I obtained an LG 55LA6200 that was about to go to the landfill. Figured I would attempt to rescue it 
The problem with the set is that when powered on the red standby light flashes a couple times then goes off. The power supply remains on. 3.5v, 24v and 12v feeds are all good, 84v to the LED strips but from what I understand that's pretty typical when they are off for this set.
The original owner said that during an electrical storm 2 of the HDMI ports stopped working (1 and 2) but the set functioned ok on HDMI 3 for a while after then stopped turning on so I figured maybe that processor gave up the ghost.
When the set is on the processor heatsink temp rapidly rises until it gets up to around 150c so the chip is toast. Doesn't appear to be any heat damage or warping yet to the pcb. The voltage at all the regulators appears to be within reason.
Normally I would just source a salvaged mainboard for $60-70 from ebay or something but this particular one seems a bit hard to find in stock anywhere but I did find a chinese source for the media processor (LGE2122).
I have all the necessary equipment to flow a replacement chip onto the board but figured before I bothered with it I would run it past the forums and see if there has been much success swapping blown processors or of there are any "gotchas" involved. Or perhaps somebody knows where I can obtain a working board (LG EBT62368508 (EAX64872104(1.0)))
Thanks
The problem with the set is that when powered on the red standby light flashes a couple times then goes off. The power supply remains on. 3.5v, 24v and 12v feeds are all good, 84v to the LED strips but from what I understand that's pretty typical when they are off for this set.
The original owner said that during an electrical storm 2 of the HDMI ports stopped working (1 and 2) but the set functioned ok on HDMI 3 for a while after then stopped turning on so I figured maybe that processor gave up the ghost.
When the set is on the processor heatsink temp rapidly rises until it gets up to around 150c so the chip is toast. Doesn't appear to be any heat damage or warping yet to the pcb. The voltage at all the regulators appears to be within reason.
Normally I would just source a salvaged mainboard for $60-70 from ebay or something but this particular one seems a bit hard to find in stock anywhere but I did find a chinese source for the media processor (LGE2122).
I have all the necessary equipment to flow a replacement chip onto the board but figured before I bothered with it I would run it past the forums and see if there has been much success swapping blown processors or of there are any "gotchas" involved. Or perhaps somebody knows where I can obtain a working board (LG EBT62368508 (EAX64872104(1.0)))
Thanks
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