Put the provided ESD wrist strap on
your wrist ensuring that the metal contact is touching your skin.
Then attach (snap) one end of the ground cable to the wrist strap
and remove the alligator clip from the banana clip on the other
end of the ESD grounding cable. Plug the banana clip end into one
of the ESD ports located on the front of the chassis before handling
ESD sensitive hardware. For details on the ESD port location, see PA-7050 Front Panel (AC).
Power off the failed power supply; the switch is on the
back of the chassis. Then unplug and remove the power cord (leaving
the cord in place can cause arcing inside the chassis).
The front power supplies correspond directly to the power
connection on the back of the chassis. For example, if you are facing
the front of a PA-7050 chassis, the power supply on the far left
corresponds to the switch and cord located on the far right when
facing the back of the chassis.
Loosen the power supply thumb screw located at the top
left of the power supply.
Pull the power supply ejector handle out and down from
the top center of the power supply to disengage it from the chassis
and then slide the power supply out of the chassis using the handle.
Remove the replacement power supply from the packaging
and open the front ejector handle until it is fully open.
Slide the new power supply into the empty power supply
slot until it is almost fully seated. Ensure that the notch near
the hinged part of the ejector handle lines up with the chassis,
so that you can close the handle and properly seat the power supply.
Tighten the upper left thumb screw on the power supply
to secure the power supply.
Plug the power cable into the corresponding AC power
module on the back of the chassis and turn on the power switch.
The new power supply turns on and the LED will turn green.