Official Samsung LNxxA750 Owners Thread - Page 415

OMG!! Never thought I would find someone with the same issue.
The restarting problem rarely happens. Probably 2 times in 6 months.

Did you ever find out the problem?

Any luck with Samsung Support?
I called 3 times. No help.

I put some pics of the problem are below
(sorry about the size but I don't know how to do thumbnails):
TV just powered ON




TV after a few minutes



TV finally back to normal

[/table]

I'm no expert and don't know how these things are put together but I think the CCFLs are pretty much like overhead flourescent lights. Given your pictures I would say there are multiple CCFLs in the TV and one of them is slow to start. When that occurs in an overhead light the problem is usually either a bulb burning out or a bad ballast.

Just an update.

So I opened it up and I couldn't find anything wrong visibly with the caps.
My soldering equipment is quite crappy. So I just tried a little re-soldering of the connections.

It SEEMED like the TV started up faster and cleared up faster but after a day it's back to the usual.

1) Anyone know where a I can buy reasonable Soldering equipment and GOOD replacement CAPS?? I think I will see if replacing them will help.

2) Took some pics, so if anyone can tell me if anything seems wrong, please let me know.

I have had my LN46A750 repaired twice for the on/off/bad caps issue. The first time when it was 2 years old and the second time about a month ago at age 3 for the same thing. I'm glad I had paid for the 3 year extended warranty.

Now I am having what I think is the same problem you are. The left side of the tv shows multiple images, like the image was dragged down across the screen and left a few imprints. It seems to only happen when the tv has been turned off for a long period of time, overnight for example. Tapping on the top of the tv also seems to make it start working correctly. Almost like it is something that is loose that is the issue, however tapping on it while it is working doesn't not make the issue come back so maybe not. I can't believe this tv is dying after only 3 years.

Yeah it should last way longer than that. I don't know if I'm lucky or what but after almost three years we haven't had any problems with ours whatsoever. Good thing too because we have no extended warranty. And it gets a LOT of use as my stay-at-home wife has it on pretty much all day.

The problem hasn't appeared this week. It's really odd, maybe it fixed itself. Just wishful thinking. Maybe my slapping of it knocked something back in place

Can someone point me in the direction for reasonably priced parts for a 46" 750? I'm assembling a unit from scratch. I currently have a bare panel but nothing else.

All suggestions welcome!

Class action settlement notice for capacitors:
http://www.samsung.com/us/capacitorsettlement/

Interesting. Thanks.

I wonder what kind of proof we have to show that we have had the capacitor problem. I have experienced those symptoms, but it is working ok now. And I haven't messed with or fixed anything.

Confirmed my TV is the right model to be covered. If I've never had the issue, I presume I just consider myself lucky? The suit looks to only apply if you've had the work done (or they will evaluate your TV for free within 18 months)?

Don't know of any troubles with mine after about 3 1/2 years (almost 4) of use. However, I might be looking to hand this over to my parents in favor of a 3D LED HDTV down the road this year... Shouldn't be too bad down the long hall.

For anyone that may be too lazy to click on the link and read the details, as I was.

If you have experienced a Covered TV Symptom(s), or if you experience a Covered TV Symptom(s) within eighteen months after March 2, 2012, the Settlement of this Lawsuit provides for Samsung Electronics America, Inc., to offer to you one or more of the following benefits, as applicable, subject to certain specified conditions:

(1) a free service visit for qualifying Televisions to determine if your Television has a problem covered by the Settlement and, if it does, to fix the problem; or
(2) the refund of expenses you incurred, prior to March 2, 2012, to evaluate or diagnose the problem covered by the Settlement up to $150; or
(3) the refund of expenses you incurred, prior to March 2, 2012, to fix the problem covered by the Settlement up to $150 for replacement of capacitors, or up to $300 if the repair involved replacement of the power supply board; or
(4) the refund of shipping expenses, including insurance costs, you incurred, prior to March 2, 2012, to fix the problem covered by the Settlement, up to $150, or
(5) a $300 fully transferable debit card if you reported to SEA, prior to March 2, 2012, the problem covered by the Settlement, but did not get it fixed, and you now no longer possess your Television.
(6) In addition, a payment of $50 if, after March 2, 2012, you require more than one repair to fix the problem covered by the Settlement

Wow, I was just checking in on the thread to see if it was still active. I was afraid to jinx my set by saying how much I still loved my 750, the picture is still awesome. I know as soon as I say it, something will go wrong. The settlement is certainly interesting, I guess we have 18 months on the capacitors, which is great. I have nothing but good things to say about samsung, I originally had a LN 71 series which had a great picture but had problems, Samsung exchanged it for 750 and so far after 3 plus years no issues with turning on or off. I very rarely get some pop or static when changing channels when the set's been on for an extended time, but that may be more related to cable box I'm thinking.

Anyway hope all who are happy with their sets continue to be and those that have issues get them fixed and covered by samsung.

+1. Knock on wood!

I bought my 52" 750 in November 2008 and have had no problems with it to this point. It seems in the past three months that it is taking longer to come on then before (20-30 seconds longer) but still works fine when it does come on. Until I read some of these issues going on I thought it was a cable box going bad. Anyone have any comments on this possibly relating to the cap problem?

oh crap. you JUST missed the window for the class action settlement on this. hopefully you can still get something out of it.

http://slickdeals.net/f/3977028-Sams...ement-Lawsuit?

I bought mine around the fourth of july in 2008, so I'm pretty sure that is in with the settlement somewhere.

I thought we were good to report a problem for 18 months after March 2?

Your symptoms are exactly related to bad capacitors. Replacing them is not hard at all if you know how to do basic soldering. Just don't use those crappy Radio Shack caps, get them from Digikey or other vendor. Having said all this, I did let Samsung take my old 52A750 and exchange it for a brand new UN55D6000 last October since they did not have any repairmen in my area to fix the A750, although they did charge me 550 for the new TV And, just last week I filed a claim with Samsung (as reported earlier, see Slickdeals thread) regarding their class action lawsuit and got confirmation that I will be receiving $300 since my old TV was never "professionally" repaired and was disposed of.

I just filed a repair request and had the TV looked at. The capacitors were bulging and were most definitely bad but now I'm concerned with what further damage may have been caused by the TV while clicking and trying to turn on. I'm not sure how long or how many times my son or wife tried to turn the TV on under these symptoms and in retrospect it has been taking a while to turn on for some time now. I see the PSB is covered under the class action settlement but the wording is confusing. It states that if confirmatory discovery demonstrates that the covered TV symptoms can lead to damage of the PSB and authorized service personnel determine that it needs to be replaced it will be covered. My concern is that the TV may work fine after having the capacitors replaced but the symptoms the TV experienced as a result of the defect may have caused damage to the PSB leading to premature failure. Has anyone had their PSB replaced under this settlement? Does it have to be not working at or or can it be replaced because damage was likely to have occurred to it as a result of the defect? Obviously there must be some correltion between the bad capacitors and the PSB being damaged but how likely is the PSB to be working now but with a diminished life expectancy due to these symptoms?

Also, the tech that came to my home didn't have any of the required capacitors with him so he took the PSB to replace them when the come in to the shop. I see the settlement states that Samsung will pay $50 if, after March 2, 2012, you require more than on repair to fix the capacitor issue covered by the settlement. Since they came out to take my PSB and will have to come back to replace it is this considered 2 repairs since it's 2 service appointments?

Well I just fell victom to the clicking while trying to power on...sucks since I loved this tv since I purchased back in 08. before opening the tv i called samsung 1-888-899-7602. They will be sending someone out to fix the issue for me which is great!!. I wonder what my next tv will be now:cool:

Once you get it fixed it will be good for a long time. I had mine repaired and they replace the entire board not just the capacitors. Its been 2 years since. If you like your TV I say keep it. The 750 has awesome PQ compared to some newer edge lit LED tvs. So back to lottery picking if you want to switch to the new sets.
Edited by aznmode - 9/14/12 at 12:34pm

Well I don't have an A750(mines actually a A530) but it finally went from 2 bad capacitors. Even though I'm in Canada, Samsung still did the one time free repair and now its back up and running in a new home.

The thing gone bad so quick though. It was perfectly fine one day and next it didn't or took forever to start. Never even heard the clicking sound.

Yup they came and replaced the whole board from me as well. there were two blown caps. you are right the 750 PQ is great!

What did it cost you to have it fixed?

Just a phone call to Samsung:eek:

Wow! How did you manage that? Is it under warranty still?

Just called them up. It is a one time free fix deal. I have no warranty.

As long as it's a faulty capacitor(s) Samsung will cover the repair regardless of warranty status. It's a known issue with certain LCD models including the a650, a550 and Samsung is owning up to it and fixes them for free.