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10/27 XM-7002B Rev.1.0
3.5. Reliability
3.5.1. Error Rate
(1) Hard Read Error Rate (Byte Error Rate) ----- Allowing 10 Retries -----
Yellow-Book Mode 1/Mode 2 Form1 10
-15
Max
Yellow-Book Mode 2/Mode 2 Form2 10
-12
Max
(2) Seek Error Rate ---Allowing Retries---
10
-6
Max
3.5.2. MTBF 60,000 POH
Assumptions: Power On Hours 5,436 h/year
On/Off Cycles 312 cycles/year
Number of Access 600,000 accesses/year
Operating Duty Cycle 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