Samsung 244T ...stuck in standby

[tuk]

Re: Samsung 244T ...stuck in standby

could be ..its just a bit funny that if I swapped jonnies values around then his list would be the same as mine

me:
CM809 10v@100uF
CS802 50v@10uF

jonnie:
CM809 50v@10uF
CS802 10v@100uF

[tuk]

Re: Samsung 244T ...stuck in standby

wait tho ...that means our part lists are the same ..the only question is which way round the 2 caps go ...I could go ahead and order ...and then just check the caps when I remove them to put in the new ones

can someone confirm the above isn't nonsense ..I'v been staring at this all day and a little tired ..but want to get on and get them ordered

[PCBONEZ]

Re: Samsung 244T ...stuck in standby

Check actual voltage.
If either are over 10v that's where the 50v goes.
.
Also post pic showing locations so people can look for pics elsewhere that might give a clue.
I think there's quite a few pics of that board right here in this forum.
.
.

[tuk]

Re: Samsung 244T ...stuck in standby

Check actual voltage.
Also post pic showing locations so people can look for pics elsewhere that might give a clue.
I think there's quite a few pics of that board right here in this forum.

just to check..can you see my pics in post #19 of this thread? ..maybe I have to make them visible or something?

[PCBONEZ]

Re: Samsung 244T ...stuck in standby

No I can't see the values in that pic..... LOL

[tuk]

Re: Samsung 244T ...stuck in standby

did a forum search for "244t" but couldn't find any decent pictures of the power board ..found a couple on google images but they are not much better than the one I used ..if someone has a link or can upload a decent pic of the power board for a 244T...I will label it for future ref
--------------------

here is my shopping list so far ..based on this Capxon datasheet and ordering from Farnell ...if someone could cast an eye and also offer suggestions where I'v run aground ...would be much obliged

1) #### for the 47uF@50v couldn't find a lower esr than the CApXon & for the 47uF 63v could not find a higher ripple & lower esr

2) Could not find datasheets for the last 2 on the list so went with a guesstimate ...the 450v is vertical to the board and where the pins meet the board there are 2 silver square feet ..but I'm thinking these are just normal through hole and not snap in?

3) For the first one I'v included the values for FR,FM,FC for comparison ..I decided to go with the FR where possible as the values seemed slightly better


CM856
1000uF 25v 13x20mm 2340mA 0.025Ohm CAPXON
1000uF 25v 10x25mm 2470mA 0.018ohm 10000hrs@105 PANASONIC EEUFR1E102L
1000uF 25v 12.5x20.. 2600mA 0.018ohm 5000hrs@105c PANASONIC EEUFM1E102
1000uF 25v 10x30mm 1815mA 0.035ohm 3000hrs@105c PANASONIC EEUFC1E102L


CM861
2200uF 10v 13x20mm 2370mA 0.025Ohm CAPXON
2200uF 10v 10x25mm 2470mA 0.018ohm 10000hrs@105c PANASONIC EEUFR1A222L


CM851
CM852
CS852
1000uF 35v 13x25mm 2780mA 0.019ohm CAPXON
1000uF 35v 12.5x20.. 2600mA 0.018ohm 10000hrs@105c PANASONIC EEUFR1V102


CS806
47uF 63v 8x11.5mm 400mA 0.22ohm CAPXON
47uF 63v 8x11.5mm 405mA 0.342ohm 2000hrs@105c PANASONIC EEUFC1J470 ####


CS808
CM810
CP811
47uF 50v 8x11.5mm 360mA 0.20ohm CAPXON
47uF 50v 11x11mm 250mA 0.65ohm 1000hrs@105c NICHICON UPS1H470MED ####


CM809
100uF 10v 5x11mm 242mA 0.31ohm CAPXON
100uF 10v 5x11mm 280mA 0.30ohm 2000hrs@105c PANASONIC EEUFM1A101


CM813
CS802
10uF 50v ???????? ?????? ??????? ??????????? CAPXON ...couldn't find data sheet
10uF 50v 11x11mm 250mA 0.65ohm 1000hrs@105c NICHICON UPS1H470MED


CP803
100uF 450v 18x41mm 560ma ???????? ??????????? CAPXON ...couldn't find data sheet but someone posted these values
100uF 450v 25x30mm 0.93A 1.658ohm 2000hrs@85c PANASONIC ECOS2WP101CA

[jetadm123]

Re: Samsung 244T ...stuck in standby

Maybe to avoid the minimum order that Farnell charges, have you considered ordering a cap repair kit through Ebay? The US seller below has sold many of these kits. Be sure to compare his parts list to yours.


http://www.ebay.com/itm/Repair-Kit-S...item35ae194f98

[tuk]

Re: Samsung 244T ...stuck in standby

thanks for the suggestion jet, but I tend to avoid ordering from the states as stuff can take weeks to get here ..and with xmas just round the corner maybe even longer ..as it says in the small print

International mail delivery varies from country to country. If you don't receive your shipment within 3 weeks, contact us for further direction.

it has something to do with clearing customs ..unless you spend a small fortune on postage there is no way to cut the time down ...I'm not sure this monitor has weeks left in it...unless I upgrade to a more powerful hairdryer

also those kits dont tend to include the 450v cap ...on the up side I just snagged a great pic of the powerboard from that ebay ad & the parts list seems to check out though only farads are mentioned and in what quantity ..no esr,ripple etc

[tuk]

Re: Samsung 244T ...stuck in standby

well it seems I have no choice but to order from the states ..as neither RS, Farnell or Rapid stock All the caps... seems hard to believe they can't be bought in the UK but there you have it

It turns out the items can be ordered from the states via Digi-Key's UK site ..they assure me they have an arrangement with customs and delivery takes 3 days...they say I am liable for the VAT(import tax 20%) ..but are vague on how I pay this exactly ...I have heard of people being charged £30 for a £10 item and their package being held by customs until its paid...so I hope this doesn't turn into an expensive nightmare

digikey want £12/$19 dollars for delivery..so in total excluding vat and any other hidden charges the order will come to roughly £20/$31...the other option is ordering from the u.s. using Farnell but they want £16/$25 for delivery...but they are a bigger company and don't mention anything about VAT so maybe the import tax is included in the delivery costs
---------------------------------------------------------------

CS806
47uF 63v 8x11.5mm 400mA 0.22ohm CAPXON
47uF 63v 8x11.5mm 405mA 0.342ohm 2000hrs@105c PANASONIC EEUFC1J470 REPLACEMENT


CS808
CM810
CP811
47uF 50v 8x11.5mm 360mA 0.20ohm CAPXON
47uF 50v 8x13.5mm 440mA 0.35Ohm 2000hrs@105c NICHICON UBT1H470MPD1TD REPLACEMENT

can i use these 2 as replacements even though they have higher impedance?

CM813
CS802
10uF 50v ???????? ?????? ??????? ??????????? CAPXON ...could'nt find data sheet
10uF 50v 5X7mm 210mA 0.50ohm 2000hrs@105c UnitedCC EKZE500ELL100ME07D REPLACEMENT

CP803
100uF 450v 18x41mm 560ma ???????? ??????????? could'nt find data sheet but someone posted values
100uF 450v 7.5x40 800mA ???????? 10000hrs@105c UnitedCC EKXG451ELL101MM40S REPLACEMENT

...and in the absence of datasheets do these two seem like suitable replacements?

[PCBONEZ]

Re: Samsung 244T ...stuck in standby

CS806
47uF 63v 8x11.5mm 400mA 0.22ohm CAPXON
47uF 63v 8x11.5mm 405mA 0.342ohm 2000hrs@105c PANASONIC EEUFC1J470 REPLACEMENT


CS808
CM810
CP811
47uF 50v 8x11.5mm 360mA 0.20ohm CAPXON
47uF 50v 8x13.5mm 440mA 0.35Ohm 2000hrs@105c NICHICON UBT1H470MPD1TD REPLACEMENT

Look for lower ESR.
You are going up by 50%. That's a pretty big step.

CM813
CS802
10uF 50v ???????? ?????? ??????? ??????????? CAPXON ...could'nt find data sheet
10uF 50v 5X7mm 210mA 0.50ohm 2000hrs@105c UnitedCC EKZE500ELL100ME07D REPLACEMENT

KZE is -probably- good enough but, lacking actual data, if they have Panasonic FM or FR that would be better.
What series Capxon is it?

CP803
100uF 450v 18x41mm 560ma ???????? ??????????? could'nt find data sheet but someone posted values
100uF 450v 7.5x40 800mA ???????? 10000hrs@105c UnitedCC EKXG451ELL101MM40S REPLACEMENT

This is good if the numbers are right.
What series is it?
.

[PCBONEZ]

Re: Samsung 244T ...stuck in standby

For that matter what series are CS806 and CS808, CM810, CP811 ?

[tuk]

Re: Samsung 244T ...stuck in standby

For that matter what series are CS806 and CS808, CM810, CP811 ?

not sure exactly ...I'm assuming the CapXons are from this datasheet found in the FAQ ..how do I find what series they are?

[tom66]

Re: Samsung 244T ...stuck in standby

It turns out the items can be ordered from the states via Digi-Key's UK site ..they assure me they have an arrangement with customs and delivery takes 3 days...they say I am liable for the VAT(import tax 20%) ..but are vague on how I pay this exactly ...I have heard of people being charged £30 for a £10 item and their package being held by customs until its paid...so I hope this doesn't turn into an expensive nightmare

With Digi-Key you pay shipping, then when the parcel arrives you pay 20% VAT on the door using your card or cheque PLUS a £8 - £15 "service charge" levied by FedEx/Parcelforce etc.

Mouser prepay VAT (so no doorstop charge), but shipping is some £10.

The best place is sometimes eBay, if in the UK, some offer shipping discounts for multiple orders. Most of my caps are ebay sourced. Of course remember to get low ESR ones.

I wish Maplins sold low ESR caps. I mean how hard would it be to keep a small inventory (say 20 each) of 100u, 470u, 1000u and 2200u Panasonic FM's in 6.3V, 10V and 16V? That would cover 98.82% of the caps I replace and I wouldn't mind paying a bit extra especially if there is no shipping charge.

[retiredcaps]

Re: Samsung 244T ...stuck in standby

how do I find what series they are?

It is written right on the cap sleeve. It is either a 2 or 3 letter code.

[tuk]

Re: Samsung 244T ...stuck in standby

thanks, will open it back up tomorrow ..meanwhile here is a better pic of the 244T power board

[tuk]

Re: Samsung 244T ...stuck in standby

the caps are CapXon VENT :KM and GL series....

1)
The datasheet for KM doesn't show impedance ..what is a suitable rule of thumb when finding replacements in this case?

2)
Accord. to the GL datasheet the series only goes up to 63v ...yet the 450v@100uf is a GL series(I opened it back up to double check) ???

[tuk]

Re: Samsung 244T ...stuck in standby

.

CM856
CAPXON KM105c VENT P620
1000uF 25v 10x20mm 710mA ???Ohm

CM861
CAPXON GL105c VENT C620
2200uF 10v 13x20mm 1690mA 0.040Ohm

CM851
CM852
CS852
CAPXON GL105c VENT C624
1000uF 35v 13x30mm 1950mA 0.036Ohm

CS806
CAPXON KM105c VENT P602
47uF 63v 8x11.5mm 140mA ???Ohm

CS808
CM810
CP811
CAPXON KM105c VENT P626
47uF 50v 6.3x11mm 115mA ???Ohm

CM809
CAPXON KM105c VENT P618
100uF 10v 5x11mm 105mA ???Ohm

CM813
CS802
CAPXON KM105c VENT P626
10uF 50v 5x11mm 48mA ???Ohm

CP803
CAPXON GL105c VENT C610
100uF 450v 18x41mm ???mA ???Ohm

e2a: just seen this in another thread...

The CapXon KM are not low ESR so ESR is not shown in the data sheet...
... go by the ripple ... and get low ESR caps anyway because they should have been used there anyway.

As I said:

Try to avoid extreme 'upgrades' with the ESR. [Which means excessively lowering ESR.]
In -some- circuits too low of an ESR can cause problems.
.
There is no such thing as too high of a ripple rating.
The Ripple Current spec is essentially a max current rating.
.
Also, you can safely use caps of a higher voltage rating than original as long as they physically fit.
The voltage rating is a max limit, not a target value.
.

[PCBONEZ]

Re: Samsung 244T ...stuck in standby

CP803
CAPXON GL 100uF 450v 18x41mm ???mA
-
This a custom ordered or obsoleted size so not in data sheet.
It's the cap on AC input and those rarely fail. Usually don't need to replace.
Is an odd series to find used there too. [Over-kill.]
If you want to replace it anyway then find a 100uF 450v 105C with approximate same can size [and fits board] with the highest Ripple.
.
The normal thing to do with a mystery size is to use the closest cap in that series with the same can size.
The closest 18x41mm has ripple of 3600 mA - BUT, that's at 100kHz for the GL series.
The AC caps are typically done at 100Hz or 120Hz.
The replacements you look up probably will be so you need to know the Ripple at the lower Frequency.
There is a Freq. conversion factor in the GL data sheet for 120Hz and it makes ripple roughly 2600 mA at 120Hz.
That's probably still a lot of over-kill for that application.
Just get the 100uF/450v [that fits] with the highest Ripple and you should be fine.
.
.

[tuk]

Re: Samsung 244T ...stuck in standby

CP803
There is a Freq. conversion factor in the GL data sheet for 120Hz and it makes ripple roughly 2600 mA at 120Hz.
That's probably still a lot of over-kill for that application.
Just get the 100uF/450v [that fits] with the highest Ripple and you should be fine.

not so easy finding a 100uF/450v with a decent Ripple ...wide range of snap-on, but not so many through-hole ...might leave the 450v unless I have to...there is a place in town that does a NICHICON UPW2W101MRD for $16...ripple is probably too low but I'l add to the end of list anyway

For other replacements went with Panasonic FR, FM, and FC (in that order). ...where the panasonics dropped to 1000 hours @ 105°C or high impedance went with Rubycon instead ..anyone have experience of these caps?


CM856
CAPXON KM105c VENT P620
1000uF 25v 10x20mm 710mA ???Ohm 2000 hours @ 105°C

PANASONIC EEUFR1E102L
1000uF 25v 10x25mm 2470mA 0.018Ohm 10000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1800654
--------------------------------------------------------



CM861
CAPXON GL105c VENT C620
2200uF 10v 13x20mm 1690mA 0.040Ohm 6000 hours @ 105°C

PANASONIC EEUFR1A222L
2200uF 10v 10x25mm 2470mA 0.018Ohm 10000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1800626
--------------------------------------------------------



CM851
CM852
CS852
CAPXON GL105c VENT C624
1000uF 35v 13x30mm 1950mA 0.036Ohm 6000 hours @ 105°C

PANASONIC EEUFR1V102
1000uF 35v 12.5x25mm 2600mA 0.018Ohm 10000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1800671
--------------------------------------------------------



CS806
CAPXON KM105c VENT P602
47uF 63v 8x11.5mm 140mA ???Ohm 2000 hours @ 105°C

PANASONIC EEUFC1J470
47uF 63v 8x11.5mm 405mA 0.342Ohm 2000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1848470
--------------------------------------------------------



CS808
CM810
CP811
CAPXON KM105c VENT P626
47uF 50v 6.3x11mm 115mA ???Ohm 2000 hours @ 105°C

RUBYCON 50YXF47MEFC6.3X11
47uF 50v 6.3x11mm 244mA 0.4Ohm 2000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1144633
--------------------------------------------------------



CM809
CAPXON KM105c VENT P618
100uF 10v 5x11mm 105mA ???Ohm 2000 hours @ 105°C

PANASONIC – EEUFM1A101
100uF 10v 5x11mm 280mA 0.3Ohm 2000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1219453
-------------------------------------------------------



CM813
CS802
CAPXON KM105c VENT P626
10uF 50v 5x11mm 48mA ???Ohm 2000 hours @ 105°C

RUBYCON – 50YXF10MEFC5X11
10uF 50v 5x11mm 100mA 1.5Ohm 2000 hours @ 105°C
http://uk.farnell.com/jsp/search/pro...sp?sku=1144632
--------------------------------------------------------



CP803
CAPXON GL105c VENT C610
100uF 450v 18x41mm ???mA ???Ohm


NICHICON UPW2W101MRD
100uF 450v 25x50mm 350mA 1.5Ohm 8000 hours @ 105°C
http://uk.rs-online.com/web/p/aluminium/7153293/
--------------------------------------------------------

[PCBONEZ]

Re: Samsung 244T ...stuck in standby

Your choices all look good.
Both Rubycon and Panasonic are fine.
FR or FM to replace GL is good. They need that much.
About anything works for KM.
.
Given what they have to offer right now I'd skip the 450v unless you have some reason to think it's bad.
.
You're getting the hang of pickin' caps.
Good job.
.