[ottoman]

Yeah, u can unplug the laser and flash a ps2 up and u still get audio and visual and the laser does a quarter turn.

That quarter turn thing is only providing the laser has power. If it not even doing that then I would suspect that there is no power to laser.

Further more if the ps2 has no audio or visual then ther is a lot of juice missing somewhere.

You get a st/by light and eject light so not totally dead.

Does the tray eject?

Does the fan run when switched on?

There r a lot of surface mount fuses on the motherboard and It sounds like one of these have gone.

Have a look on google for a diag of fuses, there r several about and check the continuity of these fuses.

Could also be a power supply board problem. e.g the supply is stable enough to run leds,fans,eject systems but not to run logic on motherboard and laser controller.

Hope this helps, let us know how it goes!!