Where to find LG 65UQ75006LF EAX69830902 schematic and ZD1800 SOT23 zener?

Mark: LG
Model: 65UQ75006LF
Main board: EAX69830902



Hello everybody

I am looking for a schematic for the specific main board.
In case no schematic is available, does anyone know the part number of ZD1800?
It is probably a zener diode (package SOT23), but it is scratched and I am not sure about the part number.
As you can see, in the photo "17 AD2239" can be barely seen, but AD2239 probably refers to lot number.

Thank you for your time!

Have a nice day
Stavros

The diagram is only available at the LG design office. Clean the component with isopropanol, take a macro photograph and indicate which component you are referring to. What exactly is the description, and are all the pins on the PCB laminate in use?

Thank you very much for your reply.
The component is already cleaned with isopropyl alcohol, but it is scratched, probably from a previous repair attempt.
You can see it in the attached photo.

Have a nice day.
Stavros

The motherboard looks as though it’s been exposed to water, used in high-humidity conditions, or perhaps it’s from a shop display?
I’d probably be more inclined to buy a second-hand (new) motherboard.

They’re not too expensive (e.g. on eBay)
– don’t be put off by the EAX description... (bare board without components)
only EBT… or / white sticker

? EBT67238603 (PCB: EAX69830902) LG 65UQ75006LF
* must consist solely of numbers (67238603), without ‘EBT’