Technician Notes - Compaq Presario,Presario 18XL191 User Manual

Preface
This Maintenance and Service Guide is a troubleshooting guide for use as a reference when
servicing the Compaq Presario 1800 Series Notebook Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario
1800 Series Notebooks without notice.
Symbols
The following words and symbols mark special messages throughout this guide.
Å
WARNING: Text set off in this manner indicates that a failure to follow directions
in the warning could result in bodily harm or loss of life.
Ä
CAUTION: Text set off in this manner indicates that a failure to follow 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 specific
instructions.
Note: Text set off in this manner presents commentary, sidelights, or interesting
points of information.

Technician Notes

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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 to make 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 warranty.
2 B Y B
EFORE OU EGIN
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
P N M
RESARIO OTEBOOK AINTENANCE AND
S G 1800 S
ERVICE UIDE ERIES