Samsung SyncMaster 226BW

[starmanwarz]

Re: Samsung SyncMaster 226BW

Could be bad soldering on the logic board, or a dirty LCD ribbon. Reseat the ribbon cable between the logic board and the LCD and see if the situation improves.

I opened it once again,I reseated the LCD ribbon,caps are fine,took a look everywhere and it looks fine.I'm am starting to worry about a faulty GPU,even if I connected my LCD TV with a HDMI to DVI cable with no problems.

[Th3_uN1Qu3]

Re: Samsung SyncMaster 226BW

Is it possible for a cap to be dysfunctional even if it looks ok?

Yes, and a bad cap on the logic board could give the symptoms you are describing. First recap the whole power supply then if it still doesn't work we'll try other things.

[pr0cess0r]

Re: Samsung SyncMaster 226BW

Just to add to the succes story i fixed 2 og those monitor here !!! 820 and 330 caps.

[starmanwarz]

Re: Samsung SyncMaster 226BW

Could be bad soldering on the logic board, or a dirty LCD ribbon. Reseat the ribbon cable between the logic board and the LCD and see if the situation improves.

Thanks for the reply.I will try it when I open it to replace the caps.Anything else I should check?Is it possible for a cap to be dysfunctional even if it looks ok?

[Th3_uN1Qu3]

Re: Samsung SyncMaster 226BW

Could be bad soldering on the logic board, or a dirty LCD ribbon. Reseat the ribbon cable between the logic board and the LCD and see if the situation improves.

[starmanwarz]

Re: Samsung SyncMaster 226BW

I am experiencing a similar problem with my 226BW(S Panel).

It's not exactly the same,it doesn't go black and it doesn't function properly when it's heated.In my case,there are lines and boxes all over the monitor flickering very rapidly and it's more visible on white/"soft" colors.

It started yesterday acting really crazy,constant flickering and I couldn't watch the monitor for more than 5 minutes.This morning it was better,happening once every 5 minutes and at a much lower scale than yesterday.

I was able to find only 2 caps out of 7 in the market,and when I opened it only one of them didn't have a straight top,it was like the ones in the pictures in this thread but with no sign of leaks.The others were fine.I replaced the damaged one but the problem is still here.

I have plugged in an old CRT with a VGA to DVI adapter and a LCD TV and they were fine.I also tried a different DVI cable and power cable.

I will buy all 7 capacitors and change them all just to be safe but I wonder,could something else cause this problem?The other caps seemed ok,but even if I change them I don't think it will help.

[Couchy]

Re: Samsung SyncMaster 226BW

Hello all,

Another Samsung 226bw with bad cap problems. It has been ongoing for a few months but I've not had the time until now to try and fix it. Yesterday it took 3 hours for the monitor to finally warm up so that was the last straw. Opened it up, figured out which caps I had and what to replace them with from the info contained in this helpful thread.

I just placed an order at mouser.com for the following:

Mfr. #: 1 x EEU-FC1H2R2
Desc.: Aluminum Electrolytic Capacitors - Leaded 2.2UF 50V ELECT FC

Mfr. #: 1 x EEU-FM1H220
Desc.: Aluminum Electrolytic Capacitors - Leaded 22UF 50V FM RADIAL

Mfr. #: 1 x EEU-FC1H470
Desc.: Aluminum Electrolytic Capacitors - Leaded 47uF 50V

Mfr. #: 1 x EEU-FM1E331
Desc.: Aluminum Electrolytic Capacitors - Leaded 330UF 25V ELECT FM

Mfr. #: 5 x EEU-FM1E821L
Desc.: Aluminum Electrolytic Capacitors - Leaded 820uF 25V ELECT FM


Decided against replacing the big 150uF cap at position C105 as it looks to be in fine shape, and considering only replacing the five 820uF and one 330uF caps as they are the only ones that are bulging at the top... ordered the rest just in case.

Picture of my board below.

Will post with results when I complete the repairs. This is my first time soldering anything, wish me luck!

[Badcappy]

Re: Samsung SyncMaster 226BW

ok, thanks for the clues.
I will remember them in case that my second 226bw dies.
i love this forum!

[Scenic]

Re: Samsung SyncMaster 226BW

you could have used 16V caps instead, as they're on the 13V rail.
http://www.reichelt.de/?ACTION=3;ART...91;PROVID=2402

oh and by the way.. just goes to show how expensive conrad is in comparison.. (same cap, same values)
http://www.conrad.de/ce/de/product/421932/

the output voltages are printed on the PCB
https://www.badcaps.net/forum/attach...4&d=1296137292

[Badcappy]

Re: Samsung SyncMaster 226BW

Thank you guys, thank to you i saved 150 euro for a new display!
Here are some pics.
Dont be to rude on me, this was my first recapping.

[EGuevarae]

Re: Samsung SyncMaster 226BW

Hey,
i got the same problem!
I life in Germany and i cant find a 820uf 25v cap on the german net to buy.
Is there an other option to fix the 226bw? could i just use or 2x 1000uf 25v.

I found the little 330uf 25v. ( http://www.conrad.de/ce/de/product/4...45812&ref=list )

The 2 other caps (680uf 25v are looking perfekt)(but there available)

2x 820uf 35v if they fit (height) will be fine.

[Badcappy]

Re: Samsung SyncMaster 226BW

Hey,
i got the same problem!
I life in Germany and i cant find a 820uf 25v cap on the german net to buy.
Is there an other option to fix the 226bw? could i just use 2x 820uf 35v or 2x 1000uf 25v.

I found the little 330uf 25v. ( http://www.conrad.de/ce/de/product/4...45812&ref=list )

The 2 other caps (680uf 25v are looking perfekt)(but there available)

[Scenic]

Re: Samsung SyncMaster 226BW

I took some images of the steps in my replacement procedure and if any one needs them for something I am glad to share.

You can upload them here by clicking on "go advanced" (below the quick reply under the last post in a thread) and then using the "manage attachments" button below the post editor.

Images in jpg format need to be smaller than 2000x2000px and 3.81MB.
Shouldn't be an issue most of the time though.

[mounte]

Re: Samsung SyncMaster 226BW

Hi, just wanted to let you know that I popped up my 226BW, I saw the caps and wasn't sure of the specs. I found this thread an ordered a couple of new ones from mouser. Just replaced the three close to the inductor. Now the screen works perfect again.

I took some images of the steps in my replacement procedure and if any one needs them for something I am glad to share.

[EGuevarae]

Re: Samsung SyncMaster 226BW

I'd just like to say a huge thank you to EVERYONE in this thread.
huge.
HUGE.
Everyone here helped me with getting my 3 year old 226BW back up and running after flickering (probably really close to a seizure there at the end) at power on for about a week.

From the part numbers to the multiple parts vendors (Digi-Key).

Opened up the monitor and checked for what everyone was describing, and there they were. The 2 820's and the 330 were bulged at the top, all caps were CapXon btw.

Two day wait for the parts from Digi-Key and the 3 bad capacitors are sitting right next to my working 22" monitor.

So, thank you everyone.
You're awesome.

-Tom

Nice feeling,isn't it?

[Guthrie]

Re: Samsung SyncMaster 226BW

I'd just like to say a huge thank you to EVERYONE in this thread.
huge.
HUGE.
Everyone here helped me with getting my 3 year old 226BW back up and running after flickering (probably really close to a seizure there at the end) at power on for about a week.

From the part numbers to the multiple parts vendors (Digi-Key).

Opened up the monitor and checked for what everyone was describing, and there they were. The 2 820's and the 330 were bulged at the top, all caps were CapXon btw.

Two day wait for the parts from Digi-Key and the 3 bad capacitors are sitting right next to my working 22" monitor.

So, thank you everyone.
You're awesome.

-Tom

[EGuevarae]

Re: Samsung SyncMaster 226BW

Out of curiousity, I even tested my "bad" Capxon caps. These are caps that didn't bulge, but I removed anyways due to "guilt by association".

The 3 or 4 "bad" non bloated Capxons all tested above their stated uF.

I've seen that myself, but then if you can get your hands on an ESR meter, you'll find that most of the time they are out of spec. And in the case of the list of known bad brands,replacement is a preventive measure anyways ...

[retiredcaps]

Re: Samsung SyncMaster 226BW

Out of curiousity, I even tested my "bad" Capxon caps. These are caps that didn't bulge, but I removed anyways due to "guilt by association".

The 3 or 4 "bad" non bloated Capxons all tested above their stated uF.

[mastertheknife]

Re: Samsung SyncMaster 226BW

I took a random sample of my Rubycon 1000uF, 470uF, 2200UF caps (MCZ and ZL) and tested them for capacitance. All measured higher than the stated values.

If these are new 680uF caps measuring 450uF, I would say you got fakes or bad caps.

Thank you for the test. And yes, although i put ones that measured ~730uF. 6 out of the 8 measured ~450uF and the other two measured ~730uF, which are the ones i put in.
I will put new\old ones back when i receive the new fuses.

Thank you,
mastertheknife.

[mastertheknife]

Re: Samsung SyncMaster 226BW

Hi Mastertheknife!
I can't find any fuse, can you help me to find it?
Thank you

Hi, i circled the fuses in the attached picture.

mastertheknife