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C156-E097-01EN 3 - 3
3.1.2 Temperature requirements and measuring method
Table 3.1 shows the temperature requirement at each measurement point shown in Figure 3.1.
Table 3.1 Temperature requirements at measurement points
Measurement point Maximum surface temperature
Cartridge inside 55°C (*)
IC (controller) surface 75 °C
IC (read amp.) surface 85 °C
Note: * 60°C for the optical disk cartridge manufactured by Fujitsu.
Following procedure is for temperature measurement of inside cartridge.
1) Make a hole for the thermo couple as shown in Figure 3.1.
2) Disassemble the cartridge disk.
3) Cut off a part of the partition wall for the optical media as shown in Figure 3.1. (Cut off
width: 5 to 10 mm)
4) Fix the tip of the thermo couple to the cut portion of partition wall with an adhesive agent.
5) Pass the thermo couple through the hole at the cartridge case and assemble the cartridge disk.
When there is a gap between the hole and the thermo couple, fill the gap with the adhesive
agent.
Note:
1. If the external environment temperature is higher than the specified value, the device
will automatically take an interval to respond to command, and then take protective
action to respond to the temperature increase.
2. If the ambient temperature becomes higher than the measured temperature, the device
automatically operates to protect itself from rising temperatures.
3.1.3 Air flow
It is recommended that this optical disk drive be installed in a fanless cabinet. However, if the
power supply is incorporated into the same cabinet, it is recommended that it satisfy the
“Temperature Conditions” in 3.1.2 and that the air flow rate being drawn in by the device) at the
cartridge loading slot be 0.02 m
3
/min, 0.3 m/s or lower. Furthermore, if there is a system fan in a
system where this drive is being installed, the same conditions must be met.