Technician Notes - Compaq XL240 Maintenance & Service Manual

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Preface
The Maintenance and Service Guide is a troubleshooting guide that can be used as a reference when
servicing the Compaq Presario 1400 Series Portable Notebooks.
Compaq Computer Corporation reserves the right to make changes to Compaq Presario 1400 Series
Portable Notebooks without notice.
Symbols
The following words and symbols alert you to special messages throughout this guide.
Å
WARNING: Text set off in this manner indicates that failure to follow the
directions in the Warning could result in bodily harm or loss of life.
Ä Ä Ä Ä
CAUTION: Text set off in this manner indicates that failure to follow the directions
in the Caution could result in damage to equipment or loss of data.
Important: Text set off in this manner presents clarifying information or extra or
specific instructions.
Note: Text set off in this manner presents commentary or interesting points of
information.

Technician Notes

Å
WARNING: Only authorized technicians trained by Compaq should repair this
equipment. All troubleshooting and repair procedures are detailed to allow only
subassembly/module-level repair. Because of the complexity of the individual
boards and subassemblies, the user should not attempt to make repairs at the
component level or modifications to any printed circuit board. Improper repairs
can create a safety hazard. Any indications of component replacement or printed
circuit board modifications may void any otherwise valid warranty.
Serial Number
When requesting information or ordering spare parts, Compaq will need the Notebook's serial
number. The Serial Number
2 B Y B
EFORE OU EGIN
Presario 1400 Series
is located on the underside of the Notebook.
P N M
RESARIO OTEBOOK AINTENANCE AND
S G 1400 S
ERVICE UIDE ERIES