VME64x Bus Backplane
http://www.mcg.mot.com/literature
5-9
5
VME64x Bus Backplane
To remove or replace the backplane used in the MVME956AC chassis,
follow these procedures.
Removal
1. Turn the power OFF to all equipment and disconnect the power
cable from the AC power source.
2. Remove all external cabling connected to modules installed in the
chassis. Then remove all modules installed in the chassis.
3. Slide the MVME956AC chassis out from its rack mounting or
remove the top panel of your lab benchtop unit.
4. Remove the screws holding the top cover to the chassis and lift off
the top cover.
5. For better access to the backplane, you may remove the rear card file
subassembly from the rear of the chassis by removing the screws on
the left and right sides of the card file.
6. Remove all internal cables connected at the rear of the backplane.
7. Remove all power wires from the rear of the backplane.
Note: Mark the wire locations carefully so they can be correctly
reinstalled. Incorrect connection of these wires can cause damage to
the equipment.
8. Disconnect the bus bar’s ground and +5V by removing the screws
that attach it to the backplane.
9. Disconnect the stiffener bar from the chassis by removing the two
screws located on the left side of the chassis. Then, remove the two
screws on the right side of the chassis by accessing through the drive
cable access panel.
10. Loosen and remove the two rows of screws that secure the
backplane to the chassis frame members. Then remove the
backplane.