PS2 Slimline Problem...

I have a ps2 slim line... can you help me in fixing my console. My ps2 can't read discs; I guess my console is in wrong alignment of lens, Can you give me tips/Idea how to fix my ps2.Thanks!

make sure the disks are clean and that all the cables are in the back and it should work if it dosent take it back and get a refund