Digital Equipment VAXstation 3100 Maintenance Manual page 190

Expansion Boxes
169
4. Remove the two screws from the board and remove the board from the
expansion box.
S. Set the switch sertings on the new SCSI ID switch board to the same
position as on the old board you just removed. Figure
~20
shows the
switch settings and the SCSI address ID each setting represents.
6. Install the new SCSI ID switch board by reversing the previous procedure.
6.3.3.5 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 ~23).
3. Disconnect the two resistor load board power cables (Figure
~31).
MA·X1UD·H
Figure 6-31 TKSOZ Expansion Box Resistor Load Board Power Cables
4, Remove the resistor load board from the shield .
.5. Replace the resistor load board by reversing the previous procedure.