Lenovo ThinkCentre M70a, ThinkCentre M90a Hardware Maintenance Manual [en, ar, bg, cs, da, de, el, es, fi, fr, he, hr, hu, id, it, ja, ko, nb, nl, pl, pt, ro, ru, sh, sk, sl, sv, th, tr, uk, zc, zh]

M70a and M90a Hardware Maintenance Manual

Read this first

Before using this documentation and the product it supports, ensure that you read and understand the following:

• Chapter 1 “Important safety information” on page 1

• Safety and Warranty Guide

• Setup Guide

Third Edition (January 2021)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925.

Contents

About this manual . . . . . . . . . . . . iii

Chapter 1. Important safety

information. . . . . . . . . . . . . . . . 1

General safety . . . . . . . . . . . . . . . . 1

Electrical safety . . . . . . . . . . . . . . . . 2

Safety inspection guide. . . . . . . . . . . . . 3

Handling electrostatic discharge-sensitive

devices . . . . . . . . . . . . . . . . . . . 4

Grounding requirements . . . . . . . . . . . . 4

Safety notices (multi-lingual translations) . . . . . . 4

Chapter 2. Important service

information. . . . . . . . . . . . . . . 27

Strategy for replacing FRUs . . . . . . . . . . 27

Strategy for replacing a hard disk drive or a

solid-state drive . . . . . . . . . . . . . 27

Important notice for replacing a system

board . . . . . . . . . . . . . . . . . 27

How to use error codes . . . . . . . . . . 28

Strategy for replacing FRUs for CTO, special-bid,

and standard models. . . . . . . . . . . . . 28

Product definition . . . . . . . . . . . . 28

FRU identification . . . . . . . . . . . . 28

Chapter 3. Product overview . . . . . 29

Front . . . . . . . . . . . . . . . . . . . 29

Rear . . . . . . . . . . . . . . . . . . . 31

Chapter 4. Service checkout and

symptom-to-FRU index . . . . . . . . 33

Service checkout . . . . . . . . . . . . . . 33

Problem determination tips . . . . . . . . 33

Symptom-to-FRU index . . . . . . . . . . . 34

Hard disk drive boot error . . . . . . . . . 34

Power supply problems . . . . . . . . . . 35

Beep symptoms . . . . . . . . . . . . . 35

POST error codes . . . . . . . . . . . . 35

Miscellaneous error conditions . . . . . . . 36

Undetermined problems . . . . . . . . . 38

Chapter 5. Troubleshooting,

diagnostics, and recovery . . . . . . . 41

Basic procedure for resolving computer

problems . . . . . . . . . . . . . . . . . 41

Troubleshooting . . . . . . . . . . . . . . 41

Startup problems . . . . . . . . . . . . 42

Screen problems . . . . . . . . . . . . 43

Audio problems . . . . . . . . . . . . . 44

Network problems . . . . . . . . . . . . 44

Performance problems . . . . . . . . . . 47

Storage drive problems . . . . . . . . . . 48

CD or DVD problems . . . . . . . . . . . 48

Serial connector problems. . . . . . . . . 49

USB device problems . . . . . . . . . . 49

Software problems. . . . . . . . . . . . 50

Diagnostics . . . . . . . . . . . . . . . . 50

Lenovo diagnostic tools. . . . . . . . . . 50

Recovery . . . . . . . . . . . . . . . . . 50

Restore system files and settings to an earlier

point . . . . . . . . . . . . . . . . . 50

Restore your files from a backup . . . . . . 50

Reset your computer . . . . . . . . . . . 50

Use advanced options . . . . . . . . . . 51

Windows automatic recovery. . . . . . . . 51

Create and use a recovery USB device . . . . 51

Update the device driver . . . . . . . . . 52

Chapter 6. Hardware removal and

installation . . . . . . . . . . . . . . . 53

Handling static-sensitive devices . . . . . . . . 53

Service tool kit . . . . . . . . . . . . . . . 53

Major FRUs and CRUs . . . . . . . . . . . . 54

System board . . . . . . . . . . . . . . . 59

Removing and installing hardware . . . . . . . 60

External options . . . . . . . . . . . . . 61

Computer stand . . . . . . . . . . . . . 61

Rear cover . . . . . . . . . . . . . . . 65

Optical drive . . . . . . . . . . . . . . 66

Optical drive holder . . . . . . . . . . . 69

System board shield . . . . . . . . . . . 71

VESA mount bracket cover . . . . . . . . 74

VESA mount bracket . . . . . . . . . . . 76

Storage drive and storage drive bracket . . . 78

System fan . . . . . . . . . . . . . . . 83

Heat sink . . . . . . . . . . . . . . . 85

Bump cover . . . . . . . . . . . . . . 88

M.2 solid-state drive . . . . . . . . . . . 90

Microprocessor . . . . . . . . . . . . . 94

Serial connector module . . . . . . . . . 100

Cable cover . . . . . . . . . . . . . . 102

Memory module . . . . . . . . . . . . . 104

Wi-Fi card . . . . . . . . . . . . . . . 107

Coin-cell battery. . . . . . . . . . . . . 110

Cover presence switch (intrusion switch) . . . 113

E-Privacy button board (M90a) . . . . . . . 115

Card reader . . . . . . . . . . . . . . 116

System board. . . . . . . . . . . . . . 119

Internal speakers . . . . . . . . . . . . 122

I/O brackets (M90a) . . . . . . . . . . . 124

Integrated camera and microphone

module . . . . . . . . . . . . . . . . 127

Main frame . . . . . . . . . . . . . . . 130

Front decoration cover . . . . . . . . . . 133

Wi-Fi antennas . . . . . . . . . . . . . 136

LCD bracket and LCD panel . . . . . . . . 139

Appendix A. Notices and

trademarks. . . . . . . . . . . . . . . 143

ii M70a and M90a Hardware Maintenance Manual

About this manual

This manual provides service and reference information for ThinkCentre® computers listed on the front cover.

Illustrations in this manual might look different from your product.

Use this manual along with the advanced diagnostic tests to troubleshoot problems.

Important: This manual is intended only for trained service technicians who are familiar with ThinkCentre computers. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkCentre computer, be sure to read and understand Chapter 1 “Important safety information” on page 1.

iv M70a and M90a Hardware Maintenance Manual

Chapter 1. Important safety information

General safety

Follow these rules to ensure general safety:

• Observe good housekeeping in the area of the machines during and after maintenance.

• When lifting any heavy object:

1. Ensure you can stand safely without slipping.

2. Distribute the weight of the object equally between your feet.

3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back.

Attention: Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are too heavy for you.

• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.

• Before you start the machine, ensure that other service representatives and the customer's personnel are not in a hazardous position.

• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.

• Keep your tool case away from walk areas so that other people will not trip over it.

• Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.

• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately 8 centimeters (3 inches) from the end.

• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Remember: Metal objects are good electrical conductors.

• Wear safety glasses when you are: hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.

• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

• Reinstall all covers correctly before returning the machine to the customer.

CAUTION:

Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek medical care immediately.

CAUTION:

Avoid contact with hot components inside the computer. During operation, some components become hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power, and wait approximately 10 minutes for the components to cool.

Electrical safety

CAUTION: Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the computer covers, unless instructed otherwise in the installation and configuration procedures.

Observe the following rules when working on electrical equipment.

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.

• Disconnect all power before: – Performing a mechanical inspection

– Working near power supplies – Removing or installing Field Replaceable Units (FRUs)

• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in the off position.

• If you need to work on a machine that has exposed electrical circuits, observe the following precautions: – Ensure that another person, familiar with the power-off controls, is near you.

Remember: Another person must be there to switch off the power, if necessary.

– Use only one hand when working with powered-on electrical equipment; keep the other hand in your

pocket or behind your back. Remember: There must be a complete circuit to cause electrical shock. By observing the above rule, you may prevent a current from passing through your body.

– When using a tester, set the controls correctly and use the approved probe leads and accessories for

that tester.

– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as

metal floor strips and machine frames.

Observe the special safety precautions when you work with very high voltages; these instructions are in the safety sections of maintenance information. Use extreme care when measuring high voltages.

• Regularly inspect and maintain your electrical hand tools for safe operational condition.

• Do not use worn or broken tools and testers.

• Never assume that power has been disconnected from a circuit. First, check that it has been powered-off.

• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds.

• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.

M70a and M90a Hardware Maintenance Manual

• Do not service the following parts with the power on when they are removed from their normal operating places in a machine:

– Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.)

• If an electrical accident occurs: – Use caution; do not become a victim yourself.

– Switch off power. – Send another person to get medical aid.

Safety inspection guide

The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these products. Each machine, as it was designed and built, had required safety items installed to protect users and service personnel from injury. This guide addresses only those items. However, good judgment should be used to identify potential safety hazards due to attachment of features or options not covered by this inspection guide.

If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.

Consider these conditions and the safety hazards they present:

• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock).

• Explosive hazards, such as a damaged CRT face or bulging capacitor

• Mechanical hazards, such as loose or missing hardware

The guide consists of a series of steps presented in a checklist. Begin the checks with the power off, and the power cord disconnected.

Checklist:

1. Check exterior covers for damage (loose, broken, or sharp edges).

2. Power-off the computer. Disconnect the power cord.

3. Check the power cord for: a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground

continuity for 0.1 ohm or less between the external ground pin and frame ground. b. The power cord should be the appropriate type as specified in the parts listings. c. Insulation must not be frayed or worn.

4. Remove the cover.

5. Check for any obvious alterations. Use good judgment as to the safety of any alterations.

6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

7. Check for worn, frayed, or pinched cables.

Chapter 1. Important safety information 3

8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

Handling electrostatic discharge-sensitive devices

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.

Notes:

1. Use product-specific ESD procedures when they exceed the requirements noted here.

2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts:

• Keep the parts in protective packages until they are inserted into the product.

• Avoid contact with other people while handling the part.

• Wear a grounded wrist strap against your skin to eliminate static on your body.

• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.

• Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.

• Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement.

Note: The use of a grounding system is desirable but not required to protect against ESD damage. – Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.

– Use an ESD common ground or reference point when working on a double-insulated or battery-

operated system. You can use coax or connector-outside shells on these systems.

– Use the round ground-prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

Safety notices (multi-lingual translations)

The caution and danger safety notices in this section are provided in the following languages:

• English

• Arabic

• Brazilian/Portuguese

• Chinese (simplified)

• Chinese (traditional)

• French

• German

• Hebrew

M70a and M90a Hardware Maintenance Manual

• Italian

• Korean

• Spanish

DANGER

Electrical current from power, telephone and communication cables is hazardous.

To avoid a shock hazard:

• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration

of this product during an electrical storm.

• Connect all power cords to a properly wired and grounded electrical outlet.

• Connect to properly wired outlets any equipment that will be attached to this product.

• When possible, use one hand only to connect or disconnect signal cables.

• Never turn on any equipment when there is evidence of fire, water, or structural damage.

• Disconnect the attached power cords, telecommunications systems, networks, and modems

before you open the device covers, unless instructed otherwise in the installation and configuration procedures.

• Connect and disconnect cables as described in the following tables when installing, moving, or

opening covers on this product or attached devices.

To Connect To Disconnect

1. Turn everything OFF.

2. First, attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlet.

5. Turn device ON.

1. Turn everything OFF.

2. First, remove power cords from outlet.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

CAUTION: When replacing the lithium battery, use only Part Number 45C1566 or an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Do not:

• Throw or immerse into water

• Heat to more than 100°C (212°F)

• Repair or disassemble

Dispose of the battery as required by local ordinances or regulations.

Chapter 1. Important safety information 5

CAUTION:

When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or transmitters) are installed, note the following:

• Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

• Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.

DANGER

Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following: Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

6 M70a and M90a Hardware Maintenance Manual

Chapter 1. Important safety information 7

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

8 M70a and M90a Hardware Maintenance Manual

PERIGO

A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa.

Para evitar risco de choque elétrico:

• Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios.

• Conecte todos os cabos de alimentação a tomadas elétricas corretamente instaladas e aterradas.

• Todo equipamento que for conectado a este produto deve ser conectado a tomadas corretamente instaladas.

• Quando possível, utilize apenas uma das mãos para conectar ou desconectar cabos de sinal.

• Nunca ligue nenhum equipamento quando houver evidência de fogo, água ou danos estruturais.

• Antes de abrir tampas de dispositivos, desconecte cabos de alimentação, sistemas de telecomunicação, redes e modems conectados, a menos que especificado de maneira diferente nos procedimentos de instalação e configuração.

• Conecte e desconecte os cabos conforme descrito na tabela apresentada a seguir ao instalar, mover ou abrir tampas deste produto ou de dispositivos conectados.

Para Conectar: Para Desconectar:

1. DESLIGUE Tudo.

2. Primeiramente, conecte todos os cabos aos dispositivos.

3. Conecte os cabos de sinal aos conectores.

4. Conecte os cabos de alimentação às tomadas.

5. LIGUE os dispositivos.

1. DESLIGUE Tudo.

2. Primeiramente, remova os cabos de alimentação das tomadas.

3. Remova os cabos de sinal dos conectores.

4. Remova todos os cabos dos dispositivos.

CUIDADO:

Ao substituir a bateria de lítio, utilize apenas uma bateria com Número de Peça 45C1566 ou um tipo de bateria equivalente recomendado pelo Se o seu sistema possui um módulo com uma bateria de lítio, substitua-o apenas por um módulo do mesmo tipo e do mesmo fabricante. A bateria contém lítio e pode explodir se não for utilizada, manuseada ou descartada de maneira correta.

Não:

• Jogue ou coloque na água

• Aqueça a mais de 100°C (212°F)

• Conserte nem desmonte

Descarte a bateria conforme requerido pelas leis ou regulamentos locais.

PRECAUCIÓN:

Chapter 1. Important safety information 9

Quando produtos a laser (como unidades de CD-ROMs, unidades de DVD-ROM, dispositivos de fibra ótica

ou transmissores) estiverem instalados, observe o seguinte:

• Não remova as tampas. A remoção das tampas de um produto a laser pode resultar em exposição prejudicial à radiação de laser. Não existem peças que podem ser consertadas no interior do dispositivo.

• A utilização de controles ou ajustes ou a execução de procedimentos diferentes dos especificados aqui pode resultar em exposição prejudicial à radiação.

PERIGO

Alguns produtos a laser contêm diodo de laser integrado da Classe 3A ou da Classe 3B. Observe o seguinte:

Radiação a laser quando aberto. Não olhe diretamente para o feixe a olho nu ou com instrumentos ópticos e evite exposição direta ao feixe.

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

CUIDADO:

Utilize procedimentos de segurança para levantar equipamentos.

CUIDADO:

O botão de controle de alimentação do dispositivo e o botão para ligar/desligar da fonte de alimentação não desligam a corrente elétrica fornecida ao dispositivo. O dispositivo também pode ter mais de um cabo de alimentação. Para remover toda a corrente elétrica do dispositivo, assegure que todos os cabos de alimentação estejam desconectados da fonte de alimentação.

10 M70a and M90a Hardware Maintenance Manual

Chapter 1. Important safety information 11

12 M70a and M90a Hardware Maintenance Manual

Chapter 1. Important safety information 13

DANGER

Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenter un danger.

Pour éviter tout risque de choc électrique :

• Ne manipulez aucun câble et n'effectuez aucune opération d'installation, d'entretien ou de reconfiguration de ce produit au cours d'un orage.

• Branchez tous les cordons d'alimentation sur un socle de prise de courant correctement câblé et mis à la terre.

• Branchez sur des socles de prise de courant correctement câblés tout équipement connecté à ce produit.

• Lorsque cela est possible, n'utilisez qu'une seule main pour connecter ou déconnecter les câbles d'interface.

• Ne mettez jamais un équipement sous tension en cas d'incendie ou d'inondation, ou en présence de dommages matériels.

• Avant de retirer les carters de l'unité, mettez celle-ci hors tension et déconnectez ses cordons d'alimentation, ainsi que les câbles qui la relient aux réseaux, aux systèmes de télécommunication et aux modems (sauf instruction contraire mentionnée dans les procédures d'installation et de configuration).

• Lorsque vous installez, que vous déplacez, ou que vous manipulez le présent produit ou des périphériques qui lui sont raccordés, reportez-vous aux instructions ci-dessous pour connecter et déconnecter les différents cordons.

M70a and M90a Hardware Maintenance Manual

Connexion Déconnexion

1. Mettez les unités HORS TENSION.

2. Commencez par brancher tous les cordons sur les unités.

3. Branchez les câbles d'interface sur des connecteurs.

4. Branchez les cordons d'alimentation sur des prises.

5. Mettez les unités SOUS TENSION.

1. Mettez les unités HORS TENSION.

2. Débranchez les cordons d'alimentation des prises.

3. Débranchez les câbles d'interface des connecteurs.

4. Débranchez tous les câbles des unités.

ATTENTION:

Remplacer la pile au lithium usagée par une pile de référence identique exclusivement, (référence 45C1566), ou suivre les instructions du fabricant qui en définit les équivalences. Si votre système est doté d'un module contenant une pile au lithium, vous devez le remplacer uniquement par un module identique, produit par le même fabricant. La pile contient du lithium et peut exploser en cas de mauvaise utilisation, de mauvaise manipulation ou de mise au rebut inappropriée.

Ne pas :

• la jeter à l'eau,

• l'exposer à des températures supérieures à 100°C,

• chercher à la réparer ou à la démonter.

Ne pas mettre la pile à la poubelle. Pour la mise au rebut, se reporter à la réglementation en vigueur.

ATTENTION:

Si des produits à laser (tels que des unités de CD-ROM, de DVD-ROM, des unités à fibres optiques, ou des émetteurs) sont installés, prenez connaissance des informations suivantes :

• Ne retirez pas le carter. En ouvrant l'unité de CD-ROM ou de DVD-ROM, vous vous exposez au

rayonnement dangereux du laser. Aucune pièce de l'unité n'est réparable.

• Pour éviter tout risque d'exposition au rayon laser, respectez les consignes de réglage et

d'utilisation des commandes, ainsi que les procédures décrites dans le présent manuel.

DANGER

Certains produits à laser contiennent une diode à laser intégrée de classe 3A ou 3B. Prenez connaissance des informations suivantes:

Rayonnement laser lorsque le carter est ouvert. Evitez toute expositiondirecte au rayon laser. Evitez de regarder fixement le faisceau ou del'observer à l'aide d'instruments optiques.

Chapter 1. Important safety information 15

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

ATTENTION:

Soulevez la machine avec précaution.

ATTENTION:

L'interrupteur de contrôle d'alimentation de l'unité et l'interrupteur dubloc d'alimentation ne coupent pas le courant électrique alimentantl'unité. En outre, le système peut être équipé de plusieurs cordonsd'alimentation. Pour mettre l'unité hors tension, vous devez déconnectertous les cordons de la source d'alimentation.

VORSICHT

An Netz-, Telefon- und Datenleitungen können gefährliche Spannungen anliegen.

Aus Sicherheitsgründen:

• Bei Gewitter an diesem Gerät keine Kabel anschließen oder lösen. Ferner keine Installations-,

Wartungs- oder Rekonfigurationsarbeiten durchführen.

• Gerät nur an eine Schutzkontaktsteckdose mit ordnungsgemäß geerdetem Schutzkontakt

anschließen.

• Alle angeschlossenen Geräte ebenfalls an Schutzkontaktsteckdosen mit ordnungsgemäß

geerdetem Schutzkontakt anschließen.

• Die Signalkabel nach Möglichkeit einhändig anschließen oder lösen, um einen Stromschlag durch

Berühren von Oberflächen mit unterschiedlichem elektrischem Potenzial zu vermeiden.

• Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen.

M70a and M90a Hardware Maintenance Manual

• Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken

und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind.

• Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der

angeschlossenen Einheiten die Kabel gemäß der folgenden Tabelle anschließen und abziehen.

Zum Anschließen der Kabel gehen Sie wie folgt vor Zum Abziehen der Kabel gehen Sie wie folgt vor

1. Schalten Sie alle Einheiten AUS.

2. Schließen Sie erst alle Kabel an die Einheiten an.

3. Schließen Sie die Signalkabel an die Buchsen an.

4. Schließen Sie die Netzkabel an die Steckdose an.

5. Schalten Sie die Einheit EIN.

1. Schalten Sie alle Einheiten AUS.

2. Ziehen Sie zuerst alle Netzkabel aus den Netzsteckdosen.

3. Ziehen Sie die Signalkabel aus den Buchsen.

4. Ziehen Sie alle Kabel von den Einheiten ab.

CAUTION:

Eine verbrauchte Lithiumbatterie nur durch eine Batterie mit der Teilenummer 45C1566 oder eine gleichwertige, vom Hersteller empfohlene Batterie ersetzen. Enthält das System ein Modul mit einer Lithiumbatterie, dieses nur durch ein Modul desselben Typs und von demselben Hersteller ersetzen. Die Batterie enthält Lithium und kann bei unsachgemäßer Verwendung, Handhabung oder Entsorgung explodieren.

Die Batterie nicht:

• mit Wasser in Berührung bringen.

• über 100 C erhitzen.

• reparieren oder zerlegen.

Die örtlichen Bestimmungen für die Entsorgung von Sondermüll beachten.

ACHTUNG:

Bei der Installation von Lasergeräten (wie CD-ROM-Laufwerken, DVD- aufwerken, Einheiten mit Lichtwellenleitertechnik oder Sendern) Folgendes beachten:

• Die Abdeckungen nicht entfernen. Durch Entfernen der Abdeckungen des Lasergeräts können

gefährliche Laserstrahlungen freigesetzt werden. Das Gerät enthält keine zu wartenden Teile.

• Werden Steuerelemente, Einstellungen oder Durchführungen von Prozeduren anders als hier

angegeben verwendet, kann gefährliche Laserstrahlung auftreten.

VORSICHT

Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B. Beachten Sie Folgendes:

Chapter 1. Important safety information 17

Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegel

verwenden. Strahlungsbereich meiden.

≥18 kg ≥32 kg ≥55 kg

ACHTUNG:

Arbeitsschutzrichtlinien beim Anheben der Maschine beachten.

ACHTUNG:

Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen. Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein. Um die Stromversorgung für die Einheit vollständig zu unterbrechen, müssen alle zum Gerät führenden Netzkabel vom Netz getrennt werden.

18 M70a and M90a Hardware Maintenance Manual

Chapter 1. Important safety information 19

PERICOLO

La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere pericolosa.

Per evitare il rischio di scosse elettriche:

M70a and M90a Hardware Maintenance Manual

• Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la

riconfigurazione del prodotto durante un temporale.

• Collegare tutti i fili elettrici a una presa di alimentazione correttamente cablata e dotata di messa a

terra.

• Collegare alle prese elettriche appropriate tutte le apparecchiature che verranno utilizzate per

questo prodotto.

• Se possibile, utilizzare solo una mano per collegare o scollegare i cavi di segnale.

• Non accendere assolutamente apparecchiature in presenza di incendi, perdite d'acqua o danno

strutturale.

• Scollegare i cavi di alimentazione, i sistemi di telecomunicazione, le reti e il modem prima di aprire i

coperchi del dispositivo, salvo istruzioni contrarie relative alle procedure di installazione e configurazione.

• Collegare e scollegare i cavi come descritto nella seguente tabella quando vengono effettuate

operazioni di installazione, spostamento o apertura dei coperchi di questo prodotto o delle unità collegate.

Per collegarsi Per scollegarsi

1. SPEGNERE le apparecchiature.

2. Innanzitutto, collegare tutti i cavi alle unità.

3. Collegare i cavi di segnale ai connettori.

4. Collegare i cavi di alimentazione alla presa.

5. Accendere l'unità.

1. SPEGNERE le apparecchiature.

2. Innanzitutto, rimuovere i cavi di alimentazione dalla presa.

3. Rimuovere i cavi di segnale dai connettori.

4. Rimuovere tutti i cavi dalle unità.

ATTENZIONE:

Quando si sostituisce la batteria al litio, utilizzare solo il Numero parte 45C1566 o un tipo di batteria equivalente consigliato dal produttore. Se sul sistema è presente un modulo che contiene una batteria al litio, sostituirlo solo con un tipo di modulo dello stesso tipo della stessa casa di produzione. La batteria contiene litio e può esplodere se usata, maneggiata o smaltita in modo non corretto.

Non:

• Gettare o immergere la batteria nell'acqua

• Riscaldarla ad una temperatura superiore ai 100 gradi C (212 gradi F)

• Smontarla, ricaricarla o tentare di ripararla

Le batterie usate vanno smaltite in accordo alla normativa in vigore (DPR 915/82 e successive disposizioni e disposizioni locali).

ATTENZIONE:

Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o trasmittenti), tener presente quanto segue:

Chapter 1. Important safety information 21

• Non rimuovere gli sportelli. L'apertura di un'unità laser può determinare l'esposizione a radiazioni

laser pericolose. All'interno dell'unità non vi sono parti su cui effettuare l'assistenza tecnica.

• L'utilizzo di controlli, regolazioni o l'esecuzione di procedure non descritti nel presente manuale

possono provocare l'esposizione a radiazioni pericolose.

PERICOLO

Alcune unità laser contengono un diodo laser di Classe 3A o Classe 3B. Tener presente quanto segue:

Aprendo l'unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici ed evitare l'esposizione al fascio.

≥18 kg ≥32 kg ≥55 kg

ATTENZIONE:

Prestare attenzione nel sollevare l'apparecchiatura.

ATTENZIONE:

Il pulsante di controllo dell'alimentazione presente sull'unità e l'interruttore dell'alimentatore non disattivano l'alimentazione corrente fornita all'unità. E' possibile che l'unità disponga di più cavi di alimentazione. Per disattivare l'alimentazione dall'unità, accertarsi che tutti i cavi di alimentazione siano scollegati dalla fonte di alimentazione.

22 M70a and M90a Hardware Maintenance Manual

Chapter 1. Important safety information 23

PELIGRO

La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede ser peligrosa.

Para evitar el riesgo de descarga eléctrica:

• No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o

reconfiguración de este producto durante una tormenta eléctrica.

• Conecte todos los cables de alimentación a tomas de corriente debidamente cableadas y

conectadas a tierra.

• Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente

debidamente cableadas.

• Siempre que sea posible, utilice una sola mano para conectar o desconectar los cables de señal.

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