill do it myself , and if it works you ll have a coffee ;)

    Thanks

    Gmiga

    • Chriss

      Replied on: November 21, 2011, 6:29 pm

      Gmiga,

      Just try to call them, it won’t hurt to ask.

      Thanks in advance!!! :P

  • Billy Bob

    Replied on: November 22, 2011, 1:39 am

    They put 10 volt capacitors on a 12 volt circuit? Sheesh. That’s like setting your computer’s power supply to 120 volts, plugging it into a 240 volt recepticle, and then acting like you don’t know why the PSU blew up.

    Talk about cutting corners in order to make your TV for as cheap as possible…

  • Samsung Acknowledge Power Supply Problem | crovean.net

    Replied on: November 28, 2011, 2:12 am

    [...] make the first 50 customers to get there TV sets fix for free.  You can follow my unofficial guide on how to fix the power supply problem on your Samsung LCD or Plasma TV sets cheaply. Tagged in: samsung Share this on:Facebook Twitter Delicious Digg Google Reddit Stumbleupon Email [...]

  • Jonathan Andersson

    Replied on: December 5, 2011, 9:58 am

    Hi! I have a Samsung 2043NW computer monitor that seems to be dying (guarantee expired), it takes longer and longer time to start up, today it took about 7 minutes. After some Googling it seems like the capacitors are failing (I have tried the monitor on another computer and no difference). How do I know which capacitors to buy? And is it safe? According to the manual for the monitor you shouldn’t open up the monitor.

    • Chriss

      Replied on: December 5, 2011, 4:41 pm

      Jonathan,

      It can be dangerous since you are dealing with power supplies. As long you have your monitor’s power flushed then it should be Okey. Power supplies tend to store some electricity even if it’s off. Flushing the power is the only way to take care of it. How to flush? unplug your monitor’s power cord and press on the power button.

      Now on which capacitor to buy, the only time you would know this is after opening your monitor. Once you see the bad caps just write down the capacitor’s information.

      • Jonathan Andersson

        Replied on: December 5, 2011, 10:27 pm

        Ok! Thanks a lot for your answer! :) By ‘press on the power button’, do you simply mean to just press it, or to put pressure on it for some time? By the way, it’s like a touch power button, not one that you can physically press down, you just touch it lightly to turn it on/off. Does it work anyway?

        • Chriss

          Replied on: December 6, 2011, 4:29 pm

          Yes, just press is normally. What it does is just draining the rest of the power in the power supply.

          • Jonathan Andersson

            Replied on: December 6, 2011, 6:08 pm

            Oh xD I see! Thanks again :D

Leave a Reply

Your email address will not be published. Required fields are marked *

*

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>