Just for information sake, the gray wire is + and black is -...
On the board the - side measures 0 ohm with the exposed copper track at the border of the board so you will need an ohm meter to figure out the board side of the polarity.
Good luck with the repair.
Oh and no the engineers are not retarded as one can remove the optical pickup without need to dismantle the whole console. Removing the top cover, the dvd drive cover and opening the disc tray is enough to expose the screws that hold the pickup.
Perhaps you didn't see the screw that holds the metal pipe the laser pickup travels in ?
You see... These consoles were made with ease of repair in mind, but they were never intended to be serviced by the users ...
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)