LG 42LW5500 strange problem

[nomoresonys]

Re: LG 42LW5500 strange problem

I haven't had one with that problem lately but would heat it, just to confirm that it was the issue, that's after testing about everything else and was pretty sure that was the problem, best fix is to send the board to someone who will reball or replace the chip I suppose.

[diif]

Re: LG 42LW5500 strange problem

Thanks for the answer.
Ok, I will look but I am also looking from answers in here to understand what is better and normal
On youtube I could posibly find maybe untrue unreal even stupid things.

Also found here in forum a post https://www.badcaps.net/forum/showth...68717&p=817319
where someone was saying to heat at 350C ? (exactly for this bga chip)
What is that about?

350c will be the numbers on the display of the hot air station, its not the temperature at the board which will be lower.
I have my hot air set to about 380c for rework.
In order to reduce thermal shock the whole board needs heating to around 100c before adding extra heat to the processor area to carry out the reflow. Whilst I use a proper rework station the advice of holding the board over a gas stove for preheating is sage.