Installation Requirements
3.1.4 Temperature rise under several conditions
Table 3.2 Temperature at each measuring point (Reference)
[Ambient atmospheric temperature of the optical disk drive: | 45°C] | (°C) |
| |||
| Measurement point | Ready |
| Random seek | Criteria | |
|
|
|
|
|
|
|
| Inside cartridge | 47°C |
|
| 54°C | 55°C |
|
|
|
|
|
|
|
| IC (controller) surface | 51°C |
|
| 68°C | 90°C |
|
|
|
|
|
|
|
| IC (read amp.) surface | 48°C |
|
| 90°C | 95°C |
|
|
|
|
|
|
|
| IC (power amp.) surface | 47°C |
|
| 78°C | 90°C |
|
|
|
|
|
|
|
| Thermal sensor | 47°C |
|
| 55°C | − |
|
|
|
|
|
|
|
Notes:
1.The above data are data estimated as they were measured where the temperature surrounding the equipment was kept at 45 °C, using that at 25 °C. They are not the same as the data obtained from measurements using the exclusive box in which the equipment is normally used.
2.When using the box, the ambient temperature around the equipment will differ depending on the air circulation conditions of the box, and the temperature rise inside the cartridge will differ because of this, so please exercise caution.
3.1.5 Air purity
Air purity in the device environment is expressed by the number of dust particles per unit area and must be class 5 millions (equivalent to 0.15 mg/m3) or less. (Class 5 millions: 5 millions dust particles of 0.5 um dia. or larger per cubic foot)
