ps2 games

This PS3 boots PS1 and PS3 games, but when it identifies a PS2 game it goes to a black screen. I can synchronize the SixAxis in PS2 mode and I can access the submenu (image). Sometimes the screen flashes as if the PS2 logo is going to appear, but nothing happens. It doesn't matter if it's a PS2...

Hello I'd like some help and advice on a repair project I've been working on with this model PS3, I don't expect it's anything major though regardless I'd like to know exactly what is going on.I'm not asking for much and I don't feel up to modding the software, I simply would like to be able to...