We recently got a tv from our neighboor who complained that it wouldn't turn on. We got it, plugged it in, and it seemed to work fine. After about a day we noticed the mentioned problem. We thought it might be a bad power button so we got a new remote. That didn't work either. The problem was initially that the tv wouldn't turn on at the first try, it would take several, now it won't turn on at all remote or button. When we try the tv will make a power up noise on occasion and the power light will either flicker or stay lit in between attempts. On a side note we left it in the on position and tried shaking it a bit(stupid I know) and surprisingly it turned on for a second with sound and picture before turning off again. Any help would be great, I'm not afraid to get inside it and replace parts, I have some experience with electronics.
Its a Samsung Dyna Flat Pro
Model # TXN3245FP
Reply 1 : Samsung TV won't turn on
I'm not sure what the problem might be.
Though I would respectfully suggest that you have a qualified technician diagnose it.
--HDTech
Reply 2 : Samsung TV won't turn on
I have a Samsung 52" LCD 650 and it does not turn on right away and after 10 to 20 mins and a lot clicking on and off it does turn on and all is fine. This now happens everytime I try to turn it on. After doing some looking on the web it seems to be related to another issue which Samsung did do a fix for. There is a problem with the tv just turning off all by itself - called phantom Auto shut off - it is a firmware upgrade - this may fix the issue. I am going to try it and see what happens as I did have this problem as well.
Reply 3 : Samsung TV won't turn on
We actually had a very positive experience this week. Our 3 year old 42 inch flat screen LCD TV starting having issues and by Monday would not turn on. We heard a clicking sound. We researched the problem and after reading many comments it did not sound positive. I called Samsung Monday eve. and she said our model was not on the list for free repair but told me to call back the next day. I did and the person was very helpful and said they would repair it for free if it was the capacitor. If it wasn't we would have to pay. She connected me with a company in Lancaster, PA, Radio Active Repair. I received a call that day. The repairman came today, Thursday and replaced the swollen capacitors and the tV is working like new. All this occured in less than a week. Samsung did stand behind its product.
Reply 4 : Samsung TV won't turn on
Samsung really does stand by their products. Our 42 inch flat screen was working fine we swithed it off went out to dinner and when we came back it would not turn back on just a red light right next to the green on light. called samsung and they said it was a bad caoacitor and for a one time send out a repair free of charge. Samsung you rock!
Reply 5 : Samsung TV won't turn on
neither remote nor manual switch initiates power on
took it apart and removed power cable verified good
must be fried input circuit
too bad, great tube and picture, without schematics will be tough to fix
guessing they may know of the problem but can't find any info on it
Reply 6 : Samsung TV won't turn on
Yeah, a few other people seem to have the problem and most of them have had it diagnosed as a bad high volatge transformer, bad fuse, or a bad starter box. I just don't know how to check if any of those are bad.
Reply 7 : Samsung TV won't turn on
when i turn on my tv it just clicks .after 5 to 10 minutes of clicking blue light gets bright enough and tv finally come on
Reply 8 : Samsung TV won't turn on
Tonight, my samsung 42" lcd f8 went pinkinsh and turned itself off whilst i was watching a movie. It then began to click at the same time a red light on the bottom right hand corner was blinking.
The TV is about a year old and I have not had any issues appart from not being able to recognise any laptop or pc.
Any suggestons will be appreciated.
Reply 9 : Samsung TV won't turn on
it is a power supply problem.cost me $300 to get a $29 dollar repair kit put in.hope this helps william mackey
Reply 10 : Samsung TV won't turn on
Go to Radio Shack buy up to 6 1000uF 35 V Capacitors and solder them on replacing the old ones that have probably bulged out. They are in the upper right hand corner of the main power board when you look at it. Google the problem. Many have had success doing this.
Reply 11 : Samsung TV won't turn on
I was able to get the capacitors from my local Radio Shack. I took the back of the tv, removed the main board. With a soldering iron removed the 4 bulged up 10v capacitors and replaced them with the 4 new 35v capacitors. The TV is working fine now. If I can do it, you anyone can do it
Reply 12 : Samsung TV won't turn on
I have the same problem and since the tech wants $260 flat labor fee, I sure as heck will try to replace the caps. My model is LN52A650A1F. I have seen a couple of references to capacitor locations for different models from mine. Would mine be in the same location and the same sizes as I see in these posts.
Reply 13 : Samsung TV won't turn on
I opened my lcd 52 and the caps were not bulging, but replaced them anyway with 25v from 10v. same issue with powering up. the normal clicking crap for 10-15 mins then powers up. I just dont want to buy a power board and that not be the issue. is there any way to diagnose the cause then replace said part. I want to avoid paying a tech to do something I can do myself, but dont want to spend 1k replacing parts I THINK may be defective. Help a brotha out...tks..
Reply 14 : Samsung TV won't turn on
hi i have exactley the same problem. the tv will switch on when warm and samsung must be aware of this problem
Reply 15 : Samsung TV won't turn on
I have the smae problem, tv won't start for 4 - 5 mins and i hear clicks until then. Once tv is warmed up, will start immediately if I switch off and then switch on again.
Automatically shuts off in the middle and starts again on its own. !!!
Reply 16 : Samsung TV won't turn on
Now that you know about the BAD CAPS issue you can read all the posts about it.
Reply 17 : Samsung TV won't turn on
Now it won't even turn on, manual or remote.This is obviously a wide spread problem with various Samsung models and screen sizes, I don't understand why they haven't been called out by the various well known Electronic(s) review and advice web sites. Samsung should be held accountable for continuing to allow such a inferior product to remain on the market without recalling them or at the very least acknowledging that there is a problem. In addition CNET and other sites need to publicize this issue and call attention to it until Samsung takes responsibility. I have tried to contact Samsung directly but have yet to receive a response.
Thanks..
Reply 18 : Samsung TV won't turn on
try the PTO little black or Blue box on Power board, go around and check all the caps for leaks etc
Reply 19 : Samsung TV won't turn on
power supply problem.this happened to me,mine would try to turn on but just click.had to pay $175 to have a power supply repair kit put in.kit only about $25 if you can fix it youself.this is a common problem with lcd t.v.s.they get too hot.
Reply 20 : Samsung TV won't turn on
Could you please indicate how to find such kit? how do you know it costs US$25?
thanks
Reply 21 : Samsung TV won't turn on
I have the 40" 530 series and it does the same thing. Just over a year old and it turn off and on until it finally comes on. It seems to take awhile for all the remote functions to start working. They work close to the TV to start and I slowly able to use the remote further away.
Any help would be great.
Reply 22 : Samsung TV won't turn on
It clicks and makes the power on noise and blinks for a while. Screen becomes a very dark grey, then it turns off and continues to do this cycle for about 20 minutes before it finally turn on.
I completely replaced the power board with absolutely no change to the problem. Any help would be appreciated
Thanks
Reply 23 : Samsung TV won't turn on
I have samsung LCD LN4051D. I had the clicking issue and the TV would not turn on. I replaced the power board, still no luck. Can you pls help.
Reply 24 : Samsung TV won't turn on
I have a similar problem. The TV won't power up and simply clicks. Eventually, today, it powered on after I placed a space heater nearby as the room was unusually cold; before this it usually powered on after I removed main power (power cord).
Having seen a lot of similar stuff like this I am fairly certain what is happening is what is termed a "Pick and Hold" problem. Simply put there is a relay... somewhere... that must first "Pick" or in other words establish contact. Picking a relay requires a good voltage kick but not necessarily a steady current supply, hence the click. Without adequate juice to hold the relay long enough for the "Hold" circuit to establish the "Pick" process actually fails. Its a bit confusing since the "Pick" must still hold the relay long enough to switch that holding over to the hold circuit. To "Hold" the relay on requires a fair amount of current; normally a secondary circuit takes over once the pick is made and often times its contactors use the relay to establish the "Hold" path; once this establishes the pick circuit stops. Sorry for the technicalities, but it might help someone wrap their head around their issue.
So what does happen is a "Pick" ie clicking but no "Hold". Okay some one mentioned start capacitors which does make good sense if the circuit uses classic relay techniques to establish the hold as capacitors will supply enough juice for the initial pick to hold just long enough for the actual "Hold" circuit to take over. Probably a bulls eye solution, which I hope is not the case as my eyesight is not what it was and I am not in the mood to solder in any capacitors but thanks to walke30 for giving a bullseye for which ones to replace.
The other thing that could, I hope, be the problem is firmware. On the LNXX650 models there is a firmware patch available from Samsung that address an intermittent power on/off issue. I hope this is the issue here but I think probably not.....
I am guessing it could be the actual relay as well since dirty contactors cause similar problems.
Aside from those things it will certainly be something related to inadequate initial pick current. Hence the space heater which warms up the semiconductors in the power supply and causes more current in those semiconductors this warmer circuitry will carry more current than colder ones and hence when operating at the edge probably is just enough to make things work.
And of course all this would be much simplier if I only had a Schematic of the power circuits.........
I'll keep you posted if this fixes my issue.
Reply 25 : Samsung TV won't turn on
I have a LN52A650 with the same problems. However, my capacitors look fine (no bulging or leaking), but the relay is making a high pitched whine after the initial click. The relay is silent after any further clicks. Does this sound like a relay problem or is there no further whine because the capacitors have already discharged during the first click? If that latter is the case, would that indicate of problem with the capacitors?
Reply 26 : Samsung TV won't turn on
Had same problem with my Samsung LN46A650. Wouldn't turn on 18 months after I gave them $1900. That's about $105/month for a television.
Samsung didn't care, despite the fact that it's happening to a lot of people, so I joined this class-action lawsuit.
http://www.lieffcabraser.com/contact...amsung-lcd.htm
If you're fed up, you should too.
Reply 27 : Samsung TV won't turn on
http://www.avsforum.com/avs-vb/showthread.php?t=1230144
http://www.avsforum.com/avs-vb/showthread.php?t=1226111&highlight=robotec
Reply 28 : Samsung TV won't turn on
http://www.samsung.com/us/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=02010100&prd_mdl_cd=&prd_mdl_name=LN40A650A1F
Reply 29 : Samsung TV won't turn on
Hi Chimchim1959, did you ever find a solution? I'm experiencing a very similar problem and have also noted the temperature dependence.
In my case when the TV is cold (say <=17C) and you turn it on, it displays an image for a couple seconds and then goes black. Sound continues and shining a flashlight at the screen indicates that the image is still there - just no back light!
My current work around is to crank the room up to >20C at which temperature the TV starts up fine..!
A lot of people are suggesting that the problem is related to the "t-con board" which is available for ~$70-150US... Any thoughts?
Cheers.