Compaq Deskpro EX Series of Personal Computers vii
preface
A
BOUT
T
HIS
G
UIDE
This Maintenance & Service Guide is a troubleshooting and repair guide that can be used
for reference when servicing the Compaq Deskpro EX Series of Personal Computers.
Only authorized technicians trained by Compaq should attempt to repair this equipment.
Compaq Computer Corporation reserves the right to make changes to these models
without notice.
Symbols and Conventions
The following text and symbols mark special messages throughout this guide:
!
WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result
in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage
to equipment or loss of data.
✎
Text set off in this manner presents commentary, sidelights, clarifying information, or
specific instructions.
Technician Notes
!
WARNING: Only authorized technicians trained by Compaq should attempt to 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, no one should attempt to make
repairs at the component level or to make modifications to any printed wiring board. Improper repairs can
create a safety hazard. Any indications of component replacement or printed wiring board modifications
may void any warranty.
!
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power grounding plug. The grounding plug is an important safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all times.
• Disconnect the power from the computer by unplugging the power cord either from the electrical
outlet or the computer.
CAUTION: To properly ventilate your system, you must provide at least 3 inches (7.6 cm) of clearance
at the front and back of the computer.
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