Would leaving the bare BD Rom Board inside my PS3 cause problems?

[scibot]

I have a problem with my PS3 60GB (Launch) Console...

The laser failed on the drive, so I replaced it, no issue except it lasted about a month (white clip laser is crap so im told)

The PS3 went in the cupboard and has stayed there for about 6 months. All this new hoohah with CFW made me get it out. I played around with the backup managers and obviously realised a lot of my backups wouldnt play discless.

I have purchased a laser from ebay (brown clip model) and have fitted it. Upon putting drive together, it no longer takes discs in/out. Even with the old laser in, or the laser before that (which read DVD/CD still) I get nothing. No movement at all. The blue light flashes to acknowledge a disc is being inserted or removed, the laser moves up (just the lens, not the deck) but no motors, and no laser beam.

Before I purchased a new laser, I left just the bare drive board in the ps3 (to allow updating) for a month or so. Could this of caused any problems?

I have tried :
Restore, New HDD, Formatting, Restoring Database, New ribbon. all to no avail.

Regards, and thanks in advance
Sci

[PiKeYtRoG]

Tricky. I`m thinking it could be a mechanical fault on the drive. You sure the mechanism is working as it should? All microswitches operating correctly? Not pulled a wire off a microswitch or a cable have you?

Or could the logic board have shorted on something inside if it was uninsulated and smoked?

My money is on dodgy mechanism ATM

[scibot]

I did fully insulate the boards lower circuits from shorting to earth with a piece of plastic... It could of moved around, but I doubt it. I keep taking the drive apart, puttin it back together its driving me crazy lol it definitely took discs in and out before I seperated drive and board. Does anyone know what voltages each motor should be receiving? and also what voltages the drive board should be receiving from the motherboard power output? (and pinout)

This would help me establish any loose connections / power faults.

If my driver IC had gone, what problems would that cause?

[scibot]

Holding down the eject button causes the blue light to flash, followed by a few seconds of what sounds like a seized motor (high pitched whine) I believe this is the loading motor, as if i disconnect the ribbon closest to the power input, the whining noise stops.

I will try source a motor to replace mine first, i am still a bit dubious, as the laser and spindle arent moving at all I assumed they would still at least attempt to move.

I wonder if anyone would be willing to remove the ribbon cable on the left side of the drive and power on their drive, observing its behaviour? If i remove mine, I get nothing.