Grass Valley K2 Summit 3G v.8.0 - Manual (Page 108)

Disk backplane unit installation
Before doing this task, install the midplane board, if it is not already installed.
Installation of the diskplane unit is the reverse of removal except as follows:
• When installing screws, use the disk controller board to index the position of the disk backplane
unit.
Refer to the removal procedure for other installation steps.
Index the position of the disk backplane unit as illustrated.
Install 2 screws but do not tighten 1
While engaging the midplane connection
allow the disk backplane to
shift into position to engage
the disk controller board
connection
3
Slide the disk controller
board into position 2
Tighten the 2 disk backplane screws 4
Remove the disk controller board 5
Install and tighten remaining disk backplane screws 6
Midplane board removal
Before doing this task, remove the front bezel assembly, top cover, disk controller board, front
interconnect board, disk modules, and disk backplane unit.
A screwdriver with a shaft at least 7 inches long is recommended. Use the following view of the
midplane board to help you locate screws.
108 K2 Summit 3G Production Client Service Manual 02 February 2012
Removing and replacing FRUs