NEC MC33M/B-K User Manual page 13

Chassis prong
4
Hold the bottom side of the optical drive unit with your hand, and carefully
pull up the drive bay with your other hand.
Pull up the drive bay until it is locked.
Drive bay
1
Cable
Closing the drive bay
Be careful not to pinch, strike, or cut your fingers when closing the drive bay.
Release the lock, carefully move down the drive bay, and push it from the
top and lock it.
Exercise care not to pinch the internal cables by the drive bay.
13