Toshiba XM-7002B specifications 10/27, Configuration

3.5.Reliability

3.5.1.Error Rate

(1)Hard Read Error Rate (Byte Error Rate) Yellow-Book Mode 1/Mode 2 Form1 Yellow-Book Mode 2/Mode 2 Form2

(2)Seek Error Rate ---Allowing Retries---

3.5.2.MTBF

Assumptions: Power On Hours

On/Off Cycles

Number of Access

Operating Duty Cycle

3.5.3.MTTR

3.5.4.Drive Life

3.5.5.Mechanical Life

(1)Drawer Load/Eject

(2)Interface Connector Attach/Detach

----- Allowing 10 Retries -----

10-15Max

10-12Max

10-6Max

60,000 POH

5,436 h/year

312cycles/year 600,000 accesses/year

20% of Power On Time (Reading/Seeking)

0.5 h

15,000 h or 5 years(earlier one)

10,000 times or more

500 times or more

4. Configuration

See Figure 5 for details of the configurations.

4.1.Electrical Circuits

(1)Drawer Eject Switch

(2)Optical Pickup Servo Control Circuit

(3)Feed Motor Drive Circuit

(4)Laser Diode Control Circuit

(5)EFM Demodulator and CD-ROM Error Correction Circuit

(6)IDE/ATAPI Interface Control Circuit

(7)System Control Circuit

(8)Analog Audio output

4.2. Optical Pickup	Semiconductor Laser and 3-beam System
4.3. Spindle Motor	Brush- less DC Motor
4.4. Feed Motor	DC Motor with Non-contact Type Velocity
	sensor

10/27 XM-7002B Rev.1.0