HP SureStore E Disk Array FC60 Service Manual (A5635A)

274 Controller Enclosure Troubleshooting
Power Interface Board
Introduction
This section describes procedures to troubleshoot the controller enclosure power interface
board. For troubleshooting procedures, refer to the "Master Troubleshooting Table" on
page 275
Servicing Notes
C
AUTION
The controller enclosure’s power supply assembly must be serviced by a
trained service technician ONLY.
The power supply assembly has a modular design. It is a single, removable unit, that
consists of the Power Interface Board and attached sheet metal frame. If you need to
replace the Power Interface Board, you must replace the entire power supply assembly, not
just the board.
If there is an intermittent or complete power loss to the controller module, Battery Backup
Unit, or controller enclosure fan module, it might be caused by either a defective power
harness or Power Interface Board. The procedure in this section explains how to replace
the power supply assembly, which includes the Power Interface Board. It assumes that you
have already checked the power cords, checked for a failed power supply (see "Power
Supply Module" on page 267), and replaced the power harnesses.