Manual/User Guide
Page 37
... that could be as short as possible. If the over-power worked, the cover could be a great cause of the obstruction of the disk drive. At high speed data transfer (PIO mode 4 or DMA mode 2 U-DMA mode 5), occurrence of ringing or crosstalk of "AT attachment". The disk...the signal lines including the HA and cable does not exceed the ATA-5 standard, and the cable length between the HA and the disk drive may be made it the cause of address decoder, driver, and receiver. No need to the ATA-5 interface. 2.2 System Configuration IMPORTANT HA (host adaptor) consists of failure.
... that could be as short as possible. If the over-power worked, the cover could be a great cause of the obstruction of the disk drive. At high speed data transfer (PIO mode 4 or DMA mode 2 U-DMA mode 5), occurrence of ringing or crosstalk of "AT attachment". The disk...the signal lines including the HA and cable does not exceed the ATA-5 standard, and the cable length between the HA and the disk drive may be made it the cause of address decoder, driver, and receiver. No need to the ATA-5 interface. 2.2 System Configuration IMPORTANT HA (host adaptor) consists of failure.
Manual/User Guide
Page 46
...Do not place HDD vertically to avoid falling down. Figure 3.7 Handling cautions - Recommended equipments ESD Shock Contents Wrist strap ESD mat Low shock driver Model JX-1200-3056-8 SKY-8A (Color Seiden Mat) SS-6500 Maker SUMITOMO 3M Achilles HIOS 3-8 C141-E120-02EN Do not drop.... Use the Wrist strap. HDD is occasionally damaged by the impact of the driver. (2) Please observe the tightening torque of a low impact when you use an electric driver. Do not stack when carrying. Installation (1) Please use the driver of the screw strictly. M3 0.49 N·m (5 Kg·cm)...
...Do not place HDD vertically to avoid falling down. Figure 3.7 Handling cautions - Recommended equipments ESD Shock Contents Wrist strap ESD mat Low shock driver Model JX-1200-3056-8 SKY-8A (Color Seiden Mat) SS-6500 Maker SUMITOMO 3M Achilles HIOS 3-8 C141-E120-02EN Do not drop.... Use the Wrist strap. HDD is occasionally damaged by the impact of the driver. (2) Please observe the tightening torque of a low impact when you use an electric driver. Do not stack when carrying. Installation (1) Please use the driver of the screw strictly. M3 0.49 N·m (5 Kg·cm)...
Manual/User Guide
Page 56
... of Device Operation 4.3 Circuit Configuration Figure 4.2 shows the power supply configuration of the disk drive, and Figure 4.3 shows the disk drive circuit configuration. (1) Read/write circuit The read channel (RDC). The PreAMP consists of two... LSIs; read/write preamplifier (PreAMP) and read /write circuit consists of the write current switch circuit, that amplitudes the read demodulation circuit using the servo information recorded on the media surface. (3) Spindle motor driver...
... of Device Operation 4.3 Circuit Configuration Figure 4.2 shows the power supply configuration of the disk drive, and Figure 4.3 shows the disk drive circuit configuration. (1) Read/write circuit The read channel (RDC). The PreAMP consists of two... LSIs; read/write preamplifier (PreAMP) and read /write circuit consists of the write current switch circuit, that amplitudes the read demodulation circuit using the servo information recorded on the media surface. (3) Spindle motor driver...
Manual/User Guide
Page 67
... capture MPU DSP unit Position Sense SVC (3) DAC (4) Power Amp VCM current (7) CSR VCM CSR: Current Sense Resister VCM: Voice Coil Motor (5) Spindle motor control (6) Driver Spindle motor Figure 4.7 Block diagram of servo control circuit (1) Microprocessor unit (MPU) The MPU includes the DSP unit, and the MPU starts the spindle motor...
... capture MPU DSP unit Position Sense SVC (3) DAC (4) Power Amp VCM current (7) CSR VCM CSR: Current Sense Resister VCM: Voice Coil Motor (5) Spindle motor control (6) Driver Spindle motor Figure 4.7 Block diagram of servo control circuit (1) Microprocessor unit (MPU) The MPU includes the DSP unit, and the MPU starts the spindle motor...
Manual/User Guide
Page 69
...motor by the interrupt generated periodically, compares with A-B and C-D processed. (3) D/A converter (DAC) The D/A converter (DAC) converts the VCM drive current value (digital value) calculated by the DSP unit into analog values and transfers them to the power amplifier. (4) Power amplifier The power... The servo signals do A/D-convert by converting the VCM current into the motor coil according to the differentiation (aberration). (6) Driver circuit The driver circuit is a power amplitude circuit that time the AGC circuit is recognized by the MPU as position information with the target...
...motor by the interrupt generated periodically, compares with A-B and C-D processed. (3) D/A converter (DAC) The D/A converter (DAC) converts the VCM drive current value (digital value) calculated by the DSP unit into analog values and transfers them to the power amplifier. (4) Power amplifier The power... The servo signals do A/D-convert by converting the VCM current into the motor coil according to the differentiation (aberration). (6) Driver circuit The driver circuit is a power amplitude circuit that time the AGC circuit is recognized by the MPU as position information with the target...
Manual/User Guide
Page 74
...digitally executed by the firmware. 4.7.5 Spindle motor control Hall-less three-phase twelve-pole motor is used as the spindle motor driver (called SVC hereafter). For each sampling timing during head movement to the reference cylinder and seek operation under the spindle rotates in...MPU calculates the difference (speed error) between the target position and the position clarified by Fujitsu. start mode. b) When the charge pump capacitor is stopped at the center of a track, the DSP drives the VCM by setting the calculated result into the spindle motor. These are three modes...
...digitally executed by the firmware. 4.7.5 Spindle motor control Hall-less three-phase twelve-pole motor is used as the spindle motor driver (called SVC hereafter). For each sampling timing during head movement to the reference cylinder and seek operation under the spindle rotates in...MPU calculates the difference (speed error) between the target position and the position clarified by Fujitsu. start mode. b) When the charge pump capacitor is stopped at the center of a track, the DSP drives the VCM by setting the calculated result into the spindle motor. These are three modes...
Manual/User Guide
Page 191
...20 20 20 20 20 20 Interlock time with minimum (*1) TUI 0 0 0 0 0 0 Unlimited interlock time (*1) tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to release (from asserted or negated) tZAH 20 20 20 20 20 20 Minimum delay time required for output tZAD 0 0 0 0 0 0 Drivers... recipient shall wait to pause after negating DMARDY-) tIORDYZ 20 20 20 20 20 20 Maximum time before releasing IORDY tZIORDY 0 0 0 0 0 0 Minimum time before driving IORDY (*4) tACK 20 20 20 20 20 20 Setup and hold (tDH, tCH) times in burst ...
...20 20 20 20 20 20 Interlock time with minimum (*1) TUI 0 0 0 0 0 0 Unlimited interlock time (*1) tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to release (from asserted or negated) tZAH 20 20 20 20 20 20 Minimum delay time required for output tZAD 0 0 0 0 0 0 Drivers... recipient shall wait to pause after negating DMARDY-) tIORDYZ 20 20 20 20 20 20 Maximum time before releasing IORDY tZIORDY 0 0 0 0 0 0 Minimum time before driving IORDY (*4) tACK 20 20 20 20 20 20 Setup and hold (tDH, tCH) times in burst ...
Manual/User Guide
Page 225
... that can handle the standard parameters of the drive do not always correspond to protect these parameters. The DE is daisychained with the ATA standard. The physical specifications of these drivers. Commands are instructions to input data to the parameters defined by... different vendors. The DE includes the disks, built-in conformity with the second drive which , for drives The BIOS standard collectively refers to and ...
... that can handle the standard parameters of the drive do not always correspond to protect these parameters. The DE is daisychained with the ATA standard. The physical specifications of these drivers. Commands are instructions to input data to the parameters defined by... different vendors. The DE includes the disks, built-in conformity with the second drive which , for drives The BIOS standard collectively refers to and ...