Option Backplane Replacement - DEC VAXmate Service Manual

FRU Replacement
IIIII
5.3.35 Option Backplane Replacement
l.
Gain access to the expansion box card cage (Paragraph 5.3.32).
2. Remove the hard disk controller board (Paragraph 5.3.33).
3. Remove any option boards present in the card cage (Paragraph 5.3.34).
4. Remove the battery cable from its restraining tabs on the card cage.
5. Remove the four backplane holding screws (Figure 5-53) and remove the
back shield from the card cage.
NOTE
Note the position of the small metal strip that has tabs to ground
options installed in the backplane. On reassembly, the tabs do not
touch the backplane. They are 135
0
away from the back of the
backplane.
Figure 5-53 Removing Backplane
5-67