IBM Thinkpad T20 T21 T22 T23 Manual

1160 Hard-disk bay
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1020 Backup battery”on page 61
v“1030 Hard-disk drive”on page 63
v“1070 Ultrabay 2000 device”on page 73
v“1080 Keyboard”on page 74
v“1090 Keyboard CRU insulator”on page 82
v“1100 Hinge cover”on page 83
v“1110 Keyboard bezel”on page 88
v“1150 Speaker”on page 103
Note:Step
3and
4are only for the case when Asset
ID RF adapter has been attached into the hard-disk
bay.
4
3
1
2
Step Screw (quantity) Torque...

When installing:Make sure the followings:
v
a-parts of the insulation do not come off.
v
b-part (
b's are only for T23 series) is not turned
over.
vHoles in the guide rail and in the aluminium sheet are
aligned, and the aluminium sheet does not protrude in
the
c-parts. The protruding parts of the sheet can
cause electrical short.
a
c
ab
b
b
a
Removing and replacing a FRU
106ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

1170 Ultrabay 2000 slot
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1020 Backup battery”on page 61
v“1030 Hard-disk drive”on page 63
v“1070 Ultrabay 2000 device”on page 73
v“1080 Keyboard”on page 74
v“1090 Keyboard CRU insulator”on page 82
v“1100 Hinge cover”on page 83
v“1110 Keyboard bezel”on page 88
For T20 series
1
2
Step Screw (quantity) Torque

1M2.5×14 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
Note:T20 series do not have the removal procedure
3
and
4. After step
2,...

For T21 and T22 series
1
2
Note:T21 series do not have the removal procedure
3
and
4. After step
2, go to step
5.
When installing:Make sure that the FPC connector is
firmly attached.
(continued)
Removing and replacing a FRU
108ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

For T23 series
3
21
Step Screw (quantity) Torque

1M2×13.5 mm, nylon-coated (1) 0.245 Nm
(2.5 kgfcm)

2M2.5×14 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series109 

4
Note:The models with 13.3-in. XGA LCD in T20 series
and in T21 series do not have FPC bracket (
5).
For those models, skip step
5.
5
a
When installing:Make sure that the FPC bracket is firmly
attached as shown in the figure
a.
(continued)
Removing and replacing a FRU
11 0ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

Note:Step
6to step
9are common for T20, T21, T22
and T23 series.
6
Step Screw (quantity) Torque

6M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
9
87
Step Screw (quantity) Torque

7M2×13.5 mm, nylon-coated (2) 0.245 Nm
(2.5 kgfcm)

8M2.5×4.8 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm) Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series111 

When installing:Make sure that the guide of the slot is
firmly attached
1and if the eject lever
has been poped out, push it back in the
direction of arrow
2until it snaps, and
then push the upper-right corner of the
slot
3to fix it firmly.
1
2
3
Removing and replacing a FRU
11 2ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

1180 System board
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1020 Backup battery”on page 61
v“1030 Hard-disk drive”on page 63
v“1040 DIMM”on page 65
v“1050 Mini PCI adapter”on page 66
v“1060 Ethernet daughter card”on page 70 (only for T23
series)
v“1070 Ultrabay 2000 device”on page 73
v“1080 Keyboard”on page 74
v“1090 Keyboard CRU insulator”on page 82
v“1100 Hinge cover”on page 83
v“1110 Keyboard bezel”on page 88
v“1120 Fan assembly”on page 94
v“1130 CPU”on page 98
v“1140...

When installing:Make sure that all of the guides are
firmly attached
1and you have
fastened the connector firmly to the
underside of the system board
2.
2
1
1
1
Removing and replacing a FRU
11 4ThinkPad T20, T21, T22, T23 (MT 2647/2648)