Dec 1, 2020, 9:03 PM
Post #3 of 5
Re: [jts1957] LG 42LB5600 stand by power only
[In reply to]
The one I'm dealing with is an LGE8220. They're available but I didn't want to just swap it out. In the mechanical realm the last thing you want to be is a guy who just swaps parts out and hopes for the best. I could just buy a whole replacement board and say I "fixed" the TV but really I didn't do much and certainly didn't learn anything.
Anyway, I was hoping to maybe get the datasheet for the particular chip and find out where the appropriate "power on" signal comes in, and the signal to the PS to power up comes out, then measure to see if they're present when I hit the power button.
I figure if there's no signal into the chip when I hit the power button, then the chip is not the issue and I have to back up further to see where the signal is stalling. If there's a signal going into the chip but nothing coming out, I know the chip is a dud.
To me (novice) that seems like the right approach.
Trouble is, darn it all if I can't find the datasheet for the thing.
1- is my approach a correct one?
2- where on earth can I find a datasheet for the thing?
Thanks for helping out a noob.