(Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I would still clean those pads with alcohol! Those traces are "easy" to fix.

Is there no parts list in the service manual so you can replace those parts and give it a try?

Did you try using a "glassfiber pen"? You can scratch and search for the traces.

Thanks for advices, maybe i'm gonna do someting like that as a last chance.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I put 6870s-1172a into Google and several Chinese sites show part of the board but sadly not the part you want. There is a Polish site which, if you look at the translation, is also about a liquid spillage. There are some images but you have to sign in to see them.

Thank you, i check there but get nothing.

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

Why did you say that? is there someting wrong there at pictures?

NO. The other side didn't have the same arrangement so there's really no way to figure out what value the caps and missing resistors are.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

It's not looking good. Maybe if you hold onto it for a while, you can find another with the same panel. That's probably your only chance.

Why did you say that? is there someting wrong there at pictures?

[Moreno83]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

Did you try using a "glassfiber pen"? You can scratch and search for the traces.

[Moreno83]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I would still clean those pads with alcohol! Those traces are "easy" to fix.

Is there no parts list in the service manual so you can replace those parts and give it a try?

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

It's not looking good. Maybe if you hold onto it for a while, you can find another with the same panel. That's probably your only chance.

[Scotty16]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I put 6870s-1172a into Google and several Chinese sites show part of the board but sadly not the part you want. There is a Polish site which, if you look at the translation, is also about a liquid spillage. There are some images but you have to sign in to see them.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I tried my best; first one the big picture, and then left to right as like rigth to left (upside down).

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

Put up some pics of the other board. It should be pretty much the same, but reversed. Mine was anyway.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I call them address boards. I looked through my box of scrap boards, but unfortunately I didn't have the one you need.

Omg thank you so much you spend time for that. There is a lot of them but i have no luck...

So both boards are different, so i need to track traces and try to figure out.
I'll let you know... Thanks again.

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

What I'd do is find the matching circuit on the left address board.

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I call them address boards. I looked through my box of scrap boards, but unfortunately I didn't have the one you need.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

The cap I marked is clearly damaged. It looks like on end is gone. The hard part is determining the correct value. I'd replace everything there.

Thanks for answer lookimback,

Okay i'm gonna keep that cap(C218) in my mind. Yes those traces 100% damaged, not conducting, broken.(after celaning oxidation this damages shows itself up. (Btw i'm using cellulosic thinner not sentetic one, i always using this to clean PCB after solder someting. And i pretty sure it's never damage traces like that. And i already tried brush some GND traces on LCD's circuit to findout if the thinner damages, but not. So i might sure while LCD working as wet, oxidation with voltage caused this damage.

And yes i know lots of PCB's has some soldering pins but no resistor or caps connected.(on my LCD's PCB there is lots of empty spaces around) So schematics diagram says for empty ones (NC) not connected. So i can't find schematics yet :\. So if we talk about one of this damaged trace, the right one of the picture, if i just fix it, its prove R234 was there, becasue trace directly go that resistor. And other trace looks same for R233. I just wanna fix this area but need to know missed resistors values :\.

I found the LC320EUN-SDV1 PDF(http://help-scheme.com/?wpfb_dl=15639), (It's the barcode model number back of the LCD itself), and this PDF tells everything about the LCD, and talks about how to connect T-CON to source driver circuit with 100ohm resistors,(PDF Page 32) but there is no open schematics about source right and left driver circuits.

Btw the second picture of my post, right source circuit boards model number is, LC320EUD. I search schematics with this number, got nothing .

Still no idea how can i find resistor and cap values... Waiting your suggestions Thanks...

And a quick question: What you call this long PCB's ( right and left , LCD driver circuit or someting?) maybe i got a chance to find a big picture of it google images.

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

The cap I marked is clearly damaged. It looks like on end is gone. The hard part is determining the correct value. I'd replace everything there.

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

Those three missing resistors were probably never there to begin with. Most PCBs can be assembled in multiple configurations for different TVs. I'd say replace all the resistors and the caps, and you may have a chance. My TV had been sitting in storage for 2 years before I got it, so the corrosion was bad.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I don't know if I'd immediately say it's not repairable. I fixed this over a year ago and it's still working. It took a lot of time, but it was worth it. I think cleaning with thinner may have been a bad idea though. I just used some isopropyl alcohol (91%).

https://www.badcaps.net/forum/showthread.php?t=42650

I read your thread lookimback, and congratz you did a great job there. And i can see the damage on second picture. But if i compare with mine, i had very clear circuit board . So i still have good feelings. I just wondering about disconnect one side. I wish to try that eheh.

Bad News: Disconnected right side(damaged) from T-CON doesn't effect. Left side didn'T came life.

[nomorebeer]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I don't know if I'd immediately say it's not repairable. I fixed this over a year ago and it's still working. It took a lot of time, but it was worth it. I think cleaning with thinner may have been a bad idea though. I just used some isopropyl alcohol (91%).

https://www.badcaps.net/forum/showthread.php?t=42650

Water damage on the panel or beer such as the one you are experiencing will not be affordable to repair. The entire screen will need to be replaced which is to expensive to be worth it.
Sorry for the bad news

More than likely beer has gotten into the Tab bond Ic pack Not fixable sorry.

Thanks a lot for reply guys! Actually the picture i put the first message i find from internet, i couldn't take a picture when i sending message becasue TV was take a part.


Here is i record my LCD while playing some movie here;

https://youtu.be/X3a93GUQaJc

So i find another another video on youtube it's looks very similar my problem. I don't want to be a pesimist but i still feeling i have a chance to fix it :\.

here is the video looks like my problem;

https://www.youtube.com/watch?v=uLOGAJCrAGg


And i used thinner just on PCB like the little area i attached first message.(only on the couple resistors, the damaged area)Never touched the tab bond ( i guess you call the plastic sticky connectors lke that). And i carefully check the whole right and left soruce circuit i'm pretty sure no damage aorund there. Nothing looks like wet, tab bonds looks very extremly clear and fine.

So still i wanna fix the damaged part, so what value resistors i should use there for R233, 234, 224. Or only way to find the soruce driver PCB's schematic?

Thanks...

[lookimback]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

I don't know if I'd immediately say it's not repairable. I fixed this over a year ago and it's still working. It took a lot of time, but it was worth it. I think cleaning with thinner may have been a bad idea though. I just used some isopropyl alcohol (91%).

https://www.badcaps.net/forum/showthread.php?t=42650

[Nick's Tvs]

Re: (Regal Brand TV) 32" LG LED display Beer Damage (LC320EUN) (Pictures inside)

Water damage on the panel or beer such as the one you are experiencing will not be affordable to repair. The entire screen will need to be replaced which is to expensive to be worth it.
Sorry for the bad news