Fujitsu MHV2120AT manual Device damage, Data corruption

Page 8

Important Alert Items

Task

 

Alert message

Page

 

 

 

Maintenance

Device damage

 

 

1.

Before touching a PCA or the drive, wear a wrist strap

1-2

 

 

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.

 

 

7.

Do not apply excessive force to the cover under any

 

 

 

circumstances. Doing so may cause irreparable damage

 

 

 

to the cover.

 

 

Device damage

 

 

The DE is completely sealed. Do not open the DE in the

1-3

 

field.

 

 

Data corruption

 

 

When asking for repair, save all data stored in the disk drive

1-4

 

beforehand. Fujitsu Limited is not responsible for any loss

 

 

of data during service and repair.

 

 

Device damage

 

 

The disk enclosure (DE) must never to be opened in the

1-13

 

field. Opening the disk enclosure may cause irreparable

 

 

damage.

 

 

 

 

 

iv

C141-F072

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Contents Disk Drive Maintenance Manual MHV2120AT, MHV2100AT, MHV2080AT MHV2060AT, MHV2040ATFor Safe Operation Handling of This ManualRevision History This page is intentionally left blank Conventions for Alert Messages PrefaceOverview of Manual Operating Environment Liability ExceptionStatic, Damage Important Alert ItemsImportant Alert Messages Device damage Data corruptionDamage or Device damage This page is intentionally left blank Disk Drive Maintenance Manual Manual OrganizationThis page is intentionally left blank Contents Illustrations TablesMaintenance and Diagnosis Maintenance Rules for maintenanceMaintenance requirements Data corruption Maintenance levels Disk drive revision number Disk drive revision number labelDisplay of disk drive revision number Test Self-diagnosticsTools and test equipment Test flowchart Status register contents Disposition for error register contentsOperation Confirmation Operation testTroubleshooting Procedure Diagnostic testTroubleshooting procedure Troubleshooting disk drive replaced in fieldSystem level and field troubleshooting MHV2040AT Disk Drives Product Manual for switch settingTroubleshooting at factory This page is intentionally left blank Removal and Replacement Procedure Model and parts numbers Spare PartsDisk Drive Removal Acronyms and Abbreviations CSSAcronyms and Abbreviations Index Index READER’S Comment Form This page is intentionally left blank MHV2120AT, MHV2100AT, MHV2080AT, MHV2060AT, MHV2040AT C141-F072-01ENThis page is intentionally left blank
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