HP 20-Feb manual Removing and Replacing the Power Supply, Removing the Power Supply

Removing and Replacing the Power Supply

A failing power supply on a 2/20 series library disables the library. A failing power supply on upper library levels results in a partial availability state.

Note	Power cycling the library at this point will result in a hard error. If
	you want to continue using the library in its partially available
	state, do not power cycle.

When the library is in a partial availability state, it is still functional, but is not in optimum configuration. When this occurs, the front panel will display Partly Available, and the illuminated LED beneath the front panel display will be solid amber until the condition is resolved (see Table 26 on page 139).

Removing the Power Supply

1.Power off the library.

2.Disconnect the power cord from the back of the power supply.

3.Loosen the thumbscrews at the top and bottom of the power supply. If the thumbscrews are too tight to loosen by hand, loosen them with a screwdriver.

4.Remove the stop bracket (if applicable). See Figure 56 on page 171.

5.Remove the power supply with one hand by pulling outward (see Figure 56 on page 171). Support the bottom of the power supply to avoid dropping the module.

Chapter 5

Chapter 5 Removing and Replacing the Power Supply 167