Topic: Problem to have video signal from PS2 AV port to HDMI

Hello

i have two ps2 and with one of these two the adapter worked, the adapter that i have used AV to HDMI is this one :
https://it.aliexpress.com/item/1005005736116454.html?spm=a2g0...

and on both ps2 slim models that i have i have set as video exit that:
https://i.imgur.com/kad0an9.jpg

Y Cb/Pb Cr/Pr

• on that ps2 model worked all fine with the HD adapter (and also with Scart): SCPH 70004
• on that ps2 model no signal with the HD adapter (work well with scart anyway) : SCPH 77004

1 )why on the 77004 don't work that HD adapter ?

2) with the SCPH 70004 i saw that when i still was with the scart cable and i have changed from VGA to Y Cb/Pb Cr/Pr the screen was changed in green ...after when i have connected the HD adapter worked fine.

3)while with the SCPH 77004 that don't work with the HD adapter i have noticed that when i'm using the scart and i change from VGA to Y Cb/Pb Cr/Pr don't change anything and still work fine, no green screen as on the other model

what can be the issue ?