Sun Microsystems Netra T4 AC100, Service And System Reference Manual

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5-2 Netra T4 AC100/DC100 Service and System Reference Manual • August 2001
Access to all other components requires removal of the top cover. This is achieved by
sliding the unit from the rack, if it is mounted on rails and there is sufficient height
above the unit to work, or removing the unit from the rack and carrying out the
procedure on a work bench.
Caution – Owing to the weight of the unit, two persons are required to remove the
unit from and replace it in the rack.
5.2 Tools
To perform the removal and fitting procedures described in Part 1 of this manual,
you will need the following tools:
■
Phillips No. 2 screwdriver, stubby
■
Phillips No. 2 screwdriver, 15 cm (6 in.)
■
Phillips No. 1 screwdriver, 10 cm (4 in.)
■
6 mm (0.25 in.) flat blade screwdriver, stubby
■
Grounding wrist strap
■
Anti-static mat
■
Torque tool (supplied with the system and located inside the system chassis)
5.3 System ON/STBY Switch
The Netra T4 system switch is a rocker, momentary switch that functions as a
standby device only, controlling logic circuits that enable power module output.
5.3.1 Powering On the System
Before powering on, inspect the supply conductors for mechanical security.