IBM Thinkpad T20 T21 T22 T23 Manual

When installing the fan assembly:
For T20
Remove the protective sheet from the thermal rubber
on the fan assembly.
For T21, T22
Apply the thermal grease (05K5751) on the
a-part of
the fan as shown in the following figure.
a
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series95 

For T23 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
v“1100 Hinge cover”on page 83
v“1110 Keyboard bezel”on page 88
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...

4
5
6
Step Screw (quantity) Torque

4M2.0×13.5 mm, nylon-coated (3) 0.245 Nm
(2.5 kgfcm)
When installing:Apply the thermal grease (05K5751) on
the
a-part of the fan as shown in the
following figure.
a
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series97 

1130 CPU
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“1120 Fan assembly”on page 94
For T20, T21 and T22 seriesRotate the the head of the screw (A) to the direction of the
arrow
ato release the lock and then remove the CPU.
2
1
b
a
c
A
When installing:
1. When attaching the CPU to the socket, do as shown...

For T23 series
Note:The shape of the CPU socket vary from model to
model. When removing or installing the CPU,
confirm the shape of the CPU socket and do either
steps
1,
2and
aor steps
1',
2and
a'.
Rotate the head of the screw to the direction of the arrow

1or
1'to release the lock and then remove the CPU.
a1
a1
2
When installing:Rotate the head of the screw to the
direction of the arrow
aor
a'to lock
the CPU.
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series99 

1140 PC Card slot 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
1
2
Step Screw (quantity) Torque

1M2×13.5 mm, nylon-coated (4) 0.245 Nm
(2.5 kgfcm)
(continued)
Removing and replacing a FRU
100ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

When installing the PC card slot assembly, do as shown in
the figure.
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series101 

For T23 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
v“1100 Hinge cover”on page 83
v“1110 Keyboard bezel”on page 88
11
2
4
3
Step Screw (quantity) Torque

1M2×13.5 mm, nylon-coated (4) 0.245 Nm
(2.5 kgfcm) Removing and replacing a FRU
102ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

1150 Speaker
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
1
2
Step Screw (quantity) Torque

1M2.5×14 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm) Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series103 

Before installing new speaker for T22 and T23 series:
Secure speaker RF bracket (
a) to the new speaker with
an adhesive tape inside of the bracket.
For T22 series
a
For T23 series
a
Removing and replacing a FRU
104ThinkPad T20, T21, T22, T23 (MT 2647/2648)