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Lenovo ThinkPad R50e, R51e, R52 Series Hardware Maintenance Manual
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.
Lenovo ThinkPad R50E specifications
| 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 |
Source: Lenovo ThinkPad R50e, R51e, R52 Series Hardware Maintenance Manual
All Lenovo ThinkPad R50E documents by type
Disassembly, diagnostics and part numbers, for repair.
Questions answered in these manuals
What must be done before replacing a FRU?
All diskette fixes should be installed before replacing any FRU listed in the manual.
From: Lenovo ThinkPad R50e, R51e, R52 Series Hardware Maintenance Manual
How are error codes used for diagnosis?
Use the error codes displayed on the screen to diagnose failures, starting with the first code.
From: Lenovo ThinkPad R50e, R51e, R52 Series Hardware Maintenance Manual
Where can I find guidelines for FRU replacement?
Guidelines are in the section titled "FRU 交換時の心得" (FRU replacement guidelines).