Fujitsu DISK DRIVES MHL2300AT User manual

C141-F043-01EN
MHL2300AT, MHM2200AT,
MHM2150AT, MHM2100AT
DISK DRIVES
MAINTENANCE MANUAL

C141-F043-01EN
FOR SAFE OPERATION
Handling of This Manual
This manual contains important information for using this product. Read thoroughly before using
the product. Use this product only after thoroughly reading and understanding especially the
section “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully.
FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering
damage to their property. Use the product according to this manual.
IMPORTANT NOTE TO USERS
READ THE ENTIRE MANUAL CAREFULLY BEFORE USING THIS PRODUCT.
INCORRECT USE OF THE PRODUCT MAY RESULT IN INJURY OR DAMAGE TO
USERS, BYSTANDERS OR PROPERTY.
While FUJITSU has sought to ensure the accuracy of all information in this manual, FUJITSU
assumes no liability to any party for any damage caused by any error or omission contained in this
manual, its updates or supplements, whether such errors or omissions result from negligence,
accident, or any other cause. In addition, FUJITSU assumes no liability with respect to the
application or use of any product or system in accordance with the descriptions or instructions
contained herein; including any liability for incidental or consequential damages arising therefrom.
FUJITSU DISCLAIMS ALL WARRANTIES REGARDING THE INFORMATION
CONTAINED HEREIN, WHETHER EXPRESSED, IMPLIED, OR STATUTORY.
FUJITSU reserves the right to make changes to any products described herein without further
notice and without obligation.
The contents of this manual may be revised without prior notice.
The contents of this manual shall not be disclosed in any way or reproduced in any media without
the express written permission of Fujitsu Limited.
All Rights Reserved, Copyright FUJITSU LIMITED 2000

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C141-F043-01EN
Revision History
(1/1)
Edition Date Revised section (*1)
(Added/Deleted/Altered) Details
01 2000-02-15 — —
*1 Section(s) with asterisk (*) refer to the previous edition when those were deleted.

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C141-F043-01EN i
Preface
This manual describes the MHL2300AT, MHM2200AT, MHM2150AT and MHM2100AT 2.5-inch hard disk
drives with a built-in controller that is compatible with the ATA interface.
This manual explains, in detail, how to maintain the disk drives.
This manual assumes that users have a basic knowledge of hard disk drives and their application in computer
systems.
This manual consists of the following two chapters:
Overview of Manual
CHAPTER 1 Maintenance and Diagnosis
This chapter explains MHL2300AT, MHM2200AT, MHM2150AT and
MHM2100AT maintenance requirements, operation verification, and
troubleshooting.
CHAPTER 2 Removal and Replacement Procedure
This chapter explains the procedure for removing and replacing the MHL2300AT,
MHM2200AT, MHM2150AT and MHM2100AT.
In this manual, disk drives may be referred to as drives, or devices.
IBM PC-AT is a registered trademark of IBM (International Business Machines
Corporation) of the United States of America.
Conventions for Alert Messages
This manual uses the following conventions to show the alert messages. An alert
message consists of an alert signal and alert statements. The alert signal consists of
an alert symbol and a signal word or just a signal word.
The following are the alert signals and their meanings:
This indicates a hazardous situation could result in
minor or moderate personal injury if the user does
not perform the procedure correctly. This alert
signal also indicates that damages to the product or
other property may occur if the user does not perform
the procedure correctly.
This indicates information that could help the user
use the product more efficiently.

Preface
ii C141-F043-01EN
In the text, the alert signal is centered, followed below by the indented message. A
wider line space precedes and follows the alert message to show where the alert
message begins and ends. The following is an example:
(Example)
Don’t install or remove a PCA or connect or disconnect a cable or
connector plug when the drive is powered. This may give you an
electric shock.
The main alert messages in the text are also listed in the “Important Alert Items.”
Operating Environment
This product is designed to be used in offices or computer rooms.
For details regarding the operating environment of use, refer to the
(Cnnn-Xnnn) and the
(Cnnn-Xnnn).
Attention
Please forward any comments you may have regarding this manual.
To make this manual easier for users to understand, opinions from readers are
needed. Please write your opinions or requests on the Comment at the back of this
manual and forward it to the address described in the sheet.
Liability Exception
“Disk drive defects” refers to defects that involve adjustment, repair, or
replacement.
Fujitsu is not liable for any other disk drive defects, such as those caused by user
misoperation or mishandling, inappropriate operating environments, defects in the
power supply or cable, problems of the host system, or other causes outside the
disk drive.

C141-F043-01EN iii
Important Alert Items
Important Alert Messages
The important alert messages in this manual are as follows:
A hazardous situation could result in minor or moderate personal
injury if the user does not perform the procedure correctly. Also,
damage to the predate or other property, may occur if the user does
not perform the procedure correctly.
Task Alert message Page
Maintenance 1. Don’t install or remove a PCA or connect or disconnect
a cable or connector plug when the drive is powered.
This may give you an electric shock.
2. Keep away from mechanical assemblies in the unit
during operation. This may cause injuries.
3. Avoid dangerous detergent when the disk drive is
cleaned.
1. Before touching a PCA or the drive, wear a wrist strap
and perform the human body grounding to discharge
static electricity from your body. This will prevent
irreparable damage to the PCA and the head of the drive.
2. Don’t install or remove a PCA or connect or disconnect
a cable or connector plug when the drive is powered.
This will prevent electrical damage to the disk drive.
3. Operating the disk drive with one or more PCA missing
will be unpredictable. Only power the drive with all
boards installed.
4. Avoid any detergent which may cause short circuits
when cleaning assemblies.
5. Keep all vents open opened and unblocked. Avoid other
conditions which may cause circuits to overheat.
6. A ribbon type cable has one line marked. Ensure that
this line is always connected to pin 1 of the cable
connector.
1-2

Important Alert Items
iv C141-F043-01EN
Task Alert message Page
Maintenance 7. Do not apply excessive force to the cover under any
circumstances. Doing so may cause irreparable damage
to the cover.
1-2
The DE is completely sealed. Do not open the DE in the
field. 1-3
When asking for repair, save all data stored in the disk drive
beforehand. Fujitsu Limited is not responsible for any loss
of data during service and repair.
1-4
The disk enclosure must never to be opened in the field.
Opening the disk enclosure may cause irreparable damage. 1-12
1. Perform any removal after the system power is
completely disconnected. The cable must not be
disconnected and the screws that attach the drive must
not be removed with the power ON.
2. Do not move the drive until it comes to a complete stop
(about 30 s after the power is turned OFF).
3. Perform the human body grounding to discharge any
static electricity from your body.(Be sure to wear a wrist
strap)
2-2

C141-F043-01EN v
Manual Organization
MHL2300AT, MHM2200AT,
MHM2150AT, MHM2100AT
DISK DRIVES
PRODUCT MANUAL
(C141-E104)
1. Device Overview
2. Device Configuration
3. Installation Conditions
4. Theory of Device Operation
5. Interface
6. Operations
MHL2300AT, MHM2200AT,
MHM2150AT, MHM2100AT
DISK DRIVES
MAINTENANCE MANUAL
(C141-F043)
<This manual>
1. Maintenance and Diagnosis
2. Removal and Replacement Procedure