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(No.YF100)1-9
2.4 Handling Microdrives
Microdrives are used in GZ-MC100, GZ-MC200 and GZ-MC500. Although the appearance is different, a Microdrive is exactly the
same as a hard disc that is used in a PC. Therefore, unlike handling conventional tapes, caution must be paid in handling Microdrives.
The handling of Microdrives is explained in this section.
2.4.1 Removable Hard Disk
2.4.2 The structure of Microdrives
The detailed inside structure of Microdrives is not disclosed as it is treated as trade secrets. However, it is essential to have knowledge
of the structure of Microdrives in order to carry out service properly. Some information about Microdrives is given here.
A Microdrive is mainly consisted of the following parts.
• A magnetic recording disk that is coated with magnetic ma-
terial. (Disk)
• A reading/ writing head. (Head)
• A motor that turns the disk.
• A circuit board that is loaded with electrical circuit which con-
trols the motor, the head positioning, and input/ output of the
signal.
1 head type Microdrives use one side of the disk, and 2 head type
Microdrives use both sides of the disk with heads on each side
of the disk.The disk and the head do not contact and there is cer-
tain space kept between them. The head reads the pre recorded
servo information to control the head itself. When the head is not
in access to the disk, it is kept in a shelter to avoid damaging the
disk with shocks from outside.
The difference between a 2GB Microdrive and a 4GB Microdrive
is only whether it has one head or two heads and there is no
difference in performance, as shown in the specification list. A
2.5 inch hard disk that is used in a note PC is shown as a
reference. As a 2.5 inch hard disk is bigger than a Microdrive, it
has more disks and heads resulting in more capacity. 6GB type
Microdrive has been lately released. To compare the existing
4GB Microdrive with the newly released 4GB and 6GB
Microdrives, most of the specifications are the same. However,
obviously the data transfer speed and the areal density have
been improved. On the contrary, it seems impossible to increase
the disks for a Microdrive because of size restriction. High
capacity will be achieved by improving the areal density, transfer
speed and rotation speed of the future products.
Do the slide and take out a small hard disk to the case.
Do not take it out setting up
a small hard disk from the case.
< good example > < bad example >