Sun Microsystems 5500, Reference Manual

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E-28 Sun Enterprise 6500/5500/4500 Systems Reference Manual • April 1998
6. Power on the Enterprise system.
See the power on instructions in Chapter 11 “Powering Off and On.”
E.3.3 Centerplane
E.3.3.1 Removing the Centerplane
1. Completely power off the Enterprise system.
See the power off instructions in Chapter 11 “Powering Off and On.”
2. Remove the top bezel.
See Chapter 12 “Preparing for Service,” for information on removing this assembly.
3. Remove the side vents. Push each side vent backwards until it stops. Then lift the
vent off the Enterprise system and set it aside.
4. Remove the top cover.
a. Locate the four plugs in each corner of the enclosure.
b. Lift each plug by pushing down in the dotted area.
This action causes the plug to pop up.
c. Remove each plug.
d. Lift up the front of the top cover and slide it backwards approximately 6-10
millimeters. Remove the top cover and set it aside.
5. Remove all the boards and power supplies.
See Chapters 3-6 for information on removing the boards and Chapter 7 “Power
Supplies,” for information on removing power supplies.
6. Loosen the bottom three captive screws securing the media tray to the enclosure.
Insert a screwdriver in the notch at the top center of the media tray to pull out the
tray and separate it from the rear slip connectors (
FIGURE E-17
).