UPGRADING REPAIRING PCs

5
Floppy, Removable,
Tape, and Flash
Memory Storage
Chapter 5
Floppy Drives
A 3 1/2-inch 1.44MB floppy drive, the most common type of
floppy drive in use today, isn’t very expensive to replace. However,
when it stops working, you might not need to replace it right away,
if you have the “inside story.” Figure 5.1 shows an exploded view
of a typical 3 1/2-inch 1.44MB floppy drive.
Top
1 2
5
Figure 5.1 A typical 3 1/2-inch floppy disk drive.
1. 34-pin data cable connector
2. 4-pin power connector
3. Head-actuator motor
4. Worm gear to drive actuator motor
5. Read-write head (one of two)
3
4
8
6
7
9
6. Write-protect sensor
Bottom
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7. Media sensor (720KB or 1.44MB)
8. Spindle (left) and drive motor (right)
9. Disk ejector button
10. Logic board