iv PORTEGE M300 Maintenance Manual (960-504)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the PORTEGE M300 system unit and
each FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
FRUs.
Appendices The appendices describe the following:
Handling the LCD module
Board layout
Pin assignments
Display codes
Key layout
Wiring diagrams
BIOS Rewrite Procedures
EC/KBC Rewrite Procedures
Reliability