Sun Microsystems Netra t 1120, Service Manual

Page: 73 / 148

Chapter 8 Power Subassemblies 8-3
6. Using a No.2 Phillips-head screwdriver, loosen the eight external (see
FIGURE 8-3
)
and two internal (see
FIGURE 8-4
) captive screws securing the power supply to the
chassis.
FIGURE 8-3
Removing the Power Supply (#1)
7. Using a Phillips No. 2 screwdriver, remove the two captive screws securing the
power supply bracket to the chassis front crossmember (see
FIGURE 8-4
on
page 8-4).
8. Push the power supply forwards slightly to clear the earth grounding stud.
9. Lift the power supply from the chassis until it is restrained by the power supply
cables. Rest the power supply on the front crossmember of the enclosure.
10. Remove the cables from the clip retaining them to the processor mounting plate.
11. Disconnect the two cables from the alarms card. (To perform this it may be
necessary to remove a PCI card from the chassis.)
12. Disconnect the power supply cables from the motherboard.
13. Disconnect the power supply cable from the removable drive assembly.
14. Disconnect the power supply cable from the hard disk drive assembly or
assemblies.