Canon imagePASS-P1, Service Manual, Page: 35 / 70

To replace the chassis fan
1. If you are installing a new chassis fan, attach the fan guard to the correct face of the new fan.
Use the fan guard and four rivets that you removed from the old chassis fan. Position the guard against the face of the new
fan so that the airflow arrow on the fan points toward the guard (see above Figure). Push each rivet all the way through its
mounting hole until the rivet snaps into the locked position.
2. Position the fan against the chassis.
When correctly positioned, the fan guard on the fan should face the motherboard, and the fan cable should reach its connector
on the motherboard.
3. Align the four holes on the fan with the four holes in the chassis, and replace the four rivets that secure the fan to the chassis
(see below Figure).
Hold the fan firmly against the chassis, and push each rivet all the way until it snaps into the locked position. Make sure that
the fan is tightly secured to the chassis.
1
Figure 23: Replacing the chassis fan
No. Item
1 Rivet (1 of 4)
4. Connect the fan cable connector to connector SYSFAN on the motherboard.
The cable connector is keyed to fit only one way.
5. Reassemble the imagePASS and verify its functionality (see “Restoring imagePASS functionality after service” on page
34 ).
■ Power supply
This section describes how to remove and replace the power supply. For more information about the power supply, see
“Specifications” on page 52 .
IMPORTANT:
Do not open the power supply for service or troubleshooting purposes. Opening the power supply voids the warranty.
To remove the power supply and power switch
1. Access and open the imagePASS, as described on “Accessing the imagePASS” on page 13 .
2. Remove the 24-pin power cable from the motherboard (see “Motherboard jumpers” on page 19 ).
3. Remove the 4-pin power cable from the motherboard (see “Motherboard jumpers” on page 19 ).
4. Remove the power cable from the power connector on the HDD (see “Motherboard jumpers” on page 19 ).
5. Remove the power supply cables from the plastic clips that secure them to the chassis.
6. Remove the four screws that attach the power supply to the chassis (see below Figure).
First remove the two crews that attach the power supply duct to the chassis. Remove the remaining two screws.
Set the screws aside so that you can replace them later.
3. REPLACING PARTS
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