Digital Equipment VAXstation 3100 Maintenance Manual page 169

148 E)(panslon Boxes
8. Tip the RZ55 expansion box on its side, and remove the four power supply
screws (Figure 6-14).
u.-.xo111-11
Figure 6-14 RZ55 Expan1lon Box Power Supply Screw1
9.
Replace the power supply by reversing the previous procedure.
6.1.3.4 Resistor Load Board Removal
1.
Switch off power to the expansion box.
2. Unscrew the four cover screws and remove the expansion box cover
(Figure 6-5).
3.
Remove the three shield screws (Figure 6-6).
4. Lift
the shield
up,
disconnect the power cable from the resistor load board,
and remove the shield (with the resistor load board) from the expansion
box.