Lenovo 9935B3U User Manual - Page 44

Replacing, keyboard

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Replacing the keyboard Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to replace the keyboard. To replace the keyboard: 1. Remove any media from the drives, shut down your operating system, and turn off all attached devices and the computer. 2. Unplug all power cords from electrical outlets. 3. Locate the keyboard connector. Note: Your keyboard might be connected to a standard keyboard connector 1 or a USB connector 2 . Depending on where your keyboard is connected, see "Locating connectors on the rear of your computer" on page 8 or "Locating connectors on the front of your computer" on page 7. Figure 35. Keyboard connectors 4. Disconnect the failing keyboard cable from the computer. 5. Connect a new keyboard to the appropriate connector on the computer. 6. Go to "Completing the parts replacement" on page 37. 36 User Guide

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Replacing
the
keyboard
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
came
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide
,
go
to:
This
section
provides
instructions
on
how
to
replace
the
keyboard.
To
replace
the
keyboard:
1.
Remove
any
media
from
the
drives,
shut
down
your
operating
system,
and
turn
off
all
attached
devices
and
the
computer.
2.
Unplug
all
power
cords
from
electrical
outlets.
3.
Locate
the
keyboard
connector.
Note:
Your
keyboard
might
be
connected
to
a
standard
keyboard
connector
±1²
or
a
USB
connector
±2²
.
Depending
on
where
your
keyboard
is
connected,
see
“Locating
connectors
on
the
rear
of
your
computer”
on
page
8
or
“Locating
connectors
on
the
front
of
your
computer”
on
page
7.
4.
Disconnect
the
failing
keyboard
cable
from
the
computer.
5.
Connect
a
new
keyboard
to
the
appropriate
connector
on
the
computer.
6.
Go
to
“Completing
the
parts
replacement”
on
page
37.
Figure
35.
Keyboard
connectors
36
User
Guide