Bad Caps in Monitor?

[Dark Prognosis]

I have 4 samsung LCD's and they all work brilliantly one of them is like 5-6 years old. Same with the Dell monitors I own. However the 2 HP monitors I have had fail constantly.

Then your time is short as Samsung is notorious for saving 5 dollars via the One Hung Lo shit brand of capacitors.  If they would get rid of the cheap Chinese shit and stick a Japanese built one in their places I would go back to Samsung.

[Excavatoree]

Dave, just make sure they are 105C low ESR units, with a high ripple current rating, preferably with a spec that includes a ESR at 10kHz and 100kHz.  Best to get a few footprints as well, you will need them in various lead spacings to suit various boards. Best to include a few 2200/16  units as well, and some 2200/10 units. Do not bother with any 6.3V units as they are pretty much the same size as 10V units.

I remember it wasn't a trivial task to get capacitors that fit in the space of the old cap,  had at least as high of a voltage rating, had equal or better ripple current rating than the specifications of the bad capacitors, and had the longest life expectancy.   

Of course, the monitors with supplies I fixed just by blindly choosing capacitors with long life are still working - when they fail I'll just replace.   

I know it's an old monitor, but if anyone needs a list of all caps to replace in a ViewSonic VGS2230 complete with Digikey Part numbers, let me know.  (both power supply versions)  They threw out several at work, I managed to fix all of them. 

Strangely, the View Sonic branded monitors (made by ChiMei) had the bad capacitors, while the ChiMei branded monitor I bought had better capacitors.  Of course, the LCD panel went bad on that one.  Go figure. 

[mariush]

I have 4 samsung LCD's and they all work brilliantly one of them is like 5-6 years old. Same with the Dell monitors I own. However the 2 HP monitors I have had fail constantly.

Then your time is short as Samsung is notorious for saving 5 dollars via the One Hung Lo shit brand of capacitors.  If they would get rid of the cheap Chinese shit and stick a Japanese built one in their places I would go back to Samsung.

Actually Samsung are patriotic and only almost only South Korean capacitors in their monitors... Samwha and Samyoung (though if I remember correctly, Samyoung actually just outsourced the production of some series to GSC which is bottom of the barrel manufacturer).  In their laser printers I see some Lelon capacitors.

[Zopsi]

Everyone has something to say about samsung. I like my samsung monitors. Did anyone have a look at that video? I would like to know if anyone thinks that issue is capacitor related so I can order parts and fix it before the weekend (sorry to be pushy).

[tom66]

I have 4 samsung LCD's and they all work brilliantly one of them is like 5-6 years old. Same with the Dell monitors I own. However the 2 HP monitors I have had fail constantly.

Then your time is short as Samsung is notorious for saving 5 dollars via the One Hung Lo shit brand of capacitors.  If they would get rid of the cheap Chinese shit and stick a Japanese built one in their places I would go back to Samsung.

Actually Samsung are patriotic and only almost only South Korean capacitors in their monitors... Samwha and Samyoung (though if I remember correctly, Samyoung actually just outsourced the production of some series to GSC which is bottom of the barrel manufacturer).  In their laser printers I see some Lelon capacitors.

I've seen quite a few Capxon, Samxon and JH caps in Samsungs. The Samxon seem okay, but the Capxon and JH are rubbish.

[Dark Prognosis]

Everyone has something to say about samsung. I like my samsung monitors. Did anyone have a look at that video? I would like to know if anyone thinks that issue is capacitor related so I can order parts and fix it before the weekend (sorry to be pushy).

I loved my Samsung monitor too until I uncovered the dirty secrets of what they do.  Still love the quality of the LCD from them but having craptastic caps is just not acceptable.

[Dark Prognosis]

I have 4 samsung LCD's and they all work brilliantly one of them is like 5-6 years old. Same with the Dell monitors I own. However the 2 HP monitors I have had fail constantly.

Then your time is short as Samsung is notorious for saving 5 dollars via the One Hung Lo shit brand of capacitors.  If they would get rid of the cheap Chinese shit and stick a Japanese built one in their places I would go back to Samsung.

Actually Samsung are patriotic and only almost only South Korean capacitors in their monitors... Samwha and Samyoung (though if I remember correctly, Samyoung actually just outsourced the production of some series to GSC which is bottom of the barrel manufacturer).  In their laser printers I see some Lelon capacitors.

Yes, those are in there but they are not the ones that fail they are normally the brand known as Capxon which, from what I read, are from China.  Capxon is of the lowest grade caps YET Samsung uses them (along with the others you mentioned that aren't the problem normally).

[Monkeh]

At least they're not cheapo Teapos.

[tom66]

At least they're not cheapo Teapos.

Teapo are bad, but not as bad as Capxon... half of my bad cap pulls are Capxons.

[Monkeh]

At least they're not cheapo Teapos.

Teapo are bad, but not as bad as Capxon... half of my bad cap pulls are Capxons.

On the flip side, I've only had two or three bad Capxon caps, and dozens of Teapos in all sorts of devices.

And the name.

[tom66]

At least they're not cheapo Teapos.

Teapo are bad, but not as bad as Capxon... half of my bad cap pulls are Capxons.

On the flip side, I've only had two or three bad Capxon caps, and dozens of Teapos in all sorts of devices.

And the name.

I'll regard both as crap - recently pulled 6 Teapos from a computer PSU.

[SeanB]

I won't say about the other equipment Samsung makes.......

[Dark Prognosis]

I won't say about the other equipment Samsung makes.......

Heheheh.

What got me was this so-called national pride of Samsung and that made me laugh.  Business has no national borders and their god is the almighty currency.  If Samsung had this "national pride" bullshit you wouldn't find any Chinese crap caps intermixed with South Korean made ones.

Some people need to pull their heads out of their collective nationalistic butts and realize that corporations don't give one damn about anything but profit.

[gregariz]

I also recently replaced these little timebombs from a monitor supply.

Since this has been going on for so long I find it difficult to believe that everyone is not aware of the problem or the fix. I suspect their use is now intentional and more like planned obsolesense rather than anything else. A convenient scapegoat that is now not the manufacturers fault

[T4P]

Dave, just make sure they are 105C low ESR units, with a high ripple current rating, preferably with a spec that includes a ESR at 10kHz and 100kHz.  Best to get a few footprints as well, you will need them in various lead spacings to suit various boards. Best to include a few 2200/16  units as well, and some 2200/10 units. Do not bother with any 6.3V units as they are pretty much the same size as 10V units.

I'm looking at rubycon, which ones will you recommend ?

[Dark Prognosis]

I also recently replaced these little timebombs from a monitor supply.

Since this has been going on for so long I find it difficult to believe that everyone is not aware of the problem or the fix. I suspect their use is now intentional and more like planned obsolesense rather than anything else. A convenient scapegoat that is now not the manufacturers fault

I agree and the reason I agree is that after much research, and my own personal experience, the caps die shortly after the warranty runs out.  Coincidence that so many happen like that?  I think not.

As far as low ESR ratings go I was directly told that doesn't matter in the case of the caps that always fail in the 215tw (or similiar monitors) but people will religiously follow their dogma I was told as well.

[tom66]

Sony and Panasonic seem to exclusively use Japcaps, which have proven reliability.

I had an Orion CRT TV (just a 14" Argos special) which used Rubycons and one Panasonic cap.

I also agree, it's deliberate on the part of the manufacturer. It's not a coincidence that the R87 series of Samsung TVs died at 13-14 months old. I think they were testing the water. Now it's closer to 18 months but that is pathetic.

[mariush]

Dave, just make sure they are 105C low ESR units, with a high ripple current rating, preferably with a spec that includes a ESR at 10kHz and 100kHz.  Best to get a few footprints as well, you will need them in various lead spacings to suit various boards. Best to include a few 2200/16  units as well, and some 2200/10 units. Do not bother with any 6.3V units as they are pretty much the same size as 10V units.

I'm looking at rubycon, which ones will you recommend ?

Rubycon ZLH, ZLJ, ZLK
Panasonic FM or FR are also very good choices.
 

[T4P]

Dave, just make sure they are 105C low ESR units, with a high ripple current rating, preferably with a spec that includes a ESR at 10kHz and 100kHz.  Best to get a few footprints as well, you will need them in various lead spacings to suit various boards. Best to include a few 2200/16  units as well, and some 2200/10 units. Do not bother with any 6.3V units as they are pretty much the same size as 10V units.

I'm looking at rubycon, which ones will you recommend ?

Rubycon ZLH, ZLJ, ZLK
Panasonic FM or FR are also very good choices.

Thanks maurish ...