Compaq 7470 Service Guide - Page 40

Power Supply

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MSG index Home Maintenance and Service Guide Compaq Presario 7400 Series Computers Product Description Removal & Replacement Troubleshooting Jumper & Switch Information Illustrated Parts Catalog Specifications Removal Sequence Before you begin Serial number Chassis Power supply Mass storage devices Fax-modem PCI bracket System board Instant On button board Creativity Action Center REMOVAL & REPLACEMENT PROCEDURES Power Supply 1 Perform preparation procedures. 2 Remove the chassis. 3 Gently lay the computer on its side with back connectors closest to the working surface. 4 Remove the four screws that secure the power supply to the back of the chassis as shown. 5 Slide the power supply away from the back of the chassis , rotate it up and away , and slide it to the right to remove it from the slots. 6 Disconnect the power supply cables from the system board, hard drive, floppy drive, and CD/DVD drive and remove the cables from the chassis. Replacement To replace the power supply, reverse this procedure.

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Maintenance and Service Guide
Compaq Presario 7400 Series Computers
MSG index
Product Description
Troubleshooting
Illustrated Parts Catalog
Home
Removal & Replacement
Jumper & Switch Information
Specifications
Removal Sequence
Before you begin
Serial number
Chassis
Power supply
Mass storage devices
Fax-modem
PCI bracket
System board
Instant On button board
Creativity Action Center
REMOVAL & REPLACEMENT PROCEDURES
Power Supply
1
Perform preparation procedures
.
2
Remove the chassis
.
3
Gently lay the computer on its side with
back connectors closest to the working
surface.
4
Remove the four screws that secure the
power supply to the back of the chassis as
shown.
5
Slide the power supply away from the back
of the chassis
, rotate it up and away
,
and slide it to the right to remove it from
the slots.
6
Disconnect the power supply cables from
the system board, hard drive, floppy drive,
and CD/DVD drive and remove the cables
from the chassis.
Replacement
To replace the power supply, reverse this
procedure.