Safety information | Lenovo 33472YU, S230U guide

Chapter 1. Safety information 13

Image 19

Lenovo 33472YU, S230U manual Safety information

Contents

ThinkPad S230u Hardware Maintenance Manual First Edition September Copyright Lenovo Contents Appendix A. Notices Iii About this manual Iv Hardware Maintenance Manual General safety Safety information Electrical safety Safety inspection guide Grounding requirements Safety notices multilingual translations Safety 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 Select Drivers & Software Important service informationBefore replacing parts Strategy for replacing FRUs Dynamic Configure To Order CTO How to use error messageImportant notice for replacing a system board Custom Model Variant CMV Using PEWClick Warranty & Services Click Check Warranty Status FRU identification for CTO, CMV, and GAV products Click Product & Parts Detail Click Parts & Accessories What to do first General checkout Quick test programs Lenovo Solution CenterFollowing are not covered under warranty Checkout guide Bootable diagnostic programs Uefi diagnostic programTests Tools Checking the ac power adapter Power system checkoutClick Lenovo Bootable Diagnostics Checking operational charging Checking the battery packChecking the backup battery Wire Voltage V dc Hardware Maintenance Manual Restoring the factory contents by using Recovery Disc Set Related service information Refreshing the computer Power-on password PasswordsHard-disk password Select Power-On Password Supervisor passwordHow to remove the power-on password How to remove the hard-disk password Select Master HDP Power managementSleep mode Hibernation mode Symptom-to-FRU index Wireless off modeNumeric error codes 0199 Run the ThinkPad Setup program, and then save Symptom or error FRU or action, in sequence 01890190 Charge the battery pack 0191 Run the ThinkPad Setup program, and then save No-beep symptoms Error messagesBeep symptoms Reseat the LCD connectors LCD-related symptomsIntermittent problems Undetermined problems Hardware Maintenance Manual Indicator Meaning Status indicators Indicator Meaning Special key Description Special keys Special key Description Locations Locating computer controls, connectors, and indicatorsFront view Bottom view Rear viewLocating FRUs and CRUs CRU statement for customers Major FRUs and CRUs Description Self-service CRU Optional-service CRU LCD FRUs Hinge Button board Looking up FRU information Hardware Maintenance Manual Logic card to plastic FRU replacement noticesScrew notices Plastic to plastic Restoring the serial number of the system unit Retaining serial numbersMTM on rear label Reading or writing the ECA information Retaining the UuidProduct ID on rear label Hardware Maintenance Manual General guidelines Removing or replacing a FRU Hard disk drive or solid-state drive Disabling the built-in batteryBefore servicing the computer Removing the SIM card Removing or replacing a FRU Removal steps of keyboard KeyboardStep Screw quantity Color Torque Removing or replacing a FRU When installing PCI Express Mini Card for wireless LAN Removal 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 Removal steps of keyboard bezel Keyboard bezel, backup battery, and speaker assemblyStep Screw cap Screw quantity Color Torque M2 × 3 mm, wafer-head, nylon-coated Silver 181 Nm Kgf-cm Hardware Maintenance Manual Battery pack Proximity sensors Important notices for replacing a battery pack Removal 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 Removal steps of DC-in connector DC-in connector Removal steps of system board and base cover assembly System board and base cover assemblyImportant notices for handling the system board Applying labels to the base cover Following illustration shows the location of each label LCD panel Button bezelRemoval steps of button bezel Removal steps of LCD panel Button board Removal steps of button board Integrated camera Removal steps of integrated camera HingeRemoval steps of hinge When installing Removal steps of wireless antenna assembly Removing or replacing a FRU Hardware Maintenance Manual Appendix A. Notices Trademarks Electronic emissions noticesPage 1P0B48943