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2.4
COMPLETING INSTALLATION
North Star HSIO-4
Turn off the power switch on the
back of the HORIZON, and unplug the
power cord from the wall outlet
before you remove the HORIZON
cover. The high voltages used in
the computer can be dangerous
unless you observe this precaution.
Do NOT remove the cover from the
HORIZON until the power is off, the
fan has stopped, and the red
indicator light on the front panel
has fully dimmed.
Remove the four screws that hold the HORIZON
cover in place. Lift off the cover.
Hold the HSIO-4 board in one hand and touch
the metal chassis of the HORIZON with the
other hand. This will eliminate any difference
in static potential between the HSIO-4 board
and the computer.
WARNING
Figure 2-4
7
User/Technical Manual
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