LGE2132 BGA replacement

[tw2005]

Thought I'd share a happy ending. had a LG LED TV, you know the ones that the backlights last about 2 years @ 2014. Anyway This one had a shorted main processor LGE2132. Not a huge chip and relatively thin.

I'd got hold of a cheap board to swap in but found the IC for only $15 USD.

Sometimes you just have to have a go, about 20 bucks Aussie, nic e challenge.

anyway, Hot air station got the old one off clean, always a challenge without the best gear.

Chip arrived pre-balled, cleaned up the old site, used a sandwich press and cake stand as a pre-heat, good dose of flux, line d the chip up by eye best I could, hot air from above and flowed.

Cooled down , placement looked pretty close and miraculously booted up and all functions , display and inputs 100%.

Boards no longer available and $150 -200 used over here.

Feeling pretty damn good

[tom66]

Re: LGE2132 BGA replacement

Damn, that's impressive, especially considering it was a bit of a "hack job" to put it on. Not bad at all!

[dick_barton]

Re: LGE2132 BGA replacement

Nice job.

[dskall]

Re: LGE2132 BGA replacement

Ya I'm still trying to remove them successfully without damage to board

[attainteddragon]

Re: LGE2132 BGA replacement

nice one tw.

[maxvalutech]

Re: LGE2132 BGA replacement

Good one - nothing ventured nothing gained! Yes board prices here often ridiculous e.g LG plasma of 2009 main they want $200 whereas can get same set in working order for $90 (recently got one for $50 !!!).

[tvtimmy]

Re: LGE2132 BGA replacement

Thats why you are one of my heroes!

[tw2005]

Re: LGE2132 BGA replacement

Damn, that's impressive, especially considering it was a bit of a "hack job" to put it on. Not bad at all!

I'm going with Amateur or Novice. I have a hunger for it, just don't have the gear. heaps of LGs have BGA issues , seems mandatory they all fail that way around 2010-11. Got a really nice 47" has this chip

[tiny68]

Re: LGE2132 BGA replacement

Good work. Apologies for a delayed inquiry on this.
I just found what looks like a short on the LGE2132 BGA of the main board of LG42LB5610 LED TV. How did you conclude that this was the likely problem before you decided to replace it?
I noticed that the 3.5V supply line from the power board was dropping to about 2.1V when connected to the main board. When I separately provided 3.5V to the main board from my bench PS, it was drawing ~0.6Amps and the BGA was getting quite warm. Nothing else appeared to be getting warm, although the optical output was lit up.
I'm just curious as to your diagnosis method as it might help me decide whether to have a go at installing a re-balled chip myself, but I'm not 100% sure this is the faulty part.

Thanks,

Andrew