Toshiba XM-7002B Product Specification - Page 14

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 ----- Allowing 10 Retries ----10-15 Max 10-12 Max (2) Seek Error Rate ---Allowing Retries--- 10-6 Max 3.5.2. MTBF Assumptions: Power On Hours On/Off Cycles Number of Access Operating Duty Cycle 60,000 POH 5,436 h/year 312 cycles/year 600,000 accesses/year 20 % of Power On Time (Reading/Seeking) 3.5.3. MTTR 0.5 h 3.5.4. Drive Life 15,000 h or 5 years(earlier one) 3.5.5. Mechanical Life (1) Drawer Load/Eject 10,000 times or more (2) Interface Connector Attach/Detach 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