Maintenance Manual (960-942) iii
PORTEGE X40-J Series
The manual is divided into the following parts:
Chapter 1
Hardware Overview describes the 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
■ Keyboard scan/character codes
■ Key layout
■ Wiring diagrams
■ BIOS rewrite procedures
■ EC/KBC rewrite procedures
■ Reliability
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