This manual is the hardware maintenance manual for ThinkPad R50e series, ThinkPad Dock II, ThinkPad R52 series, and ThinkPad R51e series. It provides important service information, strategies for replacing components, and instructions on how to use error messages.
This manual is intended for trained service personnel who maintain ThinkPad R50e, R51e, and R52 laptops and the ThinkPad Dock II. It includes safety notices, general service information, and detailed procedures for replacing field replaceable units (FRUs).
The document contains product overviews, specifications, status indicators, FRU tests, key combinations, symptom‑to‑FRU indexes, error‑code diagnostics, and a comprehensive parts list with part numbers and diagrams.
| Processor (R50e series) | Intel Celeron M 350 (1.3 GHz), L2 1 MB cache |
|---|---|
| Processor (R51e series) | Intel Pentium M 755 (2.0 GHz), L2 1 MB cache |
| Processor (R51e series) | Intel Pentium M 770 (2.1 GHz), L2 2 MB cache |
All diskette fixes should be installed before replacing any FRU listed in the manual.
Use the error codes displayed on the screen to diagnose failures, starting with the first code.