Sun Oracle Sun Fire X4270 M2 Service Manual page 147

c. Attach an antistatic wrist strap.
See Section 2.9, "Performing Electrostatic Discharge and Antistatic Prevention
Measures" on page
d. Remove the top cover.
See Section 2.10, "Removing the Server's Top Cover" on page
2. Remove the power distribution board (
a. Disconnect the power supply ribbon cable from the power distribution board
[1].
b. Disconnect the top cover interlock cable from the power distribution board
[2].
c. Disconnect the motherboard ribbon cable from the power distribution board
[2].
d. Remove the four No. 2 Phillips screws securing the power distribution board
to the chassis [3].
e. Remove the five No. 2 Phillips screws securing the power distribution board
to the bus bar [3].
f. To disconnect the power distribution board from the connector board, slide
the power distribution board away from the chassis wall [4].
g. Lift the power distribution board up and out of the chassis [4].
3. Place the power distribution board on an antistatic mat.
2-31.
FIGURE 5-8
Chapter 5 Servicing Infrastructure Components
2-33.
).
5-19