IBM Thinkpad T20 T21 T22 T23 Manual

For T22 series
2
3
Step Screw (quantity) Torque

2M2.5×14 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series85 

6
aa
5
4
Step Screw (quantity) Torque

4M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
When installing:
1. Install the hinge cover according to the step
5,
6
and then tighten the screw
4. In step
5, take care
not to damage the lens.
2. Make sure that both latches
aare firmly attached
and snap into place.
Removing and replacing a FRU
86ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

For T23 series
4
3
2
aa
Step Screw (quantity) Torque

2M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
When installing:
1. Install the hinge cover according to the step
3,
4
and then tighten the screw
2. In step
3, take care
not to damage the lens.
2. Make sure that both latches
aare firmly attached
and snap into place.
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series87 

1110 Keyboard bezel
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
For T20, T21 and T22 series
1
Step Screw (quantity) Torque

1M2.5×3.5 mm, nylon-coated (3) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
88ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

4
2
3
Step Screw (quantity) Torque

2M2.5×14 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)

3M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series89 

For T23 series
Note:Loosen the screw
1, but do not remove it.
2
1
3
Step Screw (quantity) Torque

3M2.5×11.5 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
90ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

4
Step Screw (quantity) Torque

4M2.5×3.5 mm, nylon-coated (3) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series91 

5
7
6
Step Screw (quantity) Torque

5M2.5×14 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)

6M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm) Removing and replacing a FRU
92ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

When installing, do as follows:
vMake sure that the
a-part is firmly attached as shown
in the figure.
vMake sure that all of the latches of the keyboard bezel

bare firmly attached.
a
b
b
b
b
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series93 

1120 Fan assembly
For T20, T21, T22 seriesFor 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
11
a
2
b
Notes:
1.
a-part is for T21, T22 series only. Other models do
not have this bracket.
2.
b-part is for T21 series and MT2647-3Cx, -3Ex,
-7Cx, -7Ex (T22 series) only. Other models do not have
this bracket.
Step...