PS2 not reading cds

[R3V]

with regards to the lens... is this the normal behavior?? does the spindle spins before the lens or it will only spin if the lens detect a cd... at least it would help to isolate which part to check before take apart again.

what I'm assuming is if the spindle only spins if the lens detects a Cd/DVD then at least, Im just going to check on the lens up to the flat cables (hopefully I did not broke any flat cables)

EDIT: Im going to try to play some music cd later when I get home... Im assuming if i can play CDs but not PS2 DVD then the DVD lens is history
is that correct assumption?

"One thing I've notice is the CD is just going to spin a little bit then stopped. On the laser, is it always on? I mean I tried to look at the lens (not directly just on the side). I've noticed that the lens will turn on (bright red) then turn off immediately after powering on."