Maintenance and Diagnosis

 

Table 1.3 System level and field troubleshooting

 

 

Check to be made

Recommended work

 

 

DC power voltage

Confirm that the DC power voltage is within ±5% of the standard value.

level

When measured at pins 41, 42 and 43 of the power supply connector, the

 

+5 VDC must be 4.75 to 5.25 VDC.

 

 

DC power ripple

Check that the maximum ripple at +5 VDC power is less than 100 mV

noise

peak to peak and 200 mV peak to peak respectively.

 

 

Power-interface

Confirm that the AT interface cable is properly connected at the disk

cable connection

drive, power supply section, and control unit.

 

 

Switch setting

Confirm that the switch on the interface connector at the disk drive

 

control PCA is set for normal operation with the host computer. Refer to

 

Section 3.4 of the MHV2100AH, MHV2080AH, MHV2060AH,

 

MHV2040AH Disk Drives Product Manual for switch setting.

 

 

System cable

Confirm that all cable connections throughout the system correctly

 

connected.

 

 

System diagnostic

To further isolate the failure, if it can be done, execute the system level

test

diagnostic routine described in the host computer manual.

 

 

Intermittent or

Check the AC voltage level at the power supply section and recheck the

indefinite error

DC voltage level at the disk drive power supply connector.

 

If the AC voltage level is abnormal, or if there is a lot of electrical noise,

 

notify the user.

 

If the DC voltage level is unstable, replace the power supply section.

 

If possible, replace the disk drive. If the fault remains, the disk drive is

 

not the case. For suggestions to isolate the failure further, refer to the

 

hardware and software manuals provided with the system.

 

 

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Fujitsu MHV2080AH manual System level and field troubleshooting, MHV2040AH Disk Drives Product Manual for switch setting
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MHV2040AH, MHV2080AH, MHV2060AH, MHV2100AH specifications

The Fujitsu MHV series of hard disk drives, specifically the MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH, are renowned for their reliability and performance in the mobile HDD segment. Designed primarily for use in laptops and other portable devices, these drives integrate cutting-edge technologies to meet the demands of today's data-intensive applications.

One of the hallmark features of the MHV series is its high data density, allowing for substantial storage capabilities in compact sizes. The MHV2060AH offers a storage capacity of 60 GB, while the MHV2080AH and MHV2100AH offer 80 GB and 100 GB respectively. The MHV2040AH provides a slightly more modest but still robust 40 GB of storage. This range of capacities ensures that users can select the model that best fits their storage needs.

The drives utilize the latest perpendicular magnetic recording (PMR) technology, which enhances recording efficiency and increases data storage densities. This technology significantly optimizes the use of disk surface area, providing better performance and more reliable data access. Additionally, the MHV series incorporates an advanced actuator system that ensures precision head positioning, enhancing data integrity and reducing error rates during read and write operations.

In terms of performance, the MHV series maintains a revolutions per minute (RPM) rating of 5400, which strikes a balance between speed and energy efficiency, making these drives suitable for low-power applications. The drives are also designed with a low acoustic level, generating minimal noise during operation—a crucial factor for mobile users who prefer quieter devices.

Furthermore, the Fujitsu MHV series features a robust shock resistance design, allowing them to withstand the rigors of mobile computing. This makes them suitable for use in portable environments subject to vibration and physical movement, thus ensuring data security and drive longevity.

Overall, the Fujitsu MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH represent a formidable selection of mobile hard disk drives filled with advanced technologies and features, making them well-suited for a wide range of applications in today's fast-paced digital world. With their combination of storage capacity, performance, and durability, these drives continue to serve as reliable solutions for users seeking efficient data storage in portable formats.
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