Whenever a diskette from either a 800K Macintosh internal or external or
a UniDisk 3.5 disk drive does not fully eject, the user must push the
diskette back in and attempt to eject it electronically. For the
Macintosh, this can be done by holding down the <SHIFT> and <COMMAND>
(cloverleaf) keys and pressing '1' (for the internal drive) or '2' (for
the external drive). The EJECT command from the FILE menu can also be
used. For the UniDisk 3.5, the user can press the eject button on the
front of the UniDisk. For either disk drive, the user should attempt
this two or three times. As a last resort, a large paper clip can be
inserted into the pin hole located to the right of the slot where the
disk is inserted.
NOTE: Misalignment of the drive mechanism relative to the bezel, might
cause extra drag friction on the floppy that is being ejected and thus
cause the eject cycle to be interrupted. The June 1986 Service Mailing
will instruct dealers on how to perform this alignment procedure.
IMPORTANT: Once the diskette becomes "frozen" and does not fully
eject,the user must NOT force the diskette by pulling it out from the
drive. Doing so can cause possible damage to the disk drive mechanism.
If the user hastried to forcibly remove the diskette from the disk
drive, refer to "Removing Diskettes Which Will Not Eject" below.
In addition to the precautions discussed above, the user should be
aware of other factors which can affect the insertion and ejection of
a diskette.
- A diskette should be inserted by pressing the diskette gently into
the drive. Avoid grasping and pushing the diskette, as this may
cause the diskette to go in only part way and stop. If this
happens the user should attempt to eject the diskette as
described above.
- Diskettes which contain three or more labels may not slide easily
into and out of the diskette slot in the case. Should a third
label be required, either the other labels should be removed first
or the diskette should be discarded.
Technicians should also exercise care when removing or installing a
Macintosh Internal disk drive mechanism. If the diskette opening in the
disk drive mechanism is not properly centered, binding or friction may
cause ejection problems. Refer to the Macintosh Technical Procedures
for the proper installation proceures.
REMOVING DISKETTES WHICH WILL NOT EJECT
If a diskette becomes "jammed" in a customer's disk drive, the following
procedure should be used to remove it prior to returning the disk drive.
1. Remove the disk drive. Refer to the Technical Procedures to do
this.
2. If the disk drive is a Macintosh Internal drive, remove the RFI
shield from the mechanism.
3. Place the disk drive mechanism on a flat surface, with the Printed
Circuit Board facing down and the diskette opening facing you.
4. If the diskette is not already fully inserted into the disk drive,
push it in until it is properly seated.
5. Press the eject lever at the right side of the disk drive.
6. Turn the disk drive so that the left side is facing you.
7. Located the small arm with a cylindrical cog at its end. This arm
is located near the left-to-right center of the drive mechanism.
This cog will be caught in the half-moon depression of the
diskette case.
8. Insert a small screwdriver between the arm mentioned in step 7
and the diskette case. Gently move the arm away from the
diskette until the diskette pops forward slightly. Remove the
diskette from the disk drive.
9. Return the defective disk drive to Apple and follow the
instructions in Technical Procedures to replace the disk drive
with a new unit.
Compliments: Clayta Morand, Apple Service Product Support