Lenovo IdeaCentre B325 Guide Parts list manual

Version 3.0 2011.06
Machine type: 10069/7760
10074/3076
Lenovo
IdeaCentre B3 Series
Hardware Replacement Guide
31500146

Hardware Replacement Guide
© Copyright Lenovo 2011. All rights reserved.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered
pursuant a General Services Administration “GSA” contract, use, reproduction, or
disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.
© 2011. Lenovo

Contents
Overview...................................................................................... 1
Chapter 1 Locations ................................................................. 5
Locating components and connectors...........................................5
Chapter 2 Replacing hardware................................................ 9
General information........................................................................9
Mounting the computer onto a wall..............................................10
Replacing a memory module .......................................................11
Replacing the optical drive ...........................................................13
Replacing the hard disk drive.......................................................16
Replacing the keyboard ...............................................................18
Replacing the mouse ...................................................................19
Replacing the power cord............................................................20
Chapter 3 Appendix ................................................................ 21

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Hardware Replacement Guide
Overview
This guide is intended to be used by customers who are replacing Customer
Replaceable Units (CRUs) as well as trained service personnel who are replacing
Field Replaceable Units (FRUs). In this guide, CRUs and FRUs will often be referred
to as parts.
Note: Trained service personnel should refer to the Hardware Maintenance
Manual (HMM) for parts ordering information.
This guide does not include procedures for all parts. It is expected that cables,
switches, and certain mechanical parts can be replaced by trained service
personnel without the need for step-by-step procedures.
Note: Use only parts provided by Lenovo®.
The description of the TV-Tuner card in this manual applies only to those computer
models that have the TV-Tuner card installed. It does not apply to those computer
models that do not have the TV-Tuner card installed.
This guide contains procedures for replacing the following parts:
• Memorymodules
• Harddiskdrive
• Opticaldrive
• Keyboard,Mouse(wired)
• Powercord
Safety information for replacing CRUs
Do not open your computer or attempt any repairs before reading the “Important
safety information” in the Safety and Warranty Guide that was included with your
computer. If you no longer have this copy of the Safety and Warranty Guide, you
can obtain one online from the Support Web site at
http://consumersupport.lenovo.com.

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Additional information resources
If you have Internet access, the most up-to-date information for your computer is
available from the World Wide Web.
You can find the following information:
• CRUremovalandinstallationinformation
• Publications
• Troubleshootinginformation
• Partsinformation
• Linkstootherusefulsourcesofinformation
To access this information, go to: http://consumersupport.lenovo.com
Tools required
To disassemble the computer, you need the following tools:
• Wristgroundingstrapandconductivematforpreventingelectrostatic
discharge
• Flatscrewdriver
• Phillipsscrewdriver
• Hexscrewdriver
• Plasticatscrewdriver
• Plastictweezers
Note: Thescrewsforthedifferentcomponentsvaryinsize.Duringthe
disassembly procedure, group the screws with their corresponding
components to avoid a mismatch when replacing the components.
Handling static-sensitive devices
Static electricity, although harmless to you, can seriously damage computer
components.
When you are replacing a part, do not open the static-protective package
containing the new part until the defective part has been removed from the
computer and you are ready to install the new part.
When you handle parts and other computer components, take these precautions
to avoid static-electricity damage:

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Hardware Replacement Guide
• Limityourmovement.Movementcancausestatic-electricitytobuilduparound
you.
• Alwayshandlepartsandothercomputercomponentscarefully.Handle
adapters, memory modules, system boards, and microprocessors by the
edges. Never touch any exposed circuitry.
• Preventothersfromtouchingthepartsandothercomputercomponents.
• Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontaining
the part to a metal expansion-slot cover or other unpainted metal surface on
the computer for at least two seconds. This reduces static electricity in the
package and your body.
• Whenpossible,removethenewpartfromthestatic-protectivepackaging,
and install it directly in the computer without setting the part down. When this
is not possible, place the static-protective package that the part came in on a
smooth, level surface and place the part on it.
• Donotplacethepartonthecomputercoverorothermetalsurface.

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Hardware Replacement Guide
Locations
Chapter
This chapter provides illustrations to help locate the various connectors, controls
and components of the computer.
Locating components and connectors
The following illustrations will help you to locate the various components and
connectors in your computer.
Font view
The following illustrations show the location of connectors on the front of the
computer.
Built-inmicrophone Camera
TV indicator Hard Disk Drive Indicator

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Bluetoothstatusindicator WIFI status indicator
Menu button Direction button
Direction button LCD On/Off
Powerbutton
Left and right view
The following illustrations show the location of connectors on the left and right side
of the computer.
Attention: Besurenottoblockanyairventsonthecomputer.Blockedair
vents may cause thermal problems.
Optical drive TV buttons (Selected models only)
Card reader USBport
Headphone port Microphone port
USBport

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Hardware Replacement Guide
TV buttons (Selected models only)
Channel Up Channel Down
Volume Up Volume Down
TV mode menu button Signal source choice button
TV power On/Off

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Rear view
The following illustration shows the location of connectors on the rear of the
computer.
Ethernet port TV tuner port (Selected models only)
USBports(5) Bluetoothresetbutton(Only
functional on models equipped with
aBluetoothmodule)
AV-IN ports (Selected models
only)
PS/2keyboardport
Powerconnector

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Hardware Replacement Guide
Attention:
Do not remove the computer cover or attempt any repairs before reading
the “Important safety information” in the Safety and Warranty Guide that was
included with your computer or in the Hardware Maintenance Manual (HMM)
for the computer. To obtain copies of the Safety and Warranty Guide or
HMM, go to the Support Web site at: http://consumersupport.lenovo.com
Note: Use only parts provided by Lenovo.
General information
Pre-disassembly instructions
Beforeproceedingwiththedisassemblyprocedure,makesurethatyoudothe
following:
1. Turn off the power to the system and all peripherals.
2. Unplug all power and signal cables from the computer.
3. Placethesystemonaat,stablesurface.
Replacing hardware
Chapter

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Mounting the computer onto a wall
Thecomputercanbemountedontoawall.Beforedoingthis,youwillrstneedto
install a UL listed VESA wall mount* (to be purchased separately) onto the back of
the computer.
To install a VESA wall mount
Note: Itmaybehelpfultoplacethecomputerface-downonasoftatsurface
for this procedure. Lenovo recommends that you use a blanket, towel, or
other soft cloth to protect the touch screen from scratching or other damage.
1. Remove the 2 screws that secure the stand to the computer, and then slide
the stand out.
2. Align the VESA wall mount with the mounting holes on the computer, and then
secure it to the computer with the 4 screws.
* VESA wall mount spec: VESA100, 100mm x 100mm, M4 bolts.

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Hardware Replacement Guide
Replacing a memory module
Attention:
Turn off the computer and wait 3 to 5 minutes to let the computer cool
down before removing the computer cover.
Note: Itmaybehelpfultoplacethecomputerface-downonasoftatsurface
for this procedure. Lenovo recommends that you use a blanket, towel, or
other soft cloth to protect the touch screen from scratching or other damage.
1. Remove any media (disks, CDs, or memory cards) from the drives, shut down
the operating system, and turn off the computer and all attached devices.
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power cords,
input/output (I/O) cables, and any other cables that are connected to the
computer. Refer to “Left and right view” and “Rear view” for help with locating
the various connectors.
4. Slide the computer cover piece as shown to remove it from the computer.

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5. Pushoutthelatchesonbothsidesofthememorysockettoreleasethe
memory module and gently pull the memory module upward to remove it from
its socket.All of the memory modules can be removed by using the same
procedure.
6. Align then insert the new memory module into the socket and push down on
the top edge of the memory module. Make sure the latches lock the memory
module in place.
7. Align then slide the computer cover back into position.

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Hardware Replacement Guide
Replacing the optical drive
Attention:
Turn off the computer and wait 3 to 5 minutes to let the computer cool
down before replacing the optical drive.
To remove the optical drive:
Note: Itmaybehelpfultoplacethecomputerface-downonasoftatsurface
for this procedure. Lenovo recommends that you use a blanket, towel, or
other soft cloth to protect the screen from scratching or other damage.
1. Remove any media (disks, CDs, or memory cards) from the drives, shut down
the operating system, and turn off the computer and all attached devices.
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power cords,
input/output (I/O) cables, and any other cables that are connected to the
computer. Refer to “Left and right view” and “Rear view” for help with locating
the various connectors.
4. Slide the computer cover piece as shown to remove it from the computer.
5. Loosen the screw that secures the optical drive to the chassis.

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6. Pushtheopticaldrivesothatitslidesoutofthedrivebay.
7. Pushasmallironstick(paperclip)intothesmallholeontheopticaldrivecover
so that the disk springs out as shown.
8. Remove the 2 screws that secure the optical drive to the metal bracket.
9. Useasmallatheadscrewdrivertopressandpushoutthepinsthatsecure
the cover to the disk.

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Hardware Replacement Guide
10. Separate the cover from the defective optical drive.
11. Install the new optical drive as follows:
(1) Align the new optical drive with the cover, and then push the cover back into
position.
(2) Screw the metal bracket back onto the new optical drive.
(3) Slide the new optical drive into the drive bay.
12. Screw the new optical drive back onto the chassis.
13. Slide the computer cover back into position.