Lenovo 10A4 Owner's manual

ThinkCentre M83 and M93/p
Hardware Maintenance Manual
Machine Types: 10A0, 10A1, 10A2, 10A3, 10A , 10A5, 10A6, 10A7,
10A8, 10A9, 10AA, 10AB, 10BE, 10AG,10AH, 10AJ, 10AK,
10AL,10AM, 10AN, 10DF, 10DG, 10DH, 10DJ, 10E8, 10E9, 10EA, and
10EB

Note: Before using this information and the product it supports, be sure to read and understand Chapter 1
“Safety information” on page 1 and Appendix A “Notices” on page 279.
Sixth Edition (December 2018)
© Copyright Lenovo 201 , 2018.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-
35F-05925.

Contents
About this manual . . . . . . . . . . . . v
Chapter 1. Safety information. . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 3
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . .
Safety notices (multi-lingual translations) . . . . . .
Chapter 2. General information . . . . 27
Specifications . . . . . . . . . . . . . . . 27
For machine types: 10A0, 10A1, 10A6, 10A7,
10AG, 10AK, 10AL, and 10BE . . . . . . . 27
For machine types: 10A2, 10A3, 10A8, 10A9,
10AH, 10AJ, 10AM, and 10AN . . . . . . . 28
For machine types: 10A , 10A5, 10AA, 10AB,
10DF, 10DG, 10DH, 10DJ, 10E8, 10E9, 10EA,
and 10EB . . . . . . . . . . . . . . . 29
Lenovo programs . . . . . . . . . . . . . . 29
Accessing a program on your computer . . . 29
An introduction to Lenovo programs . . . . . 30
Lenovo Support Web site . . . . . . . . . . . 32
Chapter . General checkout . . . . .
Problem determination tips . . . . . . . . . . 33
Chapter 4. Troubleshooting and
diagnostics. . . . . . . . . . . . . . . 5
Basic troubleshooting . . . . . . . . . . . . 35
Accessing Control Panel on the Windows 8 or
Windows 8.1 operating system . . . . . . . . . 36
Troubleshooting procedure . . . . . . . . . . 36
Troubleshooting . . . . . . . . . . . . . . 37
Audio problems . . . . . . . . . . . . . 38
CD problems . . . . . . . . . . . . . . 39
DVD problems . . . . . . . . . . . . . 0
Intermittent problems. . . . . . . . . . . 1
Hard disk drive problems . . . . . . . . . 1
Keyboard, mouse, or pointing device
problems . . . . . . . . . . . . . . . 2
Monitor problems . . . . . . . . . . . . 3
Networking problems. . . . . . . . . . . 5
Option problems . . . . . . . . . . . . 7
Performance and lockup problems . . . . . 8
Printer problems. . . . . . . . . . . . . 9
Serial port problems . . . . . . . . . . . 50
Software problems. . . . . . . . . . . . 50
USB problems . . . . . . . . . . . . . 51
Diagnostics . . . . . . . . . . . . . . . . 52
Lenovo Solution Center . . . . . . . . . . 52
UEFI diagnostic program . . . . . . . . . 52
Chapter 5. Using the Setup Utility
program . . . . . . . . . . . . . . . . 55
Starting the Setup Utility program. . . . . . . . 55
Viewing and changing settings . . . . . . . . . 55
Using passwords . . . . . . . . . . . . . . 55
Password considerations . . . . . . . . . 56
Power-on password . . . . . . . . . . . 56
Administrator password . . . . . . . . . . 56
Setting, changing, and deleting a password . . 56
Erasing lost or forgotten passwords (clearing
CMOS) . . . . . . . . . . . . . . . . 56
Enabling or disabling a device . . . . . . . . . 57
Selecting a startup device . . . . . . . . . . . 57
Selecting a temporary startup device. . . . . 57
Selecting or changing the startup device
sequence . . . . . . . . . . . . . . . 58
Enabling ErP LPS compliance mode. . . . . . . 58
ICE performance mode . . . . . . . . . . . . 59
ICE thermal alert . . . . . . . . . . . . . . 59
Changing the BIOS settings before installing a new
operating system . . . . . . . . . . . . . . 60
Exiting the Setup Utility program . . . . . . . . 60
Chapter 6. Symptom-to-FRU
Index . . . . . . . . . . . . . . . . . . 61
Hard disk drive boot error . . . . . . . . . . . 61
Power supply problems. . . . . . . . . . . . 61
Beep symptoms . . . . . . . . . . . . . . 62
POST error codes . . . . . . . . . . . . . . 62
Miscellaneous error conditions . . . . . . . . . 63
Undetermined problems . . . . . . . . . . . 65
Chapter 7. Locations . . . . . . . . . 67
For machine types: 10A0, 10A1, 10A6, 10A7,
10AG, 10AK, 10AL, and 10BE . . . . . . . . . 67
Locating connectors, controls, and indicators
on the front of your computer. . . . . . . . 67
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . . 67
Locating major FRUs and CRUs . . . . . . 70
Looking up FRU information . . . . . . . . 72
Locating parts on the system board . . . . . 73
Locating internal drives . . . . . . . . . . 75
© Copyright Lenovo 2013, 2018 i

For machine types: 10A2, 10A3, 10A8, 10A9,
10AH, 10AJ, 10AM, and 10AN . . . . . . . . . 76
Locating connectors, controls, and indicators
on the front of your computer. . . . . . . . 76
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . . 76
Locating major FRUs and CRUs . . . . . . 79
Looking up FRU information . . . . . . . . 81
Locating parts on the system board . . . . . 81
Locating internal drives . . . . . . . . . . 8
For machine types: 10A , 10A5, 10AA, 10AB,
10DF, 10DG, 10DH, 10DJ, 10E8, 10E9, 10EA, and
10EB . . . . . . . . . . . . . . . . . . . 85
Locating connectors, controls, and indicators
on the front of your computer. . . . . . . . 85
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . . 86
Locating major FRUs and CRUs . . . . . . 87
Looking up FRU information . . . . . . . . 89
Locating parts on the system board . . . . . 89
Chapter 8. Replacing FRUs (machine
types: 10A0, 10A1, 10A6, 10A7, 10AG,
10AK, 10AL, and 10BE). . . . . . . . . 91
Removing the computer cover . . . . . . . . . 91
Removing and reinstalling the front bezel . . . . . 92
Installing or replacing a PCI card . . . . . . . . 93
Installing or replacing a memory module . . . . . 96
Replacing the optical drive . . . . . . . . . . 98
Installing or replacing the card reader . . . . . . 100
Installing the card reader . . . . . . . . . 100
Replacing the card reader . . . . . . . . . 103
Installing or replacing the front USB assembly . . . 10
Installing the front USB assembly . . . . . . 10
Replacing the front USB assembly . . . . . 107
Replacing the battery . . . . . . . . . . . . 108
Replacing the power supply assembly . . . . . . 109
Replacing the heat sink and fan assembly . . . . 111
Replacing the microprocessor . . . . . . . . . 113
Replacing the system board . . . . . . . . . . 115
Installing or replacing the mSATA solid-state
drive . . . . . . . . . . . . . . . . . . . 118
Installing the mSATA solid-state drive . . . . 118
Replacing the mSATA solid-state drive . . . . 119
Replacing the primary hard disk drive . . . . . . 122
Replacing the secondary hard disk drive . . . . . 12
Installing the solid-state drive . . . . . . . . . 126
Replacing the front fan assembly . . . . . . . . 128
Replacing the rear fan assembly . . . . . . . . 129
Replacing the front audio and USB assembly . . . 131
Replacing the internal speaker . . . . . . . . . 13
Replacing the thermal sensor . . . . . . . . . 135
Replacing the cover presence switch . . . . . . 137
Replacing the Wi-Fi units . . . . . . . . . . . 138
Removing the Wi-Fi adapter card . . . . . . 138
Removing the Wi-Fi card module . . . . . . 1 1
Installing the Wi-Fi units . . . . . . . . . . 1 3
Installing or removing the rear Wi-Fi antenna . . . 1 5
Installing the rear Wi-Fi antenna. . . . . . . 1 5
Removing the rear Wi-Fi antenna . . . . . . 1 6
Installing or removing the front Wi-Fi antenna . . . 1 7
Installing the front Wi-Fi antenna . . . . . . 1 7
Removing the front Wi-Fi antenna . . . . . . 1 9
Replacing the keyboard or mouse. . . . . . . . 1 9
Completing the parts replacement . . . . . . . 150
Obtaining device drivers. . . . . . . . . . 151
Chapter 9. Replacing FRUs (machine
types: 10A2, 10A , 10A8, 10A9, 10AH,
10AJ, 10AM, and 10AN) . . . . . . . . 15
Installing external options . . . . . . . . . . . 153
Removing the computer cover . . . . . . . . . 153
Removing and reinstalling the front bezel . . . . . 15
Accessing the system board components and
drives. . . . . . . . . . . . . . . . . . . 155
Installing or replacing a PCI card . . . . . . . . 156
Installing or replacing a memory module . . . . . 158
Replacing the optical drive . . . . . . . . . . 160
Installing or replacing the card reader
assembly . . . . . . . . . . . . . . . . . 162
Installing the card reader assembly . . . . . 162
Replacing the card reader assembly . . . . . 16
Installing or replacing the front USB assembly . . . 166
Installing the front USB assembly . . . . . . 167
Replacing the front USB assembly . . . . . 169
Replacing the battery . . . . . . . . . . . . 171
Installing or replacing the mSATA solid-state
drive . . . . . . . . . . . . . . . . . . . 172
Installing the mSATA solid-state drive . . . . 172
Replacing the mSATA solid-state drive . . . . 17
Replacing the power supply assembly . . . . . . 177
Replacing the power switch unit . . . . . . . . 181
Replacing the heat sink and fan assembly . . . . 183
Replacing the microprocessor . . . . . . . . . 186
Replacing the system board . . . . . . . . . . 188
Replacing the cover presence switch . . . . . . 192
Replacing the primary hard disk drive . . . . . . 19
Installing or replacing the secondary hard disk
drive . . . . . . . . . . . . . . . . . . . 196
Installing the secondary hard disk drive. . . . 196
Replacing the secondary hard disk drive . . . 200
Installing the solid-state drive . . . . . . . . . 202
Replacing the front fan assembly . . . . . . . . 20
ii ThinkCentre M83 and M93/p Hardware Maintenance Manual

Replacing the front audio and USB assembly . . . 206
Replacing the internal speaker . . . . . . . . . 208
Replacing the thermal sensor . . . . . . . . . 210
Replacing the Wi-Fi units . . . . . . . . . . . 212
Removing the Wi-Fi adapter card . . . . . . 212
Removing the Wi-Fi card module . . . . . . 21
Installing the Wi-Fi units . . . . . . . . . . 215
Installing or removing the rear Wi-Fi antenna . . . 217
Installing the rear Wi-Fi antenna. . . . . . . 217
Removing the rear Wi-Fi antenna . . . . . . 219
Installing or removing the front Wi-Fi antenna . . . 220
Installing the front Wi-Fi antenna . . . . . . 220
Removing the rear Wi-Fi antenna . . . . . . 222
Replacing the keyboard or mouse. . . . . . . . 223
Completing the parts replacement . . . . . . . 22
Obtaining device drivers. . . . . . . . . . 225
Chapter 10. Replacing FRUs
(machine types: 10A4, 10A5, 10AA, 10AB,
10DF, 10DG, 10DH, 10DJ, 10E8, 10E9,
10EA, and 10EB) . . . . . . . . . . . . 227
Removing the computer cover . . . . . . . . . 227
Installing external options . . . . . . . . . . . 228
Installing or removing the ac power adapter . . . . 228
Installing or removing the vertical stand . . . . . 230
Installing or removing the VESA mount bracket . . 232
Installing or removing the ac power adapter
bracket . . . . . . . . . . . . . . . . . . 23
Replacing the optical drive . . . . . . . . . . 235
Installing or removing the hard disk drive
assembly . . . . . . . . . . . . . . . . . 2 1
Replacing the secondary hard disk drive . . . . . 2 3
Installing or removing the I/O box . . . . . . . . 2 8
Installing or replacing a memory module . . . . . 250
Replacing the battery . . . . . . . . . . . . 251
Replacing the power switch board . . . . . . . 252
Replacing the Wi-Fi card module . . . . . . . . 25
Installing or removing the front Wi-Fi antenna . . . 255
Installing or removing the rear Wi-Fi antenna . . . 257
Replacing the internal speaker . . . . . . . . . 258
Replacing the cover presence switch . . . . . . 261
Replacing the system fan . . . . . . . . . . . 263
Replacing the thermal module . . . . . . . . . 26
Replacing the microprocessor . . . . . . . . . 266
Replacing the system board . . . . . . . . . . 268
Replacing the keyboard or mouse. . . . . . . . 271
Completing the parts replacement . . . . . . . 272
Obtaining device drivers. . . . . . . . . . 27
Chapter 11. Additional service
information. . . . . . . . . . . . . . . 275
Security features . . . . . . . . . . . . . . 275
Hardware controlled passwords . . . . . . 275
Operating system password . . . . . . . . 275
Vital product data . . . . . . . . . . . . 275
BIOS levels . . . . . . . . . . . . . . . . 275
Flash update procedures . . . . . . . . . . . 275
Updating the BIOS . . . . . . . . . . . . 276
Recovering from a POST/BIOS update
failure . . . . . . . . . . . . . . . . . 276
Power management . . . . . . . . . . . . . 276
Advanced configuration and power interface
(ACPI) BIOS . . . . . . . . . . . . . . 276
Automatic Power-on features . . . . . . . 277
Appendix A. Notices. . . . . . . . . . 279
Index . . . . . . . . . . . . . . . . . . 281
© Copyright Lenovo 2013, 2018 iii

iv ThinkCentre M83 and M93/p Hardware Maintenance Manual

About this manual
This manual provides service and reference information for ThinkCentre® computers listed on the front cover.
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 “Safety information” on
page 1.
© Copyright Lenovo 2013, 2018 v

vi ThinkCentre M83 and M93/p Hardware Maintenance Manual

Chapter 1. Safety information
This chapter contains the safety information that you need to be familiar with before servicing a computer.
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.
. 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.
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
© Copyright Lenovo 2013, 2018 1

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.
• 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:
2ThinkCentre M83 and M93/p Hardware Maintenance Manual

– 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.
. 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.
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.
Chapter 1.Safety information

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
• Italian
• Korean
• Spanish
DANGER
4ThinkCentre M83 and M93/p Hardware Maintenance Manual

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.
. 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.
. 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.
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.
Chapter 1.Safety information 5

DANGER
Some laser products contain an embedded Class A or Class B 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 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs)
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.
1
2
6ThinkCentre M83 and M93/p Hardware Maintenance Manual

Chapter 1.Safety information 7

≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs)
1
2
8ThinkCentre M83 and M93/p 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.
. 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.
. 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.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 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs)
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.
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Chapter 1.Safety information 11

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