Compaq 7470 - Presario - 64 MB RAM Maintenance And Service Manual page 36

MSG index Product Description
Home Removal & Replacement
REMOVAL & REPLACEMENT PROCEDURES - BEFORE YOU
REMOVAL
SEQUENCE
BEGIN
Electrostatic
discharge
Service Considerations
Service
considerations Tool Requirements
Preparation
for
disassembly
Serial number
Chassis
Screws
Power supply
The screws used in these products are not interchangeable. If an incorrect screw is used during
Mass storage
the reassembly process, it could cause damage to the unit. Compaq strongly recommends that
devices
all screws removed during the disassembly process be kept with the part that was removed,
then returned to their proper locations.
Fax-modem
Parallel port
assembly
PCI bracket
System board
Cables and Connectors
components
Most cables used throughout the unit are ribbon cables. These must be handled with extreme
Instant On
care to avoid damage. Apply only the tension required to seat or unseat the cables during
button board
insertion or removal from the connector. Handle cables by the connector whenever possible. In
all cases, avoid bending, twisting, or tearing the cables, and ensure that they are placed in such
Creativity
a way that they cannot be caught or snagged by parts being removed or replaced.
Action Center
Ribbon Cable Positions
CD/DVD
storage)
CD-RW drive
optical storage)
Diskette drive
Maintenance and Service Guide
Compaq Presario 7400 Series Computers
Phillips screwdriver
Needle-nose pliers
Flathead screwdriver
Compaq Utilities software
As each subassembly is removed from the computer, it should
IMPORTANT:
be placed away from the work area to prevent damage.
CAUTION: When servicing these computers, ensure that cables
are placed in their proper location during the reassembly process.
Improper cable placement can cause severe damage to the unit.
(Primary optical
(Secondary
Troubleshooting
Jumper & Switch Information
Creativity Action
Center
Hard drive
Zip drive
Illustrated Parts Catalog
Specifications