Maintenance Manual
Page 43
... Configuration (5) Air circulation system The disk enclosure (DE) is sealed to maintain the cleanliness of the rotating disk. The disk drive complies with ATA8-ACS, Serial ATA Revision 2.6 (Gen1i or Gen2i by integration into LSI. 2.2 System Configuration 2.2.1 SATA interface ... Controller circuit The controller circuit supports Serial-ATA interface, and it realized a high performance by each model). 2.2.2 Drive connection Operating System Application 1 Application 2 Driver Application 3 Serial ATA Adapter Disk Drive Disk Drive Figure 2.2 Drive system configuration C141-E293 2-3
... Configuration (5) Air circulation system The disk enclosure (DE) is sealed to maintain the cleanliness of the rotating disk. The disk drive complies with ATA8-ACS, Serial ATA Revision 2.6 (Gen1i or Gen2i by integration into LSI. 2.2 System Configuration 2.2.1 SATA interface ... Controller circuit The controller circuit supports Serial-ATA interface, and it realized a high performance by each model). 2.2.2 Drive connection Operating System Application 1 Application 2 Driver Application 3 Serial ATA Adapter Disk Drive Disk Drive Figure 2.2 Drive system configuration C141-E293 2-3
Maintenance Manual
Page 52
Do not hit HDD each other. General notes Wrist strap Use the Wrist strap. Installation (1) Please use the driver of the screw strictly. M3 0.49N • m (5 kgf • cm). - Installation Conditions - Do not drop. ESD mat Shock absorbing mat Place the shock absorbing mat ...on the operation table, and place ESD mat on it. 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-E293 Do not place HDD vertically to avoid...
Do not hit HDD each other. General notes Wrist strap Use the Wrist strap. Installation (1) Please use the driver of the screw strictly. M3 0.49N • m (5 kgf • cm). - Installation Conditions - Do not drop. ESD mat Shock absorbing mat Place the shock absorbing mat ...on the operation table, and place ESD mat on it. 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-E293 Do not place HDD vertically to avoid...
Maintenance Manual
Page 59
... on the servo information on the rotating disk. 4.3 Circuit Configuration Figure 4.1 shows the power supply configuration of the disk drive, and Figure 4.2 shows the disk drive circuit configuration. (1) Read/write circuit The read channel (RDC) which is an analog signal converted to digital for processing ...continuously through the circulation filter through an enclosed loop air cycle system operated by a blower on the media surface. (3) Spindle motor driver circuit The circuit measures the interval of a PHASE signal generated by a MPU and then reconverted to an analog signal for control...
... on the servo information on the rotating disk. 4.3 Circuit Configuration Figure 4.1 shows the power supply configuration of the disk drive, and Figure 4.2 shows the disk drive circuit configuration. (1) Read/write circuit The read channel (RDC) which is an analog signal converted to digital for processing ...continuously through the circulation filter through an enclosed loop air cycle system operated by a blower on the media surface. (3) Spindle motor driver circuit The circuit measures the interval of a PHASE signal generated by a MPU and then reconverted to an analog signal for control...
Maintenance Manual
Page 68
... burst capture MPU core 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 4.5 Block diagram of the servo control circuit. Theory of Device Operation 4.7 Servo Control The actuator motor and the spindle motor are submitted...
... burst capture MPU core 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 4.5 Block diagram of the servo control circuit. Theory of Device Operation 4.7 Servo Control The actuator motor and the spindle motor are submitted...
Maintenance Manual
Page 69
...the sensorless spindle motor. From the servo area on the data area surface, via the data head, the burst signals of the VCM drive current, and the value is sent to the power amplifier. (4) Power amplifier The power amplifier feeds currents, corresponding to the DAC ...Spindle motor control circuit The spindle motor control circuit controls the sensor-less spindle motor. The A/D converted data is on the data surface. A spindle driver IC with a built-in PLL circuit that is recognized by Fourier-demodulator in the servo burst capture circuit. 4.7 Servo Control (1) Microprocessor unit (MPU...
...the sensorless spindle motor. From the servo area on the data area surface, via the data head, the burst signals of the VCM drive current, and the value is sent to the power amplifier. (4) Power amplifier The power amplifier feeds currents, corresponding to the DAC ...Spindle motor control circuit The spindle motor control circuit controls the sensor-less spindle motor. The A/D converted data is on the data surface. A spindle driver IC with a built-in PLL circuit that is recognized by Fourier-demodulator in the servo burst capture circuit. 4.7 Servo Control (1) Microprocessor unit (MPU...
Maintenance Manual
Page 70
Theory of Device Operation (6) Driver circuit The driver circuit is located at the power amplifier by (1) to the spindle motor. (7) VCM current sense resistor (CSR) This resistor controls current at outer position of ...
Theory of Device Operation (6) Driver circuit The driver circuit is located at the power amplifier by (1) to the spindle motor. (7) VCM current sense resistor (CSR) This resistor controls current at outer position of ...
Maintenance Manual
Page 74
... is changed in the motor is controlled by sending several signals including the serial data from PHASE signal. The SVC starts a phase switching by Fujitsu. start mode. There are three modes for speed detection. It is turned on, the MPU sends the serial data to the SVC to the... free-wheeling condition, it moves to become the rotational speed of rotational magnetic field. When no phase signal is treated as the spindle motor driver (called SVC hereafter). Theory of the spindle motor based on the PHASE signal from the SVC. The firmware operates on the MPU manufactured by...
... is changed in the motor is controlled by sending several signals including the serial data from PHASE signal. The SVC starts a phase switching by Fujitsu. start mode. There are three modes for speed detection. It is turned on, the MPU sends the serial data to the SVC to the... free-wheeling condition, it moves to become the rotational speed of rotational magnetic field. When no phase signal is treated as the spindle motor driver (called SVC hereafter). Theory of the spindle motor based on the PHASE signal from the SVC. The firmware operates on the MPU manufactured by...
Maintenance Manual
Page 76
... the serial ATA cable. RX + / RX These signals are the inbound high speed differential signals that are connected to the high speed serial differential line driver 5-2 C141-E293 Interface 5.1 Physical Interface 5.1.1 Interface signals Figure 5.1 shows the interface signals. TX data TX+ RX data ComWake TX− RX+ Host analog front end...
... the serial ATA cable. RX + / RX These signals are the inbound high speed differential signals that are connected to the high speed serial differential line driver 5-2 C141-E293 Interface 5.1 Physical Interface 5.1.1 Interface signals Figure 5.1 shows the interface signals. TX data TX+ RX data ComWake TX− RX+ Host analog front end...
Maintenance Manual
Page 267
...signal. C141-E293 6-5 Software settings preservation may occur if there is maintained across hardware reset. In Serial ATA, COMRESET is equivalent to hard reset and a non-commanded COMRESET may be enabled or disabled using SET FEATURES with the INITIALIZE DEVICE PARAMETERS command. • Power ..., instead the device shall remain in the case of an asynchronous loss of signal some software settings may be lost without legacy driver knowledge, the software settings reservation ensures that are cleared for the particular type of reset it supports the particular feature/command the ...
...signal. C141-E293 6-5 Software settings preservation may occur if there is maintained across hardware reset. In Serial ATA, COMRESET is equivalent to hard reset and a non-commanded COMRESET may be enabled or disabled using SET FEATURES with the INITIALIZE DEVICE PARAMETERS command. • Power ..., instead the device shall remain in the case of an asynchronous loss of signal some software settings may be lost without legacy driver knowledge, the software settings reservation ensures that are cleared for the particular type of reset it supports the particular feature/command the ...
Maintenance Manual
Page 312
... reset, response to 6-7 software settings preservation 6-5 spare disk drive 7-15 specification 1-5 specification summary 1-5 spindle 4-2 spindle motor 2-2 spindle motor control 4-18 spindle motor control circuit 4-13 spindle motor driver circuit 4-3 stable rotation mode 4-18 staggered spin-up 5-8 ... 7-9 test span 5-69 theory of device operation 4-1 tool 7-8 total number of drive error 5-66 track following operation 4-17 troubleshooting at factory 7-14 troubleshooting disk drive replaced in field 7-12 troubleshooting procedure 7-12 U UNLOAD IMMEDIATE 5-47 unrecoverable read ...
... reset, response to 6-7 software settings preservation 6-5 spare disk drive 7-15 specification 1-5 specification summary 1-5 spindle 4-2 spindle motor 2-2 spindle motor control 4-18 spindle motor control circuit 4-13 spindle motor driver circuit 4-3 stable rotation mode 4-18 staggered spin-up 5-8 ... 7-9 test span 5-69 theory of device operation 4-1 tool 7-8 total number of drive error 5-66 track following operation 4-17 troubleshooting at factory 7-14 troubleshooting disk drive replaced in field 7-12 troubleshooting procedure 7-12 U UNLOAD IMMEDIATE 5-47 unrecoverable read ...