Repair manual

PARTS REPLACEMENT
4-25
I. REPLACING THE POWER SUPPLY BOARD ASSEMBLY
1. REMOVAL: (Figure 4-9)
a. Disconnect AC power from the system.
b. Remove the six screws and washers holding the Cover to the bottom of
the chassis (Figure 4-2). Slide the cover to the rear and off the chassis.
c. Disconnect the chassis-ground cable.
d. Disconnect the power switch cable connector.
e. Unplug the three lines that bring power to the Logic Board.
f. Remove the four screws securing the Power Supply Board to the chassis.
g. Lift the Power Supply Board Assembly out of the chassis.
2. INSTALLATION:
a. Secure the Power Supply Board Assembly to the chassis using the four
screws.
b. Plug in the three lines which run from the Logic Board.
c. Connect the two pin power switch cable.
d. Connect the chassis-ground cable.
e. Replace the Cover on the chassis and secure is with the six screws
(Figure 4-2).