Learn how to replace a Base Card in the PA-5450 firewall.
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 back of the appliance before handling
ESD sensitive hardware. For details on the ESD port location, see PA-5450 Back Panel.
Ensure that the PA-5450 is powered off and that the fans
are not still spinning.
Loosen the two screws on the fan drawer ejector handles
(one on either side). Place your thumbs on the bottom of the ejector
handles and push until the ejector handles swing outward.
Grip the top of the two ejector handles and pull them
outward until both handles stop. Gently pull the fan drawer out
of the appliance.
Using a No. 2 Phillips head screwdriver, unscrew both
Base Card (BC) retaining screws.
Grab both BC ejector handles and swing the handles outward
at the same time. Gently pull the BC outward from inside the appliance.
Support the BC with one hand while
pulling it out from the appliance.