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C156-E227-01EN 3-3
5) Pass the thermocouple through the hole in the cartridge and reassemble the
cartridge.
Using an adhesive agent, etc., fill any gap between the hole and the
thermocouple.
Note: The surface of the cartridge shown in Figure 3.1 has been cut away to
illustrate the elements inside the cartridge. Do not actually cut away the
surface.
If the external environment temperature rises above the specified value,
the drive will take protective action to deal with the temperature increase
by automatically placing an interval between commands before
responding to a command.
3.1.3 Temperature rise
Table 3.2 Temperatures at measuring points (Reference)
[Ambient temperature of the optical disk drive: 45°C] (°C)
Measurement point Random seek Criteria
Inside cartridge 54.0°C 55°C
IC (controller) surface
70.5°C 95°C
IC (read amp.) surface
72.4°C 85°C
Thermal sensor 54.2°C ––
Notes:
1. The above data was taken in a constant temperature chamber in which the
temperature around the optical disk drive was kept at 45°C. The data was not
taken with the drive installed in a box in which the drive is actually used.
2. Note that, when installed in a box, the ambient temperature around the drive
will differ depending on the air circulation conditions of the box, and the
temperature increase inside the cartridge will differ accordingly.
3.1.4 Air cleanliness
The air cleanliness in the device environment is expressed by the number of dust
particles per unit area. Fujitsu recommends using the optical disk drive in the
environment of class 5 million or less particle level. (Class 5 million: This means
there are 5 million dust particles of 0.5 ?m diameter or larger per cubic foot. This
is equivalent to 0.15 mg/m3.)
3.2 Mounting Requirements
3.2.1 Outer dimensions