Can you help identify this cap?

[Stevo_D]

Hi there this board is out of a 40inch Samsung TV LE40R73BD

The Board is Hansol and the code BN44-00134A Rev 1.5







I contacted Samsung and they sent an engineer to me for free, and he replaced the 2 large Capacitors 1000uF 25v with 1000uF 35v and the tv still doesnt work, he said it needs a new board... I THINK OTHERWISE!!

There is one he didnt replace (maybe he would after he 'charged me for a new board')

Anyway upon further inspecton one cap has gone black / brown and split, eventually breaking off when i tried to move it to see the numbers on it.
I cannot tell what numbers were on it but i'd hazard a guess it'd be the same as the one next to it which is 27J 6KV

Any help would be appreciated as im pretty sure this will cure my tv, now i have only basic knowledge in resistance etc.. but i can use a soldering iron and goto maplins and buy a part lol

[addytzu123]

Re: Can you help identify this cap?

Hi,

You are right, it is identical with the one from the right side. The specs are 27pF/6KV (27 pico farads at 6000V).
You should replace them both, as a pair.

Adi

[vinceroger69]

Re: Can you help identify this cap?

cpc have free delivery at no minimum order offer at the moment
http://cpc.farnell.com/jsp/bespoke/b...lp/webfree.jsp
some one may link you to the right capacitor i still have trouble using there website lol.

[tom66]

Re: Can you help identify this cap?

The engineer that Samsung sent is also incompetent (or Samsung is) because he has used NHG Panasonic, which are NOT suitable for switching power supply.

[Stevo_D]

Re: Can you help identify this cap?

lmao, thanks for the info guys.

Firstly i got inpatient lol.. i went down to Maplins and they have somthing that they said is reletivly the same their part number is WX49 so i brought it (just the one) and bingo its working like a charm!!!

Yes this guy was a proper cowboy... he even has his tools all over the TV backplate... i was cringing. It took him a good 5 mins in the back of his van to find the 2 caps to stick in and yet again my suspicions were right... he would have took this tv away, replaces the bad ceramic cap and sold it to me for £60 saying a new board was installed.

That cap i put in cost me 42pennies lol. albeit said it does'nt look the same but its doing a god job

Wish i had his number to call and tell him what a c@#t he is. The thing that bugs me mostly is how many others actually paid for this con that's going around. When he could have done it there and then.

Sooo, before i knock this tv out at a cheap price do you guys recommend i replace these capacitors as a whole or not and just leave it as its working?

[tom66]

Re: Can you help identify this cap?

I expect that capacitor to fail very quickly because it is definitely not going to survive the 3000V or so the TV uses to start the backlights.

[Stevo_D]

Re: Can you help identify this cap?

thats my problem though tom, i have scoured the internet and cant find and exact replacement.. or a pair

Unless you know where i can get one?

[tom66]

Re: Can you help identify this cap?

http://www.ebay.co.uk/itm/27pf-6kv-H...item19da541942

"ALSO USED IN SAMSUNG TVs"

[budm]

Re: Can you help identify this cap?

That looks like 50V rating cap.

[vinceroger69]

Re: Can you help identify this cap?

you can give these a ring there post and package price is ok no minimum order only in birmingham they may not have it on there site but i am sure they will have them in stock.
http://www.wiltsgrove.co.uk/

[Stevo_D]

Re: Can you help identify this cap?

Lol, i was searching for 27j 6kv hee hee.

Tom ur the man, just ordered them.

If a jobs worth doing its worth doing right!

[tom66]

Re: Can you help identify this cap?

That looks like 50V rating cap.

Yeah, certainly no more than 1kV. It will probably last a few seconds, I doubt it will last longer than a minute before it fails completely.

[Stevo_D]

Re: Can you help identify this cap?

Yeah, certainly no more than 1kV. It will probably last a few seconds, I doubt it will last longer than a minute before it fails completely.

you'd hate to know that it lasted a few hours constantly on using the hdmi input. and it got turned on and off about 30 times lol

The board says 97v on it... so doesnt that mean their is no more than that much running through the board?

[Stevo_D]

Re: Can you help identify this cap?

sorry 94v

[budm]

Re: Can you help identify this cap?

UL safety certification 94V-0 for PCB or insulation material used in product.

[tom66]

Re: Can you help identify this cap?

"94V" is just a PCB flammability code.

The bulb connectors have around 900V~1.5kV in operation and up to 3kV during striking, where the bulbs are made to light.

[Stevo_D]

Re: Can you help identify this cap?

ohhhh! im glad you guys know ur stuff. I thought the cap was for the backlight as from a very tight angle (before the fix) i could see the screens fuzzy background.

Hopefully these caps will arrive sat and i can complete the repair.. for now its staying off till they are changed. Dont want to do more damage to it.

BTW i got the TV for free a week ago from a friend at work, he said if u can fix it, sell it and keep the cash lol

What u wreckon its gonna be worth? i dont need it i have a 50" downstairs and 37 in the bedroom

[tom66]

Re: Can you help identify this cap?

40" 720p, I sell for around £180. May be able to get up to £200 as it is a Samsung (for some reason people believe they make good TVs.)

[Stevo_D]

Re: Can you help identify this cap?

yeah thats where i was with the price... and only cos its got a known label lol

[budm]

Re: Can you help identify this cap?

Just hope that when that cap failed it will not take out the secondary winding of the high voltage transformer.