Lenovo S230U, 33472YU manual Hardware Maintenance Manual

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Rotate the LCD unit in the direction shown by the arrow

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Detach the latches 11 . Then remove the keyboard bezel in the direction shown by the arrow

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68Hardware Maintenance Manual

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Contents Hardware Maintenance Manual ThinkPad S230uFirst Edition September Copyright Lenovo Contents Appendix A. Notices About this manual IiiIv Hardware Maintenance Manual Safety information General safetyElectrical safety Safety inspection guide Safety notices multilingual translations Grounding requirementsSafety information Hardware Maintenance Manual Safety information Perigo Perigo Vorsicht Vorsicht Vorsicht Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Strategy for replacing FRUs Important service informationBefore replacing parts Select Drivers & SoftwareImportant notice for replacing a system board How to use error messageDynamic Configure To Order CTO FRU identification for CTO, CMV, and GAV products Using PEWClick Warranty & Services Click Check Warranty Status Custom Model Variant CMVClick Parts & Accessories Click Product & Parts DetailGeneral checkout What to do firstCheckout guide Lenovo Solution CenterFollowing are not covered under warranty Quick test programsTests Tools Uefi diagnostic programBootable diagnostic programs Click Lenovo Bootable Diagnostics Power system checkoutChecking the ac power adapter Wire Voltage V dc Checking the battery packChecking the backup battery Checking operational chargingHardware Maintenance Manual Related service information Restoring the factory contents by using Recovery Disc SetRefreshing the computer Hard-disk password PasswordsPower-on password How to remove the hard-disk password Supervisor passwordHow to remove the power-on password Select Power-On PasswordHibernation mode Power managementSleep mode Select Master HDPNumeric error codes Wireless off modeSymptom-to-FRU index 0191 Run the ThinkPad Setup program, and then save Symptom or error FRU or action, in sequence 01890190 Charge the battery pack 0199 Run the ThinkPad Setup program, and then saveBeep symptoms Error messagesNo-beep symptoms Undetermined problems LCD-related symptomsIntermittent problems Reseat the LCD connectorsHardware Maintenance Manual Status indicators Indicator MeaningIndicator Meaning Special keys Special key DescriptionSpecial key Description Front view Locating computer controls, connectors, and indicatorsLocations Locating FRUs and CRUs Rear viewBottom view CRU statement for customers Description Self-service CRU Optional-service Major FRUs and CRUsCRU LCD FRUs Looking up FRU information Hinge Button boardHardware Maintenance Manual Plastic to plastic FRU replacement noticesScrew notices Logic card to plasticMTM on rear label Retaining serial numbersRestoring the serial number of the system unit Product ID on rear label Retaining the UuidReading or writing the ECA information Hardware Maintenance Manual Removing or replacing a FRU General guidelinesRemoving the SIM card Disabling the built-in batteryBefore servicing the computer Hard disk drive or solid-state driveRemoving or replacing a FRU Step Screw quantity Color Torque KeyboardRemoval steps of keyboard Removing or replacing a FRU PCI Express Mini Card for wireless LAN When installingRemoval steps of PCI Express Mini Card for wireless LAN Removal steps of PCI Express Mini Card for wireless WAN Removal steps of mSATA solid-state drive Step Screw cap Screw quantity Color Torque Keyboard bezel, backup battery, and speaker assemblyRemoval steps of keyboard bezel M2 × 3 mm, wafer-head, nylon-coated Silver 181 Nm Kgf-cm Hardware Maintenance Manual Battery pack Important notices for replacing a battery pack Proximity sensorsRemoval steps of proximity sensors Removal steps of thermal fan assembly LCD unit Removal steps of LCD unit When installing M2.5 × 3 mm, wafer-head, nylon-coated Silver 181 Nm Kgf-cm DC-in connector Removal steps of DC-in connectorImportant notices for handling the system board System board and base cover assemblyRemoval steps of system board and base cover assembly Applying labels to the base cover Following illustration shows the location of each label Removal steps of button bezel Button bezelLCD panel Button board Removal steps of LCD panelIntegrated camera Removal steps of button boardRemoval steps of hinge HingeRemoval steps of integrated camera When installing Removal steps of wireless antenna assembly Removing or replacing a FRU Hardware Maintenance Manual Appendix A. Notices Electronic emissions notices TrademarksPage 1P0B48943

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