3Com NETBuilder II Installing Instruction page 45

7 Remove the display board.
a Remove the five screws that secure the display board to the front of the
chassis.
b Gently pull the board away from the front panel and disconnect the ribbon
cable from the connector on the board.
c Remove the shroud behind the display board.
8 Reinstall the display board.
a Align the holes on the shroud with the holes on the guide posts.
b Reconnect the display board ribbon cable.
c Align the holes on the board with the holes on the shroud.
d Reinstall the five screws that secure the display board to the guide posts.
9 Slide the display board ribbon cable into the cable clamp.
10 Reinstall the front panel.
a Tip the top edge of the front panel slightly away from the chassis, and align
the tabs on the bottom with the hinges at the bottom of the chassis.
b Push the front panel against the chassis until the locking tabs snap
into place.
11 Reinstall the cover.
a Position the cover slightly behind the front of the chassis.
b Lower the cover and slide it toward the front of the chassis so that it
engages the front panel.
c Secure the cover with the screws you removed earlier from the back and
sides of the chassis.
12 If your system was previously mounted in a rack, reinstall the rack-mount
brackets on the chassis and remount the system.
13 Make sure the power switch is off (O is pressed down). Plug the power cord
into the power supply and outlet.
14 Turn on the system.
Maintenance and Repair 2-17