Specifications

X723-300151 8-8 Issue 2
8.6 Maintenance
PSU Replacement
A PSU is faulty if the 'Power Good' LED is not illuminated when switched
on.
A PSU must be switched off before it is plugged into or unplugged from a
live system.
If a PSU is switched off it should not be switched back on again for a
period of 30 seconds.
The internal protection circuit causing a shut down due to overload or
other cause may take a considerable time to reset. If this occurs leave the
PSU switched off for an extended period (e.g. 15 minutes) and then switch
on again.
Warning: A non illuminated LED does not necessarily mean there is no
power to the equipment. Always remove the AC mains input connectors
before attempting to service the equipment.
Fan Unit Replacement (when fitted)
SAFETY: AC versions of the equipment must be powered down and
THE MAINS LEAD DISCONNECTED
before removing a Fan Unit assembly.
A Fan Unit assembly may be replaced by removing the rear panel fixings
and disconnecting the in-line connector. Care must be taken when fitting
the fan to ensure the airflow is from the inside of the unit to the outside.