Fujitsu MHF2043AT Support Question
Fujitsu MHF2043AT Support Question
Find answers below for this question about Fujitsu MHF2043AT - Mobile 4.32 GB Hard Drive.Need a Fujitsu MHF2043AT manual? We have 1 online manual for this item!
Question posted by yasirch on April 28th, 2010
Driver For Mhf2043at
drive is detected in one computer but is shown as unknown USB devise in th eother PC, when used as mobile HDD with USB connection
Current Answers
Related Fujitsu MHF2043AT Manual Pages
Manual/User Guide - Page 6
... of the MHE Series and MHF Series. Terminology This section explains the special terminology used in this manual. Abbreviation This section gives the meanings of the definitions used in controller that the reader has a basic knowledge of hard disk drives and their features. CHAPTER 4 Theory of Device Operation This chapter describes the operation theory...
Manual/User Guide - Page 12
Manual Organization
MHE2064AT, MHE2043AT MHF2043AT, MHF2021AT
DISK DRIVE PRODUCT MANUAL
(C141-E057)
• Device Overview • Device Configuration • Installation Conditions • Theory of Device Operation • Interface • Operations
MHE2064AT, MHE2054AT MHF2043AT, MHF2032AT
MHF2021AT
DISK DRIVE MAINTENANCE MANUAL
(C141-F031)
• Maintenance and Diagnosis • ...
Manual/User Guide - Page 22
... with built-in this chapter, and specifications and power requirement are described. These disk drives use the AT-bus hard disk interface protocol and are compact and reliable. CHAPTER 1 Device Overview
1.1
Features
1.2
Device Specifications
1.3
Power Requirements
1.4
Environmental Specifications
1.5
Acoustic Noise
1.6
Shock and Vibration
1.7
Reliability
1.8
Error ...
Manual/User Guide - Page 23
...its height is 9.5 mm (0.374 inch).
(2) Large capacity
The disk drive can be used over a wide temperature range (5°C to 55°C).
(3) Low noise and vibration ...Series and MHF Series have a formatted capacity of 6.49 GB (MHE2064AT), 4.32 GB (MHE2043AT), 4.32 GB (MHF2043AT), 2.16 GB (MHF2021AT) respectively.
(3) High-speed Transfer rate
The disk drives (the MHE Series and MHF Series) have 1 disk...
Manual/User Guide - Page 25
...) EPR4ML 14,200 TPI 237.8 Kbpi 4,200 rpm ± 1% 7.14 ms
4.32 GB 4
1.5 ms (typ.) Read: 13 ms (typ.)
23 ms (typ.)
Typ.: 5 sec Typ.: 5 sec ATA-4 (Max. Table 1.1 Specifications (MHE2064AT/MHE2043AT)
Format Capacity (*1) Number of Heads Number of the disk drives (MHE2064AT/MHE2043AT). Device Overview
1.2 Device Specifications
1.2.1 Specifications summary Table 1.1 shows the...
Manual/User Guide - Page 26
... × Depth) Weight
MHF2043AT
MHF2021AT
4.32 GB 4
8,647 512 (16/17) EPR4ML 14,200 TPI 237.8 Kbpi 4,200 rpm ± 1% 7.14 ms
2.16 GB 2
1.5 ms (typ.) Read: 13 ms (typ.)
23 ms (typ.)
Typ.: 5 sec Typ.: 5 sec ATA-4 (Max.
Table 1.2 Specifications (MHF2043AT/MHF2021AT)
Format Capacity (*1) Number of Heads Number of the disk drives (MHF2043AT/MHF2021AT). 1.2 Device Specifications...
Manual/User Guide - Page 27
... MHF Series. Table 1.4 Model names and product numbers
Model Name
MHE2064AT MHE2043AT MHF2043AT MHF2021AT
Capacity (user area) 6.49 GB 4.32 GB 4.32 GB 2.16 GB
Mounting screw
M3, depth 3 M3, depth 3 M3, depth 3 M3, depth 3
Order No. Table 1.3 Specifications (MHE2064AT/2043AT/MHF2043AT/2021AT)
Model MHE2064AT MHE2043AT MHF2043AT MHF2021AT
Formatted Capacity 6,495.06 MB 4,327.46 MB 4,327.46 MB...
Manual/User Guide - Page 34
C141-E057-01EN
2-1 CHAPTER 2 Device Configuration
2.1
Device Configuration
2.2
System Configuration
This chapter describes the internal configurations of the hard disk drives and the configuration of the systems in which they operate.
Manual/User Guide - Page 35
... 2.2 illustrates the configuration of the disks and heads of disks used varies with the model, as described below.
The inner diameter is...the contact start /stop (CSS) type. Device Configuration
2.1 Device Configuration
Figure 2.1 shows the disk drive. MHE2064AT: 3 disks MHE2043AT: 2 disks
MHF2043AT: 2 disks MHF2021AT: 1 disks
The heads are written. The head touches the disk surface while ...
Manual/User Guide - Page 36
... improves data reliability by preventing errors caused by a direct drive Hall-less DC motor.
(4) Actuator
The actuator uses a revolving voice coil motor (VCM) structure which consumes ... Configuration
Head 5 4
3 2
1 0
MHE2064AT
Head 3 2
1 0
MHE2043AT
Head 3 2
1 0
MHF2043AT
Head 1 0
MHF2021AT
Figure 2.2 Configuration of disk media heads
(3) Spindle motor The disks are rotated by external ...
Manual/User Guide - Page 38
... does not exceed the ATA-4 standard, and the cable length between the HA and the disk drive may be contacted with the spindle motor. No need to the ATA-4 interface. Thus, that the... crosstalk of the signal lines (AT bus) between the HA and the disk drive should be made it is an abbreviation of address decoder, driver, and receiver. If the over-power worked, the cover could be as short...
Manual/User Guide - Page 40
C141-E057-01EN
3-1 CHAPTER 3 Installation Conditions
3.1
Dimensions
3.2
Mounting
3.3
Cable Connections
3.4
Jumper Settings
This chapter gives the external dimensions, installation conditions, surface temperature conditions, cable connections, and switch settings of the hard disk drives.
Manual/User Guide - Page 55
...diameter of 65 mm and an inner diameter of the disk drive. The MHE2064AT have three disks and MHE2043AT have two disks and MHF2043AT have two disks and MHF2021AT have one PCA. The head contacts...
4-2
C141-E057-02EN MHE2064AT has 6 read/write heads and MHE2043AT has 4 read/write heads and MHF2043AT has 4 read/write heads and MHF2021AT has 2 read /write head, and air filter.
Servo data ...
Manual/User Guide - Page 56
...changes a lot, filtered air is controlled with detecting a PHASE signal generated by the direct drive sensor-less DC spindle motor, which has a ...drive cycles air continuously through the circulation filter through an enclosed loop air cycle system operated by the read by a blower on the rotating disk. 4.2 Subassemblies
Head 5 4
3 2
1 0
MHE2064AT
Head 3 2
1 0
MHE2043AT
Head 3 2
1 0
MHF2043AT...
Manual/User Guide - Page 57
...drive circuit configuration.
(1) Read/write circuit The read/write circuit consists of a motor at the MPU and controls the motor speed comparing target speed.
(4) Controller circuit Major functions are controlled by 2 closed-loop servo using...PreAMP) and read demodulation circuit using the servo information recorded on the media surface.
(3) Spindle motor driver circuit The circuit measures the...
Manual/User Guide - Page 63
... inserted while the 0DD/EVEN bit is written onto the media.
(1) 16/17 GCR
The disk drive converts data using the 16/17 (0, 12, 8) group coded recording (GCR) algorithm. This code follows a format...000001
: 010000
: 100000
Compensation -7 -6
-1 ±0 +1
+16
+32
4-10
C141-E057-01EN The NRZ write data is converted from the hard disk controller (HDC) with the NRZ data format, and sent to the ...
Manual/User Guide - Page 70
... according to the differentation (abberration).
(6) Driver circuit
The driver circuit is in hold circuit in Figure... SERVO B, SERVO C and SERVO D burst signals shown in the servo burst capture circuit at the power amplifier...controls the sensor-less spindle motor. This circuit detects number of revolution of the POSA, POSB, ...drive current value (digital value) calculated by the DSP unit into voltage ...
Manual/User Guide - Page 73
... executed by the detected position sense data. The MPU then feeds the VCM drive current by Fujitsu. When the head arrives at the center of a track, the DSP drives the VCM by... feeding micro current. These are three modes for each sampling time, the VCM drive current is used as the spindle motor driver (called SVC hereafter). For each sampling timing during head movement to W-phase) ...
Manual/User Guide - Page 109
... 5.4 Information to be read by IDENTIFY DEVICE command (4 of 7)
*1 Word 0: General configuration
Bit 15: ATA device = 0, ATAPI device = 1
Bit 14-8: Undefined
Bit 7: Removable disk drive = 1
Bit 6: Fixed drive = 1
Bit 5-1: Undefined
Bit 0: Reserved
*2 Word 1, 3, 6, 60-61
Word 01 Word 03 Word 06 Word 60-01
MHE2064AT X'3470' X'0F' X'3F'
X'80F7F0'
*3 Word 49: Capabilities...
Manual/User Guide - Page 209
...command. This shortens the access time. If the received command is completed. Even if a hard reset or soft reset is received or the write cache function is disabled by the host system... command), the drive starts data transfer and receives data of sectors requested by a command is written onto the disk medium.
6-22
C141-E057-01EN Operations 3) The cache data for detecting a target sector...
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