How to Fix Clicking Samsung Tv (wont Turn On)





Introduction: How to Fix Clicking Samsung Tv (wont Turn On)

EDIT: 03/09/12 (09/03/12 for you silly ol 'murricans, teehee) So this is the first time I've checked up on the instructable in over a year, honestly you'd think it wouldn't take me this long to realise Gmail was filtering out the notification emails as spam.
Anyhow; At the time of writing here in the UK I was told that this was not covered under warranty and that I would have to pay £150 to have the board replaced. It seem in other countries samsung are somewhat more benevolent and that since the time of writing some sort of legal action has occurred regarding the subtle design flaws that have a tendency to show themselves just after your warranty expires. So should you be in some kind of mental debate over the options available to you DO NOT open up your TV first. Phone Samsung, see if your model is on this list, read up on the legal situation wherever you live.
It seems I was also borderline illiterate at the time of writing so at some point I will be re writing this in a comprehensible manner.

if your looking at this then you probably have a samsung tv thats broken. This instructable is for how to fix one of the most common faults in samsung LCD tvs. This applies to pretty wide range of models, but in short the ones with the piano black bezel are all affected (That is those with the problem are all fixable in this way). when you turn the tv on it should click once. this problem is that it clicks more than once. first twice, then 5 times then ten then 50 and so on, until eventually it takes about 10 minutes to turn on. Here is how you can fix that problem

Step 1: What You Need


to do this you need a few things

1)a soldering iron (30 watts or over)
3)some sidecutters
4)some needlenose pliers
and 5) 2 screwdrivers (a big one and a smaller one)

Step 2: Lets Get Started Shall We

first things first, unplug everything, especially the power cable. once you have done that turn the tv on. i havent forgot that i just said unplug it, it just helps to drain some of the power out of those capacitors.

Next step: Wait. leave it to sit for a few minutes, there's some pretty hefty capacitors in there that'l give you a zapping you wont forget
once youve done that you need to put the tv face down on your duvet or soft thing. Its best not to put it on carpet, even if it is soft As static electricity is never good for semiconductors of any kind, be it the screen or the IC's inside

Step 3: Opening It Up

now you need to open up the casing. remove all of the screws on the back of the casing and then lift it off. Be careful when lifting it off, if anything feels like its not coming away check, its very easy to miss a screw or two. 

Step 4: Identifying the Problem

now that its open you should see something similar to the picture below. if your tv is over 50 inches then it probably has little metal cases over the boards so just unscrew these and remove them.
The beige coloured board is the one we're after and samsung has handily drawn a big black line across the middle, indicating which side is live and which side is slightly less live. If you cant tell the difference the the dangerous side is the one with the DO NOT TOUCH, DANGER OF DEATH signs on it.  What we want is the cluster of electrolytic capacitors in the corner (see the second picture). you can tell which ones are dead because the tops are bulging, and may be leaking small amounts of black electrolytic fluid. On mine the four dead ones were all 10v, 1000uf, 108 degree operating temperature capacitors. but other models may be different so it pays to check. Don't try to find identical capacitors online, that's just a tad silly. (replacing an already underrated part with an identically underrated part, clever huh?) I replaced them with 25v, 1000uf, 105 degree capacitors, the capacitance should be he same as the originals but the voltage should be a little higher.  Once you know what they are you can go out and buy them right away and proceed to the next step. or you can do what i did which is buy them online, put the tv back together and put up with the clicking till they arrive. I got mine from Maplins online shop for about 70p each. im not sure if maplins exists in the US so I cant really help you there.
EDIT: I have since been informed that radioshack is not the place to go for caps.

Step 5: Replacing the Capacitors

by now you should have your shiny new capacitors, fresh from the internet or wherever else you bought them from. if like me you bought them of the web then put your tv back together you will need to take it apart again. just go back a couple of steps and follow those instructions.
Otherwise you can begin. first we need to remove the power board, so  unplug all the cables and connectors from it (make notes if necesary) and remove all the screws carefully take it out without touching the hot side.
Now to remove the dodgy ones.
gently tug the capacitor out as you melt the solder on the other side, once its out just slot the new one in. remember that the polarity matters, the short leg goes in the side marked with a black line. If your not sure then on the solder side there is a small +, marking the positive (longer leg) lead. Solder your new cap in, trim the leads and voila!
Repeat this for all of the dead ones and put it all back together.
once its all back together and plugged in, try it out.

Step 6:

If it doesn't work then you have a problem. (You guys signed the disclaimer right?). Open it back u and check all of the work you did. Check the polarity of your caps, check for bad joints or solder bridges, make sure every connector is securely back in place. 

however if it does work then:
HOORAY IT WORKS!  celebrate by watching TV.

Step 7:

K, you can go now

Step 8:

really, you can go

Step 9:

that means leave.

Step 10:

GO HOME!!!!!!

6 People Made This Project!


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I called Samsung. There is some settlement on some brands of Samsung LCD TV's sold before 2008. I spoke to a nice lady at 888-899-7602 who asked for my model number and serial number, then took my info to arrange for a local repairman to come by within 1-2 days to check the capacitor and replace the power components at no charge. SO glad I read this page and called Samsung before having it shipped off and spending a lot of money. Hopefully I will get extended life from this TV set with this servicing.

So I have a Samsung UN55B7100WF and I got the problem where the TV would click but wouldn't power on. After reading a lot of forms & watching YouTube videos I though it could be a capacitor, because that seemed to be the most common problem. I took off the back and looked and the power board and all the capacitors looks fine. None were swollen nor had the top of the caps looking like they burst. Never the less I figured it could still be the board because some people say it could be hard to tell. I purchased a new board from PartStore.Com and it arrived today. About 20 minutes ago I took out the old board and installed the new board and hooked all the connections back up. When I tried to power it up the same thing happened. never powering fulling up. No led showed or anything. So... The power board was a waste. It was about $173 after tax and shipping, and hopefully I get the majority of my money back. I did read it could be the TV board, but that is around $325 and if I am going to spend $600 in total I might as well just get a new TV. So all in all I didn't have any luck when replacing the power board. I'm still interested in what anyone thinks the problem could be if a new power board was put in and the clicking without it fully powering up could be attributed to.

same as me. I just bought a new power supply board put it in and nothing changed. B

I have that problem right now with a tv.
It ticks but the screen stays black. Looks like it doesn't fully power up.
I also would have thought it would be a problem with the power board... I will probably take it apart and look for any obvious problems but if a few replacement caps cant fix it then I am not going to try to fix.
I have previously repaired this tv's swollen caps before and it was working fine after the fix for about 4 months. Previous issue caused the tv to sometimes power up the screen and sometimes not, no ticking noise. The fixed caps were on the power board.

Scroll through and you will see @GulfCoastGD's post at least three times verbatim. Seems a little fishy.

So this is all correct. I opened it up, changed the capacitors and it works great. Capacitors on Amazon 20/$4.30. Nice!

Thank you so much for that number! I called and a technician is coming out in the next couple days! I had already bought the capacitor kit, but oh well, maybe I'll need them in the future.

Thank you so much for posting that information. I just called and the serviceman is coming out on Thursday. 100% legit. Now my boyfriend is sad because he has no good excuse to buy a new telly. :-)

Thank you for posting this! I called Samsung and they sent out a repairman at no cost to me (Canadians have to call Samsung Canada). My TV is working fine now but the repair guy said the capacitors will blow out again after a few years.

That number is 100% legit

Thanks you so much sstiefel. The lady was great and as long as your model is on that chart I posted then it's 100% free. My tv is a LN46A550 and on the list she said within 2 days the service center will call to come to my home. It will cover Power Supply and capacitor repair. I am very good with a solder iron so I was totally willing to do the repair but, I'll let them.

What sux for me I bought my tv 3yrs and 7 months ago and bought the 3 yr replacement plan I could have gotten a brand new tv if this happened a little sooner.