Kontron CG2100 Carrier Grade Server - Manual (Page 68)

67
4.7. Reconnect the SD flash module USB cable, if this option is installed.
5. Refasten the protective cover over the FP board.
6. If this is the last task you are performing inside the chassis, replace the air
duct, the riser card assembly, and the top chassis covers. For instructions, see
Section 3.2, “General Installation Procedures”.
5.5 Replacing the LED/Switch Board
The LED/switch board is mounted against the front panel of the CG2100 server chassis
because it supports the LEDs and switches that are on the control panel on the front
of the chassis. Before you can replace the LED/switch board, you must remove the front
chassis cover and the front bezel. You may also have to remove the front panel board,
or at least loosen it and slide it back, in order to access the LED/switch board
retaining screw.
Removing the Old LED/Switch Board
To remove the LED/Switch board:
1. Remove the front chassis cover. For instructions, see “Removing the Front Cover” in
Section 3.2.
2. Remove the front bezel. For instructions, see “Removing the Front Bezel” in Section
3.2.
3. Disconnect the LED/switch board power and signal ribbon cable from the FP board and
save it for reuse with the replacement board.
See Figure 59 for the location of this connector.
4. From behind the front panel, disconnect the LED/switch board ribbon cable and then
unfasten the screw on the top right side of the LED/switch board.
If you do not have enough room to access this screw, you will have to remove (or at
least slide back) the FP board. For instructions, see “Removing the Old Front Panel
Board” in Section 5.4.
5. The LED/switch board is also attached to the front of the chassis by two standoffs.
Once the retaining screw is removed, you need to pry the LED/switch board loose
from these standoffs to remove it.
Replacing the LED/Switch Light Pipe Assembly
1. Remove the black control panel module from the front of the chassis by lifting up
from the bottom and then pulling down to release the top tabs holding it into the
chassis frame.
2. Position the new control panel module with the top tabs in the appropriate slots.
Gently push down and in to secure the bottom of the panel to attach it to the
LED/switch board.
Installing the New LED/Switch Board
1. Connect the LED/switch board power and signal ribbon cable to the new LED/switch
board.
2. Align the left side of the LED/switch board with the two standoffs on the inside of
the front panel of the chassis and gently push the board to secure it to the
chassis frame.
3. Fasten the screw at the right of the LED/switch board to hold the board in place.
4. Replace the front panel board if you removed it or slid it out to work on the
LED/switch board installation. For instructions, see “Installing the New Front
Panel Board” in Section 5.4.