Apple Video System - Manual (Page 37)

Installing the card in a modular computer
If your system has a separate monitor, like this one, continue
with the steps below. If the monitor is built into your system,
go back to the previous section, “Installing the Card in a
Compact Computer.”
To install the video input card in a computer with a separate
monitor, follow these steps:
1 Press the Power key on the keyboard to shut down your
computer.
You can also choose Shut Down from the Special menu.
2 Unplug all the cables except the power cord from your
computer.
Leaving the power cord plugged in until you’re ready to
remove the logic board from the computer helps protect the
computer from electrostatic discharge damage.
Important To avoid generating static electricity that may
damage components, do not walk around the room until
you have finished installing the card and closed the
computer. Additionally, move the logic board as little as
possible while it is outside the computer.
31 Installing the Card and Software and Connecting Video Equipment