Lenovo 5106, 5114, 5150, 5110 manual Replacing the internal speakers, Removing the internal speakers

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Replacing the internal speakers

Attention:

Do not open your computer or attempt any repair before reading and understanding the “Important Safety Information” on page 1.

This section provides instructions on how to replace the internal speakers.

Removing the internal speakers

To remove the internal speakers, do the following:

1.Turn off the computer.

2.Disconnect all cables, power cords, and external options from your computer. See “Locating connectors on the rear of your computer” on page 68.

3.Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up.

4.Remove the computer cover. See “Removing the computer cover” on page 74.

5.Note the location of the internal speaker cable connection. Note the routing of the internal speaker cables. Disconnect the internal speaker cables from the system board.

6.Remove the screw that secures each of the internal speakers to the front bezel.

7. Remove the internal speakers and internal speaker cables from the computer.

Installing internal speakers

To install internal speakers, do the following:

1.Turn off the computer.

2.Disconnect all cables, power cords, and external options from your computer. See “Locating connectors on the rear of your computer” on page 68.

3.Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up.

4.Remove the computer cover. See “Removing the computer cover” on page 74.

5.Route the internal speaker cables and then position new internal speakers over the front bezel and make sure the four screw holes of each internal speaker align with those in the front bezel.

6.Reinstall the screw to secure the internal speakers to the front bezel.

94ThinkCentre Hardware Maintenance Manual

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Contents ThinkCentre Hardware Maintenance Manual Page ThinkCentre Hardware Maintenance Manual Second Edition September Copyright Lenovo Contents Appendix A. Notices 117 Important Safety Information About this manualThinkCentre Hardware Maintenance Manual General safety Safety informationElectrical safety ThinkCentre Hardware Maintenance Manual Safety inspection guide Handling electrostatic discharge-sensitive devicesSafety notices multi-lingual translations Grounding requirementsTo Connect To Disconnect ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Safety information Perigo Cuidado Para Conectar Para DesconectarPerigo Safety information ThinkCentre Hardware Maintenance Manual Safety information Connexion Déconnexion ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Vorsicht Achtung ThinkCentre Hardware Maintenance Manual Safety information Pericolo Per collegarsi Per scollegarsiPrestare attenzione nel sollevare lapparecchiatura ThinkCentre Hardware Maintenance Manual Peligro No debe Adopte procedimientos seguros al levantar el equipo ThinkCentre Hardware Maintenance Manual Specifications Accessing Lenovo programs on the Windows 7 operating systemGeneral information Lenovo programsProgram Icon name Program Control Panel section Green text in Control PanelAccessing Lenovo programs on the Windows 8 operating system Additional information resourcesThinkCentre Hardware Maintenance Manual Problem determination tips General CheckoutThinkCentre Hardware Maintenance Manual Basic troubleshooting Troubleshooting and diagnosticsSymptom Action Accessing Control Panel on the Windows 8 operating system Troubleshooting procedureTroubleshooting No audio in Windows Audio problemsSound comes from one external speaker only No audio in DOS applications or games CD problemsCD or DVD does not work DVD problems Black screen instead of DVD videoDVD movie will not play No audio or intermittent audio while playing DVD movieIntermittent problems Keyboard, mouse, or pointing device problemsPlayback is very slow or choppy Invalid disc or no disc found messageMouse or pointing device does not work All or some keys on the keyboard do not workPointer on the screen does not move smoothly with the mouse Monitor problems Wireless keyboard does not workFingerprint reader does not work Wrong characters appear on the screenImage appears to be flickering Image is discoloredNetworking problems Ethernet problemsWireless LAN problem Adapter stops working for no apparent reasonWireless WAN problem Option problemsBluetooth problems Performance and lockup problems An option that was just installed does not workAn option that previously worked does not work now Insufficient free hard disk drive spaceExcessive number of fragmented files Click Start ComputerPrinter problems Serial port problemsSoftware problems Software does not work as expectedDiagnostics USB problemsLenovo Solution Center Troubleshooting and diagnostics ThinkCentre Hardware Maintenance Manual Using the Setup Utility program Starting the Setup Utility programViewing and changing settings Using passwordsPassword considerations Power-On PasswordAdministrator Password Hard Disk PasswordEnabling or disabling a device Selecting a startup deviceSelecting a temporary startup device Selecting or changing the startup device sequenceEnabling ErP compliance mode Exiting the Setup Utility program ThinkCentre Hardware Maintenance Manual Symptom-to-FRU Index Hard disk drive boot errorPower Supply Problems Beep symptomsPost error codes Beep Symptom FRU/ActionShort and 1 long beeps Dram memory error Error code Post Error Message Description/ActionMessage/Symptom FRU/Action Miscellaneous error conditionsDisplay/Monitor Message/Symptom FRU/Action Undetermined problems ThinkCentre Hardware Maintenance Manual Front connector, control, and indicator locations LocationsLocating connectors on the rear of your computer Rear connector locationsLocating major FRUs and CRUs Number FRU description Self-service CRU Optional-service CRU Looking up FRU informationLocations of the parts and connectors on the system board Locating parts on the system boardThinkCentre Hardware Maintenance Manual Replacing FRUs Adjusting the computer standRemoving the computer stand Removing the computer cover Opening and closing the system board shielding Opening the system board shieldingClosing the system board shielding Replacing FRUs Replacing the rear I/O shielding Installing the rear I/O shieldingRemoving the rear I/O shielding Replacing the hard disk drive Removing the hard disk driveInstalling a hard disk drive Replacing the optical drive Installing an optical drive Removing the optical driveReplacing the memory module Installing a memory module Removing the memory moduleReplacing the microprocessor fan assembly Removing the microprocessor fan assemblyThinkCentre Hardware Maintenance Manual Installing a microprocessor fan assembly Replacing the microprocessor and heat sink assembly Removing the microprocessor and heat sink assembly Installing the microprocessor and heat sink assembly Replacing FRUs Replacing the system board Removing the system boardInstalling a system board Replacing the internal speakers Installing internal speakersRemoving the internal speakers Replacing the rear I/O assembly Removing the rear I/O assemblyInstalling a rear I/O assembly Replacing the inverter Removing the inverter Installing an inverter Replacing the battery Removing the batteryReplacing the power supply assembly Installing a batteryRemoving the power supply assembly ThinkCentre Hardware Maintenance Manual Installing a power supply assembly ThinkCentre Hardware Maintenance Manual Replacing the LCD panel Removing the LCD panelInstalling an LCD panel Replacing the Wifi card Removing the Wifi cardInstalling the Wifi card Installing a computer wall mount Completing the FRU installationInstalling a computer cover Installing a computer standReplacing FRUs ThinkCentre Hardware Maintenance Manual Additional Service Information Updating flashing the Bios from a disc Updating flashing the Bios from your operating system Recovering from a POST/BIOS update failureAutomatic configuration and power interface Acpi Bios Power managementAutomatic Power-On features Appendix A. Notices Television output notice European conformance CE mark TrademarksIndex 119Page Page Part Number 1P P/N
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