Sony KV-2970T AA-2B Component (YPBPR) Mod

[rokatrom]

Hello, everyone! I am completely new to CRT Modding, and the most challenging electronics project I've tackled so far was building an arcade joystick .
I would like to mod my Sony Triniton KV-2970T, but I haven't found any model in Sunthar's super sector that has a jungle chip similar to mine.

This is the jungle chip in question: a CXA1871S :

Spoiler

I managed to find Pins 45 (R-Y IN) and 46 (B-Y IN) quite easily using the source, but I could only identify luma on Pin 10 (Y IN) by referring to the datasheet.This has raised some concerns for me.
Do you have any tips or schematics for me to follow? I've come across information suggesting that the component mod is often easier.

Why component? It's more practical for me, considering I currently own a PS2, Wii, and an Xbox 360, all equipped with component cables. Additionally, it's challenging for me to find SCART cables in Brazil.

Here is the beast (using composite, though):

Spoiler

The sound system of this unit is fantastic. I was about to sell it without knowing about the existence of RGB/YPBPR modding. I would never forgive myself.
I currently own a Philips too, with native component input:

Spoiler

This as me trying to use CRTEMUDRIVER

Here are some sources I managed to find:
KZ-2970T Manual and diagram

Yes, I am aware of the risks, both to myself and my CRT TV. I will be careful.