Sun Microsystems SPARCstation 2 Service Manual page 75

To replace a new power supply follow these steps:
1. Align the new power supply correctly as shown in Figure 4-9 with the
tabs and guides in the bottom of the chassis.
2. Position the power supply by pushing it firmly toward the rear of the
chassis until it locks into the tabs.
3. Connect the power cable to the white 12-pin connector (J0701) on the main
logic board.
The connector is keyed so that the power cable will fit only one way (see
Figure 4-9).
4. Secure the power supply to the chassis by installing the screw through the
rear panel of the chassis (see Figure 4-9).
5. Replace the system unit's top cover.
See "Replacing the System Unit's Cover" near the end of this chapter.
6. Connect the power cord to the system unit.
7. Turn the system unit's power on, and check for proper operation of the
system unit and the newly replaced power supply.
See "How to Turn the Power Back On" towards the end of this chapter.
If the newly replaced power supply still does not work properly, a problem
exists in the system unit, such as a blown component or a short circuit.
Refer to the section "Before Replacing the main Logic Board" later in this
document for power supply voltage measurement procedures.
Note – Make sure the power supply is connected to the main logic board before
making any voltage measurements.
FRU Replacement
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