Epson Progression U12 - Manual (Page 59)

Special Precautions
As you perform the procedures described in this chapter and in
Chapters 3 and 4, observe the following precautions to avoid
damaging your equipment or injuring yourself:
Do not attempt a procedure if you have any reservations
about performing it; ask your dealer for assistance.
Always turn off
the
computer, disconnect all cables, and
wait at least 30 seconds before you remove the cover. First
disconnect the power cord from the electrical outlet and
from the computer’s back panel. Then disconnect all
peripheral devices from the computer.
Every time you remove the cover, ground yourself by
touching
the
metal inside of the computer’s back panel
before you touch any components inside. If you are not
properly grounded, you could conduct static electricity and
damage your equipment.
When disconnecting a cable from
any
internal device (such
as a disk drive), avoid pulling on the cable; grasp the plastic
connector to remove it from the socket.
When plugging a connector or a component into a socket,
be sure to position it correctly. Carefully align any
connector pins with
the corresponding
holes in the socket
before you push in the connector. Otherwise, you can
severely damage
the
equipment.
If you install an option, keep its original packaging in case
you need to remove or transport it later.
Always replace
the
computer’s cover before you turn on the
power, or the computer may
overheat.
2-2 Accessing Internal Components