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Rules to ensure general safety during maintenance and operation of the machine.
Precautions for working with electrical current from power, telephone, and communication cables.
Guide to identifying potentially unsafe conditions on products and performing safety checks.
Precautions for handling components sensitive to static electricity.
Importance of electrical grounding for operator safety and system function.
Guidance on preventing unnecessary expenses for replacing and servicing FRUs.
Procedure for replacing hard disk or solid-state drives, including data backup.
Handling precautions for sensitive system board components and VPD update.
Procedure to diagnose failures using error codes displayed on the screen.
Information about model types and FRU identification for different configurations.
Diagram and labels for the front view of the computer.
Diagram and labels for the rear view of the computer.
Procedure to determine the cause of a problem by checking computer status and error messages.
Information to assist in problem determination, including machine details and failure symptoms.
Lists error symptoms and possible causes to help decide which FRUs to have available.
Identifies causes and FRU/actions for hard disk drive boot errors.
Procedures to check and verify power supply issues.
Describes beep symptoms during POST and their corresponding FRU/actions.
Lists POST error codes, their messages, and descriptions/actions.
Lists various error messages and their corresponding FRU/actions.
Instructions on how to find out failing devices or adapters when problems are undetermined.
Precautions to avoid static-electricity damage when handling computer components.
List of common service tools prepared for computer servicing.
Categorizes parts into Self-service CRUs, Optional-service CRUs, and FRUs.
Diagram of the system board with numbered components.
Instructions for removing and installing computer hardware.
Connecting external options and installing required software or drivers.
Prerequisites and steps for removing the computer cover.
Prerequisites and steps for removing the front bezel.
Prerequisites and replacement steps for the optical drive.
Prerequisites and replacement steps for the drive bay assembly.
Guidelines and steps for handling and replacing the hard disk drive.
Prerequisites and removal/installation steps for memory modules.
Information about the coin-cell battery and its function.
Prerequisites and access steps for PCI Express cards.
Guidelines and steps for handling and replacing M.2 SSD and heat sink.
Steps for removing and installing the M.2 solid-state drive bracket.
Safety warnings and steps for accessing the power supply assembly.
Prerequisites and access steps for removing and installing the Wi-Fi card.
Prerequisites and steps for disconnecting the internal speaker cable.
Prerequisites and steps for disconnecting the thermal sensor cable.
Prerequisites and replacement steps for the front fan.
Prerequisites and replacement steps for the rear fan.
Steps for disconnecting the front and rear Wi-Fi antenna cables.
Prerequisites and steps for disconnecting the card reader cable.
Prerequisites and steps for disconnecting the microprocessor fan cable.
Prerequisites and steps for removing the microprocessor and heat sink.
Prerequisites and steps for removing the system board.
Procedure for installing the microprocessor socket cover.
Information regarding Lenovo products, services, patents, and warranties.
Lists trademarks of Lenovo, Intel, DisplayPort, HDMI, Wi-Fi, and USB-C.
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