Lg 47LH40-UA

[oldhippie100]

I'm a newbie to the forum.I have a Lg 47LH40-UA it started to smell hot so i unplugged it.left it off for awhile then tried to turn it back on.came on with a picture like this one.then it shut it's self off.and every time I try to turn it on it tries to come on and then shuts off.HELP PLEASE!! any ideas

[tom66]

Re: Lg 47LH40-UA

OK, sounds like a defective inverter or bulb-to-frame arcing. Take the back cover of the TV off and get pictures.

[oldhippie100]

Re: Lg 47LH40-UA

ok will do

[oldhippie100]

Re: Lg 47LH40-UA

ok pictures attached Circled is where it looks brown and smells burnt

[tom66]

Re: Lg 47LH40-UA

Focus on the blue/cyan capacitors near the bottom right corner of this board (near the connectors.)
https://www.badcaps.net/forum/attach...0&d=1387126259

Do they look burnt to you?

[oldhippie100]

Re: Lg 47LH40-UA

yes they do..never seen that before..they are burnt

[oldhippie100]

Re: Lg 47LH40-UA

these are burnt

[tom66]

Re: Lg 47LH40-UA

Quite a common fault. They can be replaced. Can you get a closer picture of the markings on them?

[oldhippie100]

Re: Lg 47LH40-UA

they are both blue i can read only one it say( 33J eku or 6ku hard to see) it is 6ku

[oldhippie100]

Re: Lg 47LH40-UA

on the board where they are connected one says C407 and other one says C402

[tom66]

Re: Lg 47LH40-UA

Maybe an idea to remove them and see if the readings are clearer.

[oldhippie100]

Re: Lg 47LH40-UA

1 says (33J 6KU) and the other Says (54J 6KU) and that is all there is on them
the board model number is ( eax56851901/31 )

[oldhippie100]

Re: Lg 47LH40-UA

don't know if this helps
The actual numbers on the Capacitors are 33J EKU and 54J EKU
numbers on the board are C402 and C407

[oldhippie100]

Re: Lg 47LH40-UA

I'm Sorry the numbers on the Capacitors are 33J 6KV and 54J 6KV

[budm]

Re: Lg 47LH40-UA

They are 33pf 5% 6KV and 54 pf 5% 6KV.

[oldhippie100]

Re: Lg 47LH40-UA

Yeah it must be cross referenced cause if you go here.
http://www.alektrotech.de/shop/de/ko...-33pf-6kv.html

it has 33pF / 6KV (33J 6KV) I guess i'm on the hunt for them Capacitors.
I thank you for all your help

[budm]

Re: Lg 47LH40-UA

http://www.mouser.com/ProductDetail/...qsKwZY%2fD0%3d

I did not do the complete search on mouser for the 5% one.

[oldhippie100]

Re: Lg 47LH40-UA

yeah here is a blown up view of my board (Capacitor).and the one behind it says 54J 6KV I'm so glad you mentioned 33pf and 54 pf it saved me now to try and find them.. hey budm where would i look on a local level? electrical supply places or what?

[budm]

Re: Lg 47LH40-UA

I do not believe you will find them in local store since these are used mainly in high voltage circuit such as the backlights inverter. Mouser and Digikey, or EBAY will be the place to look. I will look at electronics recycle place to see if I can find them on old boards I collect.
So you need the 33 and 54, one each? If I find them this Sat I can mail them to you since they will fit into regular envelope.

[oldhippie100]

Re: Lg 47LH40-UA

wow that would be cool...I'm a bit confused..the guy at Radio Shack told me that the 33 and 54 didn't mean nothing.that it was for the location on the board.but the 6KV meant 6000 volt and now I'm confused.so any one woll work as long as it's 6KV..enlighten me please