Samsung 226BW Bad Caps warning

Loque · 20 Jan 2011 at 12:52

I've got a screen thats suffering from the same problem. I am skilled enough to replace the caps, I just cannot for the life of me, get the damn thing open. Which is a shame, because I don't want to break it. It's a nice screen and it cost me 315 quid about 4 years ago. It's a Belinea 102035W. If anyone knows how to open it, please let me know. I would love to fix it.

Relentless81 · 20 Jan 2011 at 15:29

Does anyone know if Samsung continue to use these componants in newer models?

PCM2 · 20 Jan 2011 at 15:58

I haven't opened them up to check but exepriences so far would suggest it was a 'bad batch' issue. I wouldn't hold this issue against Samsung as you're ruling out a huge and successful player in this field. All manufacturers have had their duff monitors and I have used, am using and will continue to use, recommend and purchase Samsung monitors (of course not exclusively) for myself and others. http://forums.overclockers.co.uk/showthread.php?t=18210598&highlight=capacitor+username_pcm2. This will be particularly true when OLED monitors become mainstream.

C64 · 20 Jan 2011 at 18:43

PCM2 said:
I haven't opened them up to check but exepriences so far would suggest it was a 'bad batch' issue.

Not being rude or being funny but that doesn't answer the question it doesn't put me off buying samsung again after I think about it but...
Are samsung still using crapxon caps ? I agree caps can go on pretty much any brand but these capxon things do seem like a crud brand ?

I wouldn't buy a samsung or any monitor IF it had this same brand of caps in it put it that way

MikeHunt79 · 20 Jan 2011 at 19:45

C64 said:
Yea good luck getting anywhere with that, you WILL have to get a solicitor a smalls claims court thing going etc etc

I tried on mine with the etailer I bought mine from they said the product didn't have an inherent fault.

Ordered my caps yesterday and they arrived today that auction place guy is really good even threw in some solder wire.

Waiting on my de soldering braid to come now.

Well I've not tried to claim under the SOGA myself, but if you have an expensive product then it is an option, but by the sounds of it it is more hassle... You can get solder braid at a high street electrical store which is a competitor to ocuk but I'm sure you know which one.

PCM2 said:
I haven't opened them up to check but exepriences so far would suggest it was a 'bad batch' issue. I wouldn't hold this issue against Samsung as you're ruling out a huge and successful player in this field. All manufacturers have had their duff monitors and I have used, am using and will continue to use, recommend and purchase Samsung monitors (of course not exclusively) for myself and others. http://forums.overclockers.co.uk/showthread.php?t=18210598&highlight=capacitor+username_pcm2. This will be particularly true when OLED monitors become mainstream.

While this thread is concerned with a Samsung screens, all the Samsung screens I have owned have been fine (touch wood), I think the best thing to do is go for the screen with the longest warranty and hope for the best.

LED backlit screens should be more reliable than CCFL though, as LED backlit screen do need high voltage inverter circuits that seem prone to failure, especially in old laptops!

C64 said:
Not being rude or being funny but that doesn't answer the question it doesn't put me off buying samsung again after I think about it but...
Are samsung still using crapxon caps ? I agree caps can go on pretty much any brand but these capxon things do seem like a crud brand ?

I wouldn't buy a samsung or any monitor IF it had this same brand of caps in it put it that way

The only way to know for sure is to take the product apart, or to look at photo's posted by someone else who has already taken them apart.

It not only Samsung who are guilty of using poor quality components, the notoriously unreliable DFI motherboards used poor quality caps (Jamcom banded I think?), and some owners have replaced them and ended up with a much more reliable motherboard...

That bad caps site does have quite a lot of info about bad brands of caps and manufacturers who use them if you want to know more.

Gana · 21 Jan 2011 at 06:30

PCM2 said:
I haven't opened them up to check but exepriences so far would suggest it was a 'bad batch' issue. I wouldn't hold this issue against Samsung as you're ruling out a huge and successful player in this field. All manufacturers have had their duff monitors and I have used, am using and will continue to use, recommend and purchase Samsung monitors (of course not exclusively) for myself and others. http://forums.overclockers.co.uk/showthread.php?t=18210598&highlight=capacitor+username_pcm2. This will be particularly true when OLED monitors become mainstream.

I understand what you are saying there. But my question is, when I have bought products from this manufacturer which were without question faulty and to be honest not of an acceptable quality why should I reward them for this by buying yet another of their products? These companys will continue to float the market with "bad batch" issues if they think that people still buy their products. If I fork out 600 quid, I want more than just leave it up to luck whether or not it turns out to be "a bad patch" So I'll buy a benq or something, at least they haven't disappointed me yet.

Gana

PCM2 · 21 Jan 2011 at 08:26

I know it is frustrating but I also think some people here are being a bit myopic. I have dealt with people and distributed thousands upon thousands of monitors from all different manufacturers. I have also acquired feedback from many other users. Samsung are one of the better manufacturers for monitors today for build quality and image quality. Reliability has not been been a particular issue either for most models - I will make use of some of my contacts and put a word in regarding CapXon capacitors and the complaints raised here and elsewhere and see if I can find anything out. I am sure you would like to know the current state of play regarding the capacitors.

@Gana. If you have done your research you would realise that BenQ are exactly the manufacturer to avoid if weight of bad experience concerns you. On the plus side most problems with BenQ monitors are immediately apparent. But don't rule out ticking timebombs from other manufacturers (see following post) just because you haven't experienced them yourself. Even Dell UltraSharps have been known to go 'boom' after some time and I have experienced this first hand. As stated above LED backlit monitors tend to offer greater levels of reliability due to the lower power throughput and heat generated by the backlight.

MikeHunt79 · 21 Jan 2011 at 09:05

PCM2 said:
I know it is frustrating but I also think some people here are being a bit myopic. I have dealt with people and distributed thousands upon thousands of monitors from all different manufacturers. I have also acquired feedback from many other users. Samsung are one of the better manufacturers for monitors today for build quality and image quality. Reliability has not been been a particular issue either for most models - I will make use of some of my contacts and put a word in regarding CapXon capacitors and the complaints raised here and elsewhere and see if I can find anything out. I am sure you would like to know the current stste of play regarding the capacitors.

If you can ask them to use Panasonic or Nichicon capacitors, these tend to be the best quality in my experience.

Also, have you found the newer LED backlit screens to be more reliable than the older CCFL backlit screens? I'm keeping my eye out for a new screen and LED backlit seems the way forward IMO...

PCM2 · 21 Jan 2011 at 09:32

I have generally found that heat does play a large part in whatever goes wrong inside a monitor. I would say that WLED backlit monitors have not really been around long enough to assess this comparatively but I haven't had any severe problems with LED-backlit monitors at all yet. I did have a problem with a Dell I remember particularly well that literally went 'pop' and started smoking. It was a 2407WFP-HC and it was apparently related to capacitors - this uses a very strong broad-gamut CCFL backlight and it is like a radiator when you turn the brightness up. There was a well documented case of Nichicon Capacitors suffering this fate in Dell Optiplex desktops - http://en.community.dell.com/dell-b.../01/dell-on-the-nichicon-capacitor-issue.aspx. Now I don't know a lot about capacitors, only the complete end product. I hope that if Samsung are still using 'cheap' capacitors that they can operate normally for a long time if the screen is a low heat output LED-backlit screen with external AC/DC 'brick'.

Edit: I've spoken to the guy who dealt with the 'blown up' 2407. He has dealt with issues stemming from CapXon (and other) capacitors in the past and has found they are extremely widespread in LCD monitors. He has opened up monitors from Viewsonic, Acer, ASUS, Samsung, HP, BenQ, Hanns.G, Dell, LG and Philips and found CapXon capacitors. So it seems that Samsung are being used as a bit of a scapegoat here and it's a much wider issue than that! It's probably just that Samsung monitors (and TVs) are so popular that the issue tends to be reported more frequently with their name attached. He also said that he has yet to come across any such problems in LED-backlit monitors but it's still early days.

Diggsy · 21 Jan 2011 at 10:10

C64 said:
Ordered my caps yesterday and they arrived today that auction place guy is really good even threw in some solder wire.

Waiting on my de soldering braid to come now.

Good to hear you got the caps quickly. You don't need any de-soldering braid, just use the soldering iron to heat the underside of one leg and push it through once loose, then do the same with the other leg.

Then all you need to do is heat the remaining solder, and if needed, use a little fresh solder and it should come off the board, or at least the worst of it will.

Do this with all 3, then simply install the new ones. Just be VERY careful to note the correct polarity, and don't trim the legs until you have got them soldered in.

Gana · 21 Jan 2011 at 12:31

Interesting reading there PMC2. I do realize that several of the bigger brands, like Benq, Acer and Dell most likely are just as problematic when it comes to using cheap components in their products. I just bought Samsung products, and of course I blame them when the electronic with their name on it goes bad. What I meant to say is, that these companys are getting too greedy, using cheap components in their products to increase profit. That is how capitalism works, I'm fine with that. But that does not imply that I have to accept and reward it by supporting their brand or products with my spending when they let me down several times. Yes Samsung does make good products and sometimes those good products remain good for an acceptable amount of time. But is that really good enough or should the end users start demanding a bit more and doing so by NOT buying their perhaps faulty products. Samsung is not a scapegoat, it was their cell phone I had and not HTCs. It was their monitor I bought and not Benq. Honestly just because Benq or another company makes crap products at time do not mean it is okay. You are an inteligent person and know this. So we wait for OLED and hope that this will fix the capacitor issue.

Gana

PCM2 · 21 Jan 2011 at 12:48

I am certainly raising the issue with Samsung and will press them for an answer. Even if they can assure me that we won't see a repeat of this kind of thing from their LED backlit monitors of present or OLED monitors in the future it will be a bit reassuring at least. I will certainly be keeping an eye on this issue regardless of what (if anything) Samsung say about it.

C64 · 21 Jan 2011 at 13:30

Diggsy said:
Good to hear you got the caps quickly. You don't need any de-soldering braid, just use the soldering iron to heat the underside of one leg and push it through once loose, then do the same with the other leg.

Then all you need to do is heat the remaining solder, and if needed, use a little fresh solder and it should come off the board, or at least the worst of it will.

Do this with all 3, then simply install the new ones. Just be VERY careful to note the correct polarity, and don't trim the legs until you have got them soldered in.

You mean heat the solder on the flat side right and pull the capacitor out ? well i have my braid may as well use it I guess ?

I am doing this today i shall take pictures at every stage including taking the board out etc

Loque · 21 Jan 2011 at 15:30

C64 said:
You mean heat the solder on the flat side right and pull the capacitor out ? well i have my braid may as well use it I guess ?

I am doing this today i shall take pictures at every stage including taking the board out etc

sounds good. Should be really helpful to me when I eventually have another bash at trying to get my monitor open.

Diggsy · 21 Jan 2011 at 20:00

C64 said:
You mean heat the solder on the flat side right and pull the capacitor out ? well i have my braid may as well use it I guess ?

I am doing this today i shall take pictures at every stage including taking the board out etc

Heat the solder on each leg of the cap on the underside of the board if you know what I mean. Should just pop out once the solder begins to soften.

I had a neighbour (retired engineer) help me out as me and soldering were not a good combination. I have since improved, but am in no way great at it.

C64 · 21 Jan 2011 at 23:43

Diggsy said:
Heat the solder on each leg of the cap on the underside of the board if you know what I mean. Should just pop out once the solder begins to soften.

I had a neighbour (retired engineer) help me out as me and soldering were not a good combination. I have since improved, but am in no way great at it.

yea I got ya heat the pins and pull gently about to start now

C64 · 21 Jan 2011 at 23:57

okay my boards completely different and looks like i have caps that i have no idea what they are the uf isnt written on one or two mines same as earlier poster sorry stole your pic to use here

what are the following ones the one at top ignore that can see now thats 47uf 50v

but i dont even have the one on the left and uf isnt written on the one in the bottom center all it has is 50v

C64 · 22 Jan 2011 at 00:29

anyone know where i could find out what the caps are that dont have the uf rating written on them ?

C64 · 22 Jan 2011 at 00:49

mine are all different i bought 2x 820uf and i need 4 there is no 680uf on mine ?????????????????

f sake

C64 · 22 Jan 2011 at 01:01

after all the caps i ordered all i had were 3 correct ones rest are different be aware that different panels have different caps guys