How to Remove the Power Distribution Board

Before You Begin

Complete these tasks:

• "How to Power Off the System"

• "How to Remove the Side Access Panel"

• "How to Avoid Electrostatic Discharge"

• "How to Remove the Fan Tray Assembly"

• "How to Remove a Power Supply"

If your system has two power supplies, remove both of them.

What to Do

1. Disconnect all cables attached to the power distribution board.

   Start at the top of the board and work your way down.

   1. Disconnect the keyswitch/LED cable at connector J0401.

   2. Disconnect the system interlock cable at connector J0501.

   3. Disconnect the two power sense cables at connectors J0201 and J0202.

   4. Disconnect the DC power cables at connectors J0204, J0205, and J0206.

   5. Disconnect the UltraSCSI power cable at connector J0207.

2. Loosen the two captive Phillips screws that secure the board to its mounting brackets.

   One screw is located at the top edge, and the other is located at the bottom edge of the power distribution board.

   Figure 9-5  

   
   

3. Remove the board from the chassis, and place it on an antistatic mat.

What Next

To replace the power distribution board, complete this task:

• "How to Install the Power Distribution Board"