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Lenovo S230U, 33472YU manual If the voltage is not correct, replace the backup battery

Models: 33472YU S230U

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•If the voltage is not correct, replace the backup battery.

•If the backup battery discharges quickly after replacement, replace the system board.

30Hardware Maintenance Manual

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Lenovo S230U, 33472YU manual If the voltage is not correct, replace the backup battery, Hardware Maintenance Manual

Contents

ThinkPad S230u Hardware Maintenance ManualFirst Edition September Copyright Lenovo Contents Appendix A. Notices About this manual ThinkPad S230u Machine Typeiv Hardware Maintenance Manual Chapter 1. Safety information General safetyElectrical safety Safety inspection guide Handling devices that are sensitive to electrostatic dischargeSafety notices multilingual translations Grounding requirementsDANGER Chapter 1. Safety information DANGER DANGER DANGER DANGER DANGER DANGER6 Hardware Maintenance Manual DANGERChapter 1. Safety information 8 Hardware Maintenance Manual PERIGO PERIGO PERIGO PERIGO PERIGO PERIGOChapter 1. Safety information PERIGO PERIGO DANGER DANGER DANGER10 Hardware Maintenance Manual DANGER DANGER DANGER DANGER DANGERVORSICHT Chapter 1. Safety information VORSICHT VORSICHT VORSICHT VORSICHT12 Hardware Maintenance Manual VORSICHT VORSICHT VORSICHTChapter 1. Safety information 14 Hardware Maintenance Manual Chapter 1. Safety information 16 Hardware Maintenance Manual Chapter 1. Safety information 18 Hardware Maintenance Manual Chapter 1. Safety information 20 Hardware Maintenance Manual Chapter 2. Important service information Strategy for replacing FRUsBefore replacing parts 3. Select Drivers & SoftwareHow to use error message Important notice for replacing a system boardStrategy for replacing FRUs for CTO, CMV, and GAV Product definition Dynamic Configure To Order CTOFRU identification for CTO, CMV, and GAV products Using PEWUsing eSupport 2. Click Warranty & Services 3. Click Check Warranty Status2. Click Parts & Accessories 4. Click Product & Parts DetailChapter 3. General checkout What to do firstLenovo Solution Center Checkout guideQuick test programs The following are not covered under warrantyUEFI diagnostic program Bootable diagnostic programsPower system checkout Checking the ac power adapter2. Click Lenovo Bootable Diagnostics Checking the battery pack Checking the backup batteryChecking operational charging If the voltage is not correct, replace the backup battery 30 Hardware Maintenance ManualChapter 4. Related service information Restoring the factory contents by using Recovery Disc SetService Web site Operating System Recovery Disc one discUsing the Windows recovery programs on the Windows 8 operating system 2. Insert the Operating System Recovery Disc into the DVD driveChange PC settings General Restoring the computer to factory default settingsPasswords Power-on passwordHard-disk password Change PC settings GeneralSupervisor password How to remove the power-on passwordHow to remove the hard-disk password 6. Select Power-On PasswordPower management Sleep modeHibernation mode 6. Select Master HDPWireless off mode Symptom-to-FRU indexNumeric error codes Symptom or error Charge the battery packRun the ThinkPad Setup program, and then save current setting by pressing F10Error messages No-beep symptomsBeep symptoms Symptom or error beeps, if anyLCD-related symptoms Intermittent problemsUndetermined problems 1. Turn off the computer Chapter 5. Status indicators IndicatorMeaning Indicator MeaningChapter 6. Special keys Special keyDescription Special key DescriptionPress this key to view the programs that you have opened Locating computer controls, connectors, and indicators Chapter 7. LocationsFront view Rear view Bottom viewLocating FRUs and CRUs This topic introduces the following service partsCRU statement for customers Major FRUs and CRUs Self-service CRUOptional-service 48 Hardware Maintenance ManualSelf-service CRU Optional-serviceDescription LCD FRUs Self-service CRUOptional-service 50 Hardware Maintenance ManualLooking up FRU information Self-service CRUOptional-service Description52 Hardware Maintenance Manual Chapter 8. FRU replacement notices Screw noticesPlastic to plastic Logic card to plasticRetaining serial numbers Restoring the serial number of the system unitMTM on rear label Retaining the UUID Reading or writing the ECA informationProduct ID on rear label 56 Hardware Maintenance Manual Chapter 9. Removing or replacing a FRU General guidelinesDANGER Disabling the built-in battery Before servicing the computerRemoving the SIM card 1010 Hard disk drive or solid-state driveRemoval steps of hard disk drive or solid-state drive bracket Chapter 9. Removing or replacing a FRU1020 Keyboard 60 Hardware Maintenance ManualRemoval steps of keyboard StepChapter 9. Removing or replacing a FRU 1030 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 64 Hardware Maintenance ManualStep Screw quantityRemoval steps of mSATA solid-state drive Chapter 9. Removing or replacing a FRU1050 Keyboard bezel, backup battery, and speaker assembly Removal steps of keyboard bezelStep Screw quantityWhen installing StepScrew quantity Color68 Hardware Maintenance Manual Rotate the LCD unit in the direction shown by the arrow1060 Battery pack Removal step of backup battery DANGERRemoval steps of speaker assembly Step1070 Proximity sensors Removal steps of battery pack DANGERImportant notices for replacing a battery pack StepRemoval steps of proximity sensors StepScrew quantity ColorRemoval steps of thermal fan assembly 72 Hardware Maintenance Manual1090 LCD unit Removal steps of hard disk drive or solid-state drive connector74 Hardware Maintenance Manual Removal steps of LCD unitStep Screw quantityWhen installing 76 Hardware Maintenance Manual StepScrew quantity Color1100 DC-in connector Removal steps of DC-in connectorChapter 9. Removing or replacing a FRU 1110 System board and base cover assembly Removal steps of system board and base cover assemblyApplying labels to the base cover The following illustration shows the location of each label 2010 Button bezel 2020 LCD panelRemoval steps of button bezel 2030 Button board 82 Hardware Maintenance ManualRemoval steps of LCD panel Step2040 Integrated camera Removal steps of button boardStep Screw quantity2050 Hinge Removal steps of integrated cameraRemoval steps of hinge When installing When you pull the cables through the hole in the hinge, rout the cables as shown in the following illustrationRemoval steps of wireless antenna assembly 86 Hardware Maintenance ManualChapter 9. Removing or replacing a FRU Note Some models might not have the wireless WAN antennas 88 Hardware Maintenance ManualAppendix A. Notices Lenovo United States, Inc 1009 Think Place - Building OneMorrisville, NC U.S.A Attention Lenovo Director of Licensing Electronic emissions notices TrademarksPage 1P0B48943 Part Number 0B48943 Printed in 1P P/N 0B48943