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Summarization of Contents

Preface
About this manual
Explains the manual's service and reference information for ThinkPad i Series.
Related Publications and Diskettes
Lists related product publications and diskettes available through IBM or dealers.
General Descriptions
Important Service Information and FRU Strategy
Essential notes on service, diskette fixes, customer support, and FRU replacement strategy.
Hard Disk Drive Replacement Strategy
Error Message Guidance
Guidance on using error codes, POST messages, and compatibility matrices for troubleshooting.
Safety Notices
Safety Notice 1: Loose Parts
Warning about loose parts causing electrical shorts after FRU replacement.
Safety Notice 2: Battery Handling
Warning about standby batteries containing nickel/cadmium and proper disposal.
Safety Notice 3: Battery Safety
Warning about battery packs containing nickel and proper handling.
Safety Notice 4: Lithium Battery Hazards
Warning about lithium batteries causing fire/explosion if mishandled.
Safety Notice 5: LCD Fluid Exposure
Instructions for handling broken LCD panels and fluid exposure.
Safety Notice 6: Inverter Card Safety
Warning to avoid shock by not removing inverter card plastic cover.
Safety Notice 7: Main Battery Current
Warning about main batteries producing current that can cause burns.
Safety Notice 8: FRU Removal Precautions
Precautionary steps before removing any FRU (power off, unplug, etc.).
Safety Information
General Safety Practices
Rules for ensuring general safety during maintenance.
Electrical Safety Procedures
Rules to observe when working on electrical equipment.
Safety Inspection Guide
Guide to identify potentially unsafe conditions on products.
ESD Handling Guidelines
Guidelines for handling ESD-sensitive components to prevent damage.
Grounding Requirements
Importance of electrical grounding for operator safety and system function.
Read This First
Key Service Notes
Critical notes for authorized personnel servicing the computer.
Initial Service Procedures
Information required for the parts exchange or return form.
Warranty Information
Information about warranty coverage and exclusions for computer damage.
FRU Replacement Notices
LCD and Screw Replacement
Notices for LCD replacement criteria and special screw usage.
System Board/Inverter ID Restoration
Procedures for restoring LCD panel ID and vital product data.
Related Service Information
Password Management
Explanation of power-on, hard disk, and setup passwords.
Power Management Features
Standby and Hibernation Modes
Descriptions of standby and hibernation modes and their triggers.
Checkout Guide
Testing the Computer
Steps to run the PC-Doctor DOS diagnostic test program.
FRU Tests
System Board, Power, and LCD Tests
Applicable PC-Doctor tests for System Board, Power, and LCD components.
Component-Specific FRU Tests
Applicable PC-Doctor tests for Modem, Audio, Keyboard, Memory, and other components.
Symptom-to-FRU Index
Error Codes and Beep Symptoms
Lists error codes, messages, beep symptoms, and their FRU actions.
LCD-Related Symptoms
LCD Display Issues
Symptoms related to LCD backlight, darkness, and brightness/contrast adjustment.
Keyboard/TrackPoint and Indicator Symptoms
Power-Related Symptoms
Symptoms related to power issues like shutdown, not powering on/off.