PS1/2 Need help fixing a fat PS2

[rufuszombot]

My aunt gave me a PS2 after i lost my stuff in a house fire, but it gor damaged when my kid knocked it off the table. It spins when I put a disc in it, but never does anything further with a DVD or PS2 game, it gives a disc read error with CDs and PS1 games. Aside from the cover of the disc tray breaking off I can't seem to find any other damage of the console inside or out.
Any clue on what my problem may be?

 

[Ryccardo]

A broken, worn out, or miscalibrated CD laser (or, however unlikely, its driving electronics) - DVDs working prove pretty much all other (many) parts of the optical drive subsystem are fine

(mostly as a novelty, try a standard audio CD if you want to exclude the antipiracy/region lock detector)