1.3 Troubleshooting Procedure

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 and 42 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 disk drive control PCA is set for normal

 

 

 

operation with the host computer. Refer to Section 3.4 of the

 

 

 

MHS2060AT, MHS2040AT, MHS2030AT, MHS2020AT 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.

 

 

 

 

 

 

1-12

C141-F059-01EN

Page 25 Page 27
Page 26
Image 26
Fujitsu MHS2020AT, MHS2030AT, MHS2040AT, MHS2060AT manual System level and field troubleshooting
Page 25 Page 27

MHS2060AT, MHS2020AT, MHS2040AT, MHS2030AT specifications

Fujitsu is renowned for its contributions to the hard drive industry, and among its noteworthy offerings are the MHS2040AT, MHS2020AT, MHS2030AT, and MHS2060AT models. These hard disk drives (HDDs) are designed primarily for mobile computing applications and provide a balance of performance, reliability, and storage capacity.

The Fujitsu MHS2040AT is a 40GB hard drive that utilizes the IDE interface for connectivity. With an average seek time of 12 ms and a rotational speed of 4200 RPM, it delivers reasonable performance for everyday tasks. The drive integrates advanced technologies such as Shock Sensor technology that helps to protect the drive from physical shocks, ensuring the integrity of data even in portable devices. Furthermore, its low power consumption makes it an excellent candidate for laptops and mobile devices, allowing for longer battery life without compromising speed.

In contrast, the MHS2020AT offers a slightly lower storage capacity of 20GB but retains many of the same features as the MHS2040AT. This drive is ideal for users with less demanding storage requirements, while still providing efficient performance for standard mobile applications. The reliability features inherent in Fujitsu’s design philosophy, including a high tolerance to shock and vibration, are also present in this model.

The MHS2030AT presents a middle-ground option with a capacity of 30GB. Like its counterparts, it supports the IDE interface and is characterized by a rotational speed of 4200 RPM. The MHS2030AT is particularly suited for users who require a balance between cost and capacity without vastly sacrificing performance. Its design also emphasizes data integrity, offering features that mitigate the risk of data loss in mobile environments.

Finally, the MHS2060AT stands out with its enhanced storage capacity of 60GB. It shares similar technological attributes with the previous models, such as low power consumption and robust shock protection. This drive caters to users who require greater storage for multimedia applications and data-intensive tasks, while still being optimized for mobile computing.

In summary, the Fujitsu MHS2 series exemplifies reliability and performance in mobile storage solutions. Each model caters to different storage needs while maintaining essential features such as shock protection and energy efficiency, making them an excellent choice for laptop users and portable devices. Fujitsu’s commitment to engineering durable and efficient drives ensures that these models continue to be relevant in an ever-evolving technology landscape.
Top Page Image Contents