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K Service Source
ADB Devices
Keyboards
Mouse Devices
K Service Source
Take Apart
ADB Devices
Take Apart Keyboard - 1
Keyboard
No preliminary steps are
required before you begin
this procedure.
Note: To remove and replace
keyswitches, refer to
"Keyswitch Replacement"
in Additional Procedures.
Caution: Review the ESD
precautions in Bulletins/
Safety.
Take Apart Keyboard - 2
1 Disconnect the keyboard
from the computer and
disconnect the ADB cable
and mouse from the
keyboard.
2 Remove the three screws
Bottom Case from the bottom of the
keyboard.
Top Case
Take Apart Keyboard - 3
3 Lift off the top case.
4 Lift out the keyboard
mechanism.
Top Case
Replacment Note:
Reassembly of the keyboard
is easier with the
components facing up
Keyboard rather than down.
Mechanism
Bottom Case
Take Apart Extended Keyboard - 4
Extended
Keyboard
No preliminary steps are
required before you begin
this procedure.
Note: To remove and
replace keyswitches, refer
to "Keyswitch
Replacement" in Additional
Procedures.
Caution: Review the ESD
precautions in Bulletins/
Safety.
Take Apart Extended Keyboard - 5
1 Disconnect the keyboard
from the computer and
disconnect the ADB cable
and mouse from the
keyboard.
2 Remove the four screws
Bottom Case from the bottom of the
keyboard.
Top Case
Take Apart Extended Keyboard - 6
3 Lift off the top case.
4 Lift out the keyboard
mechanism.
Top Case
Replacement Note:
Reassembly of the keyboard
is easier with the
components facing up
rather than down.
Keyboard
Mechanism
Bottom Case
Take Apart Keyboard II - 7
Keyboard II
No preliminary steps are
required before you begin
this procedure.
Note: If you are exchanging
the Apple Keyboard II, do not
remove the keyboard
mechanism; return the
entire keyboard to Apple
(without the cable).
Note: To remove and replace
keyswitches, refer to
"Keyswitch Replacement"
in Additional Procedures.
Take Apart Keyboard II - 8
Caution: Review the ESD
precautions in Bulletins/
Safety.
1 Disconnect the keyboard
from the computer and
Bottom Case disconnect the ADB cable
and mouse from the
keyboard.
2 Remove the three screws
from the bottom of the
keyboard.
Take Apart Keyboard II - 9
3 Grasp the bottom and top
of the case. Push in on
the tabs and lift off the
top cover.
Top Case
Bottom Case
Take Apart Keyboard II - 10
Note: There are two
versions of the Apple
Keyboard II, Version A and
Version B; the parts are not
interchangeable. To
differentiate Version A from
Version B, check the serial
numbers on the bottom case.
Version A serial numbers
start with the letter "M";
Version B serial numbers
start with the letter "S" or
"T."
This Take Apart topic
contains separate
procedures for each version
of the keyboard.
Take Apart Keyboard II - 11
Version A:
Ribbon Cable 1 Remove the three screws
that secure the keyboard
to the encoder board.
2 Disconnect the ribbon
cable from its connector.
3 Slide the keyboard out
Encoder Board from under the clips in
the bottom case and
Connector remove the keyboard.
4 Lift the encoder board
out of the bottom case.
Bottom Case
Clip
Take Apart Keyboard II - 12
Ribbon Cables Version B:
1 Remove the three screws
that secure the keyboard
to the encoder board.
Caps Lock Switch 2 Disconnect the two
Connector ribbon cables from their
connectors.
Encoder Board 3 Unplug the Caps Lock
switch connector from
the encoder board and
remove the keyboard.
4 Remove the six screws
with captive washers and
lift the encoder board out
Bottom Case Ribbon Cable
Connectors of the case bottom.
Clip
Take Apart Extended Keyboard II - 13
Extended
Keyboard II
No preliminary steps are
required before you begin
this procedure.
Note: If you are exchanging
an Apple Extended Keyboard
II, do not remove the
keyboard mechanism;
return the entire keyboard
to Apple (without the cable).
Note: To remove and replace
keyswitches, refer to
"Keyswitch Replacement"
in Additional Procedures.
Take Apart Extended Keyboard II - 14
Caution: Review the ESD
precautions in Bulletins/
Safety.
1 Disconnect the keyboard
from the computer and
disconnect the ADB cable
Bottom Case
and mouse from the
keyboard.
2 Remove the screw from
the bottom case.
3 Pull the rear edge of the
top case up and away
from the bottom case
Top Case
until the top case snaps
loose.
Take Apart Extended Keyboard II - 15
4 Pivot the rear of the top
case toward the front of
the keyboard and detach
the top case from the
Keyboard Assembly
bottom case.
ADB Connector 5 Lift the two ADB
connectors from their
slots.
6 Press back the two
plastic latches and lift
the keyboard assembly
ADB until it clears the
Slot
latches.
Bottom Case
Take Apart Extended Keyboard II - 16
7 Pull the keyboard
assembly toward the
back of the bottom case
to separate it from the
front foot.
Foot Return Spring
Replacement Note: Be sure
the five tabs on the front
edge of the keyboard
assembly are in the holders
in the bottom case.
Side Clip 8 Slide the foot return
spring out from the side
clips.
Take Apart Extended Keyboard II - 17
9 Spread the plastic clips
and pull the height
adjustment lever up and
out.
Take Apart Extended Keyboard II - 18
10 Spread the rear foot
plastic clips and lift out
the rear foot.
Replacement Note: The rear
foot should be between the
two side clips with the two
guides a third of the way in
from each side.
Take Apart AppleDesign Keyboard - 19
AppleDesign
Keyboard
No preliminary steps are
required before you begin
this procedure.
The AppleDesign Keyboard is
repaired through whole-
unit exchange. Refer to the
Service Source parts
database for part number
and ordering information.
Take Apart AppleDesign Keyboard - 20
The AppleDesign Keyboard
replaces the Apple Standard
Keyboard II. It is similar in
appearance to the Apple
Extended Keyboard II, but it
comes with the ADB cable
attached.
Take Apart Adjustable Keyboard - 21
Adjustable
Keyboard
Before you begin,
disconnect the keyboard.
Note: To remove and replace
keycaps, refer to
"Adjustable Keyboard
Keycaps" in Additional
Procedures.
Remove palm rests.
Take Apart Adjustable Keyboard - 22
Spacebar Assembly
Pry off the spacebar cap.
Spacebar Replacement Caution:
There are two stabilizer
bars at right angles to each
other and a loose spring in
the spacebar. Take care to
reseat both stabilizer bars
and the loose spring when
you replace the spacebar
Spring
cap.
Stabilizer
Bars
K Service Source
Additional Procedures
ADB Devices
Additional Procedures Keyswitch Replacement - 1
Keyswitch
Replacement
Before you begin, remove
the keyboard mechanism.
Caution: Review the ESD
precautions in Bulletins/
Safety.
Additional Procedures Keyswitch Replacement - 2
1 Using a screwdriver, lift
up on one of the four
sides of the keycap and
Keycap
remove the keycap.
2 Apply fresh solder to
Keyswitch the two keyswitch
connections to prepare
them for desoldering.
3 Desolder the contacts
using a solder sucker.
(If necessary, use
needlenose pliers to
wiggle the pins and free
the keyswitch.)
Additional Procedures Adjustable Key-board Keycaps - 3
Adjustable Key-
board Keycaps
Before you begin,
disconnect the keyboard.
Caution: Review the ESD
precautions in Bulletins/
Safety.
Note: The keycaps on the
Adjustable Keyboard are
removable.
Pry off the keycaps
Additional Procedures Adjustable Key-board Keycaps - 4
Replacement Note: The
Spacebar, Delete, Return,
Tab, Shift, Enter, and "0"
keys use stabilizer bars to
secure the keycaps.
To replace keycaps, snap
the stabilizer bar into the
back of the key. Slide the
Stabilizer Bar
Hook stabilizer bar hook into the
keycap support. Press to
Stabilizer Bar reseat the keycap.
Keycap
Support
K Service Source
Exploded View
ADB Devices
Exploded View 1
Extended
Keyboard
Keyboard
Extended
Keyboard II
Adjustable
Keyboard II Keyboard
AppleDesign
Keyboard