Sun Microsystems Netra t 1120, Service Manual

Page: 66 / 148

7-4 Netra t 1120/1125 Service Manual • August 1998
7.2 To Remove the Top Access Cover
Caution – Wear an antistatic wrist strap and use an ESD-protected mat when
handling components. When servicing or removing system unit components, an ESD
Strap should be attached to the wrist, then to one of the connection points provided
on the system, and then the power connectors should be removed from the system
unit. Following this caution equalizes all electrical potentials with the system unit.
1. Attach the wrist strap.
See Section 7.1 “To Attach the Wrist Strap” on page 7-1.
2. Power off the system.
See Section 6.2 “To Power Off the System” on page 6-3.
3. Disconnect the input power connector(s).
4. Remove the rack fixing screws and withdraw the unit on its slides (if fitted).
To remove the top access cover, the unit may need to be completely removed from
the rack. If slides are fitted, disconnect the cables and release the slides. Place the
system on an approved work station/position.
5. Remove the two screws from the front of the top access cover and carefully store
them away from the system unit.
6. Refer to
FIGURE 7-3
. Place the system so that the extended tab of the top access
cover is facing you. To release the top cover, pull the tab towards you and lift the
cover off.
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