Lenovo J105 Hardware Maintenance Manual - Page 88

connectors, Removing, covers

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Rear connectors The following illustration shows the locations of the connectors on the rear of the computer. 1 Power connector 2 Voltage selection switch 3 Mouse connector 4 Keyboard connector 5 Serial connector 6 Parallel connector 7 VGA monitor connector 8 USB connectors 9 Ethernet connector 10 USB connectors 11 Microphone connector 12 Audio line out connector 13 Audio line in connector 14 AGP or PCI Express x16 graphics adapter connector (some models) 15 PCI adapter slots Removing the covers Important Read Chapter 2, "Safety information," on page 3 and "Handling electrostatic discharge-sensitive devices" on page 6 before opening the cover. Some FRU replacements require the removal of only the left-side cover. Others require removal of both the left-side and the right-side covers. 1. Shut down the operating system, remove any media (DVDs, CDs, or tapes) from the drives, and turn off all attached devices. 2. Unplug all power cords from electrical outlets. 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. 82 Lenovo 3000 J Series

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Rear
connectors
The
following
illustration
shows
the
locations
of
the
connectors
on
the
rear
of
the
computer.
±1²
Power
connector
±9²
Ethernet
connector
±2²
Voltage
selection
switch
±10²
USB
connectors
±3²
Mouse
connector
±11²
Microphone
connector
±4²
Keyboard
connector
±12²
Audio
line
out
connector
±5²
Serial
connector
±13²
Audio
line
in
connector
±6²
Parallel
connector
±14²
AGP
or
PCI
Express
x16
graphics
adapter
connector
(some
models)
±7²
VGA
monitor
connector
±15²
PCI
adapter
slots
±8²
USB
connectors
Removing
the
covers
Important
Read
Chapter
2,
“Safety
information,”
on
page
3
and
“Handling
electrostatic
discharge-sensitive
devices”
on
page
6
before
opening
the
cover.
Some
FRU
replacements
require
the
removal
of
only
the
left-side
cover.
Others
require
removal
of
both
the
left-side
and
the
right-side
covers.
1.
Shut
down
the
operating
system,
remove
any
media
(DVDs,
CDs,
or
tapes)
from
the
drives,
and
turn
off
all
attached
devices.
2.
Unplug
all
power
cords
from
electrical
outlets.
3.
Disconnect
all
cables
attached
to
the
computer.
This
includes
power
cords,
input/output
(I/O)
cables,
and
any
other
cables
that
are
connected
to
the
computer.
82
Lenovo
3000
J
Series