Author Topic: 100GEA 420FZ0S Component....  (Read 358 times)

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Offline Tony.TTopic starter

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100GEA 420FZ0S Component....
« on: May 20, 2024, 02:39:40 pm »
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
 

Offline kundewayne

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Re: 100GEA 420FZ0S Component....
« Reply #1 on: May 27, 2024, 03:59:57 am »
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.
 

Offline Phoenix

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Re: 100GEA 420FZ0S Component....
« Reply #2 on: May 28, 2024, 06:05:17 am »
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
 


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