Re: Suggestions to UpGrade Power Supply?
ReeceyBurger123,
"Replace all Wl, Wb, Xc and Pt series caps if your supply uses then defective caps and fail alot"
Have done a lot of searching about problems with this Samsung LED TV Power Supply and if caught early the 47 uF 160 V cap is always the one that fails.
I intend to keep a close check on this PS so want to upgrade the 47 uF 160 V cap and hope this will eliminate any other cap problems.
KenOlson
Senior Member
Last Activity: 03-30-2019, 12:50 PM
Joined: 06-13-2011
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Re: Suggestions to UpGrade Power Supply?
budm,
"It is not easy to find 47uF 160/200VDC LOW ESR cap..." Agree have checked a few US cap datasheets and more difficult than 1st thought.
Am wondering if Max ESR 5.291 is acceptable? To date the best I have found is 3.60 (All rated at 120 Hz and 20 C).
Also consider myself a beginner concerning Power Supply Caps so appreciate any suggestions.
From previous mention am guessing life expectancy for these caps is determined by max Voltage, Temp, ESR...
Thanks...Leave a comment:
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Re: Suggestions to UpGrade Power Supply?
tvtimmy,
"Maybe lay the new cap on its side..." Thanks for the tip! May have to do it.Leave a comment:
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Re: Suggestions to UpGrade Power Supply?
budm,
"That LED driver power supply is switching power supply so the replacement has to be LOW ESR type, you can also get the spec of the SAMWHA WL series cap to find something that will match the original spec"
Thanks for the tip! Did (attach 1) Big question is if SAMWHA caps meet their own specs. Since got this TV have been searching for successful repairs. Seems any general replacement switching power supply cap will work for some time. Even SAMWHA 47uF 160 V cap lasted for 4+ years.
...Leave a comment:
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Re: Suggestions to UpGrade Power Supply?
R_J,
"I would guess the additional heat from the transformer located below it helped cook it as the other 47/200 looks in better shape"
Any suggestions to overcome this problem?
ThanksLeave a comment:
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Re: Suggestions to UpGrade Power Supply?
budm,
"It is not easy to find 47uF 160/200VDC LOW ESR cap which should be used for that filter cap for the LED driver circuit.."
Question: If can find a suitable cap, do you think a LOW ESR cap is worth while in this circuit?
ThanksLeave a comment:
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Re: Suggestions to UpGrade Power Supply?
Forgot to mention that have searched the Internet to check if anyone has determined why these 47uF 160 V caps are failing but to date have found nothing.
My 1st guess is since this is an inexpensive TV, Samsung was trying to save money on caps.
Am thinking about upgrading this cap to 200 V as radiotvnut posted "Samsung 32" from 2012 (easy fix)" [url]http://www.videokarma.org/archive/index.php/t-264566.html[/url]
Am also wondering if it is worthwhile to use a low ESR, long...Leave a comment:
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Suggestions to UpGrade Power Supply?
Received a Samsung UN32EH4003FXZA LED TV with starting problems.
From experience with this model guessed it had bad cap(s) so checked the Power Supply and found the 47uF 160 V cap starting to bulge. The adjacent 47 200 V cap and all the other caps are OK.
I would like to upgrade the failing 47uF 160 V cap so appreciate any suggestions.... -
Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
I am a beginner but want to learn from others!
"...I would say low esr type like Panasonic Fr or Fc etc will work fine"
Question: Do you recommend "low esr" caps for all Main Board TV replacement caps?
Did some checking before asking and found "Equivalent series resistance wiki" [url]https://en.wikipedia.org/wiki/Equivalent_series_resistance[/url]
"...Aluminium and tantalum electrolytic capacitors with non solid...Leave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
Before finding the bad cap thought Samsung TVs had a "Good Reputation"
Googled and found "Samsung TV HomeElectronicsTelevisions Last updated: 06/29/2016 Consumer Complaints & Reviews"
[url]https://www.consumeraffairs.com/home_electronics/samsung_tv.html[/url] guess I was wrong!!!
read many posts like "I purchased a new 4K HDTV Samsung 40" television online and had delivered to my home. We began setting up the television immediately. The set up was in pictures rather...Leave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
Ltank,
"had to replace four 2200uf caps and a 1500uf 35v cap."
What are you using for replacement caps?
KenLeave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
"All Led tv's not just samsung as well as that series of cap lol"
Was impressed with New 2016 LG 1mm Thick Flexible OLED TV [url]https://www.youtube.com/watch?v=-uazGyw99e0[/url] so good reason to wait!!!
Reading some recent articles like "Samsung scraps TV LCD line in favour of flexible OLEDs by Julien Happich (June 14, 2016) [url]http://www.ledlighting-eetimes.com/news/samsung-scraps-tv-lcd-line-favour-flexible-oleds[/url] "Once the L7 line is converted...Leave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
"The Samwha WL series is defective as well as WB" Where did you find this info???
After much searching found something recent "The only "bad" brands I would honestly put above LTEC are Taicon and Hitano, TBH (although LTEC has been operating as one of Teapo's subsidiaries since April of 2005, so maybe LTEC has gone downhill since then). I'd tie Elite/Chinsan with LTEC (Elite are out of Thailand, however). Of course they are all unreliable and inconsistent compared...Leave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
"the Leds them selvs are pushed too hard and they fail in no time flat due to getting too hot"
Sound to me like a design flaw!
Is this problem unique to Samsung LED TV Model UN32EH4003 Series or to All
Samsung LED TVs?
KenLeave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
"The Samwha WL series is defective as well as WB"
Are there any Good Samwha cap series?
I did a quick check (37p) "The Hall of Shame - Badcaps Photo Montage" [url]https://www.badcaps.net/forum/showthread.php?t=424&highlight=good+samwha+capacitors&page=37[/url]
Then checked Capacitor Database - need help [url]https://www.badcaps.net/forum/showthread.php?t=20787&highlight=samwha[/url] only got "UHH OHH!! Error 404!!" [url]https://www.badcaps.net/index.php?pageid=404[/url]...Leave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
"...after replacing it be sure to turn the backlight down to below half way if not it will fail again very shortly with an Led fault" Thanks for tip!!!
Am wondering if Samsung did a design flaw (too low Voltage or did not consider possibility of Led faults) or poor QC?
KenLeave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
Mike,
Thanks for the cap info!
Forgot to ask, have you ever replaced the 47mF 200V cap (next to the 47mF 160V cap?
KenLeave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
"The Samwha WL series is defective as well as WB replace all WL and Wb."
Thanks for your comments!
This is not an expensive TV so what do you consider to be the most cost effective replacement Brand... for a permanent fix?
KenLeave a comment:
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Re: Samsung LED TV Model UN32EH4003 Bad Cap?
Mike,
Hoped that someone else had this problem!
Checked Samsung UN32EH4003FXZA - tries to start - problem found! [url]https://www.badcaps.net/forum/showthread.php?t=40665[/url]
We have same boards. Was interested that you posted this 09-24-2014 while the one am working on just happened. Am guessing difference due to amount time TV on?
"I replaced them with 47 mf 160 v and they are still going."
What Brand.... did you use? Glad to hear no failures!...Leave a comment:
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Samsung LED TV Model UN32EH4003 Bad Cap?
Thought the Bad Cap Plague was over until saw a bulging cap on a Samsung LED TV Model UN32EH4003 power supply (PD32GVO_CHS BN44-00554B)
Since there is a "Good" same size cap (except is 200V instead of 160V) next to the bad one am thinking Samsung used too low Voltage. (Attaching Photos)
Have never seen this brand.
Appreciate comments concerning reliability.
Thanks
Ken...
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