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 MHV2080AS, MHV2060AS, MHV2040AS 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 manual System level and field troubleshooting, MHV2080AS, MHV2060AS, MHV2040AS Disk Drives
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MHV2060AS, MHV2080AS, MHV2040AS specifications

Fujitsu's MHV series of hard disk drives, specifically the MHV2040AS, MHV2080AS, and MHV2060AS models, are designed to deliver efficient performance and reliability for a range of applications, particularly in desktop computing and entry-level servers. Each of these drives adheres to the Serial ATA (SATA) interface, which ensures compatibility across a wide range of systems and is known for its cost-effectiveness and simplicity.

The MHV2040AS features a storage capacity of 40GB, making it suitable for basic computing tasks including document editing, web browsing, and media playback. The MHV2060AS steps it up with a 60GB capacity, allowing for increased data storage needs while still maintaining a high level of performance. The largest of the trio, the MHV2080AS, offers an impressive 80GB of space, positioning it well for users who require additional room for applications, games, and multimedia files.

All drives in this series are equipped with a rotational speed of 5400 RPM, which strikes a balance between speed and power consumption. This speed is adequate for everyday tasks and allows for quick boot times and file access, making them ideal for home and small office environments. Additionally, the drives feature an average latency of 5.5 milliseconds, contributing to their overall performance in retrieving data.

In terms of technology, the MHV series employs a fluid dynamic bearing (FDB) motor, which not only enhances reliability but also reduces noise levels during operation. The FDB technology helps improve the longevity of the drives by minimizing wear on mechanical components. This characteristic is particularly important for users seeking quieter drives, especially in work environments that require minimal disruption.

The drives also incorporate advanced power management features that significantly reduce power consumption, making them an environmentally friendly choice for users mindful of their carbon footprint. These drives are equipped with energy-saving modes that optimize their performance when not in full use, ensuring lower operational costs and longer lifespan.

Overall, the Fujitsu MHV2040AS, MHV2080AS, and MHV2060AS hard drives provide a solid solution for users looking for dependable storage with a range of capacities to fit their needs. Their performance, combined with noise reduction technologies and energy efficiency, makes them a notable choice for various computing environments, from single-user desktops to small business applications.
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