100GEA 420FZ0S Component....

[Tony.T]

I got a mainbord for a LG TV.

This component above givs me a unstable pwr_on signal.  Something is wrong and i located the signal to this chip.

Anyone knowing what kind of chip it is? Some say voltage regulator? Some say it is i microcontroller.  I would guess the last one is right.??!!!!

That means that i can not replace it with another chip i have that sais 100GEA 728UZ03   ??      It needs to be programed first.

Can someone please confirm this?

I cant find proper information on the web regarding this chip  100GEA 420FZ0S

The chip looks like this one....but the markings is not the same...

https://www.aliexpress.com/item/4000251963110.html

[kundewayne]

I got a mainbord for a LG TV.

This component above givs me a unstable pwr_on signal.  Something is wrong and i located the signal to this chip.

Anyone knowing what kind of chip it is? Some say voltage regulator? Some say it is i microcontroller.  I would guess the last one is right.??!!!!

That means that i can not replace it with another chip i have that sais 100GEA 728UZ03   ??      It needs to be programed first. basketball stars

Can someone please confirm this?

I cant find proper information on the web regarding this chip  100GEA 420FZ0S

The chip looks like this one....but the markings is not the same...

https://www.aliexpress.com/item/4000251963110.html

You're right to exercise caution when it comes to mainboard repairs for your LG TV.  We can analyze the following depending on your description:

The Issue:

The power-on signal on the mainboard of your LG TV is erratic.
You think there may be a problem with a certain chip (designated 100GEA 420FZ0S).
Problems:

It is challenging to determine the precise chip function—microcontroller or voltage regulator—without a schematic or service manual for your particular LG TV model.
Even if the chip is accurately identified, replacing it could be difficult.

[Phoenix]

100GEA looks like a programmable gate array. Definitely need the correct configuration on it to work.

https://www.worldwayelec.com/pro/renesas-electronics-corporation/100gea/2758763