7 Power Supply



This chapter explains how to remove and replace a power supply.

Removing a Power Supply

To remove the power supply, follow these steps:

    1. Remove the disk or tape drive. Refer to Chapter 5, "Removing a Disk Drive Assembly" or Chapter 6, "Removing a Tape Drive Assembly."
    2. Detach your wrist strap and unplug the power cord connected to the DSM from the wall outlet.
    3. Locate the power supply.

    See Figure 7-1. Note that the tape drive version does not have the LED harness assembly.

    Figure 7-1 Power Supply Location

    4. Disconnect the power supply cable from the fan power cable.

    The fan assembly is mounted on the I/O bracket assembly.

    5. Disconnect the power supply cable from the LED harness assembly.

    A DSM with a tape drive does not have a LED harness assembly connected to the power supply. Skip this step if the DSM is a tape drive version.

    6. Grasp the handle on the front of the power supply and lift up and away from the Desktop Storage Module.

    See the following figure. Place the power supply aside.

    Figure 7-2 Removing the Power Supply

What's Next

You have removed the power supply from the DSM. If you removed the power supply to get access to the defective I/O bracket, see "Removing an I/O Bracket Assembly" in Chapter 8. See the following section if you removed the power supply because it is defective.

Replacing a Power Supply

Follow these steps to replace a power supply:

    1. Position the power supply so the handle on the power supply is at the front of the DSM.

    See Figure 7-3.

    2. Lower the rear of the power supply into the chassis.

    See Figure 7-3.

    Figure 7-3 Replacing the Power Supply

    3. Gently push on the power supply until it snaps into place.
    4. Connect the power supply cable to the LED harness assembly.

    The connectors are keyed, so they can be connected only one way. Skip this step if the DSM is the tape drive version. See Figure 7-1.

    5. Connect the power supply cable to the fan power cable.

    The fan assembly is mounted on the I/O bracket assembly. The connectors are keyed, and they can be connected one way only. Route the power supply cable through the clip located on the power supply.

    6. Replace the drive.

    See "Replacing a Disk Drive" in Chapter 5, if the DSM contains a disk drive. See "Replacing a Tape Drive" in Chapter 6, if the DSM contains a tape drive.