Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

Quick update....I replaced the power board and all is well. Found a newish board pulled out of a cracked module on ebay. $70 with free shipping and now I'll be able to watch The Military Channel or a movie during the Super Bowl! Screw You North Korea! You're efforts to destroy my tv were as lame as that awful movie....


CB

Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

OK....so still no Stby voltage......nothing on the LV side of the board. I measure 169vdc across the big filter caps. I've checked (replaced) most of the PFC circuit components....the bad cap, the two FET's (18NM60N) the MUR 460G, even the two Bridges...still no joy.

I just ordered a replacement power board off EBAY but I'm still energetic about fixing this board. What do you all think?


CB

Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

Thanks Fellas! I'll check these and let you know.


CB

Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

Transformer is labled:
12S-LP03 KE-02B
KYUNG-IN 120418 BA
EBJ61470604


CB

Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

C614 is a 220pF cap. Thats what led me to suspect that the damaged cap is the same value.

CB

Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

I was going to look at those. The traces go to one side of the transformer nearest these two transistors and the two bridge rectifiers. I cant seem to cross reference this transformer (inductor or current transformer?). Of course I left my meter at home so no checking till tomorrow...

CB

Re: LG 55LM6200 no Stby 3.5vdc caused by North Korea

Here are the pics. The pdf is a pic of the board that Sniper82 posted with an arrow and a note pointing to the suspected same cap.


CB...

Ok folks....as it says in the title.....I'm suspecting that North Korea killed my TV. We were watching "The Interview" on New Years day and not 15 min after completing the movie.....the TV went black. What really sux is that the movie did not live up to the hype at all......so why did you do this to me North Korea??

Anyway...back to the issue

I checked the Power board and found that C603 was burned beyond recognition. The board is a EAY 62512801 Rev 1.0. I downloaded the service manual however it does not have a schematic of the power board. There...

Re: LG 47ls4500 no power

Hello Mr Sniper and all others
I have a LG EAY62512801 Power board with a bad (burned up) C603 cap. I was hoping that you might be able to look at your board and tell me what the value is of your cap. I don't know if your cap is C603 but looking at your board and mine....it looks like the circuits are very similar and making an educated assumption, I would suspect they are the same value. Unfortunately, The service manual doesn't have a Power Board schematic...that I've been able to find. The attached pdf is your board with a arrow and note. Thanks...