Sun Microsystems Sun Fire E25K Service Manual page 83

6.1.2.3 Removing a System Control (SC) Board
Caution – Be sure you are properly grounded before you begin the hardware
removal and installation. There are four ground points on the system cabinet, two at
the front top left and top right, and two at the rear top left and top right.
1. Open the Sun Fire E25K/E20K system cabinet access doors.
Caution – Before removing a board from the system, the green activation LED must
be off and the amber or blue removal OK LED must be on. See
"Powering Off a System Control (SC) Board" on page
2. Label and remove the I/O cables from the SC board.
3. Insert a Phillips No. 1 screwdriver into the pawl latches turning counterclockwise
to release the lever and lift the carrier insert-eject lever.
4. Apply equal pressure to both insert-eject levers in the unlocking direction and
pull the board outward to release it from the centerplane support board.
(
FIGURE 6-2
5. Use the front handle to extract the SC board, supporting the bottom with the other
hand, and place it on a flat, sturdy, ESD-protected surface with the component
side up.
6. Review the platform message log to verify SMS has received the message that the
component has been removed, by typing:
sc% showlogs -F
Review the board removal message. You will see a message similar to the one below.
Jun 16 14:28:05 2003 sun15-sc0: esmd[7167]: [0 4824421445907014
NOTICE Boards.cc 1646] SC at IOx removed
where x is the SC assembly 0 or 1.
).
Section 6.1.2.2,
6-4.
Chapter 6 System Control (SC) Board 6-7