IBM Thinkpad T20 T21 T22 T23 Manual

1040 DIMM
For access, remove this FRU:
v“1010 Battery pack”on page 60
Note:Loosen the screw
1, but do not remove it.
2
1
3
3
4
When installing:With the notched end of the DIMM
toward the socket, insert the DIMM into
the socket, and then press it firmly. Pivot
the DIMM until it snaps into place. Make
sure that the card is firmly fixed in the
slot and does not move easily.
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series65 

1050 Mini PCI adapter
For access, remove this FRU:
v“1010 Battery pack”on page 60
For T20, T21 and T22 series
Note:Loosen the screw
1, but do not remove it.
2
1
(continued)
Removing and replacing a FRU
66ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

Note:The following illustration shows the combo card.
Connector(A)is for the LAN feature and(B)is for
the modem feature. Disconnect either(A)or(B)in
step
6. This slot also supports a Mini PCI modem
card or Mini PCI network card.
4
3
4
(A)(B)
6
5
(A)(B)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series67 

When installing:Make sure not to pinch the connector
cable when re-installing the Mini PCI
adapter.
For T23 series
Note:Loosen the screw
1, but do not remove it.
2
1
(continued)
Removing and replacing a FRU
68ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

In step
3aand
3b, pull the tab of the each antenna
cables to unplug the cables.
4
3a
4
3b
When installing:Plug the gray antenna cable
3ainto
jackJ1(MAIN), and the black antenna
cable
3binto jackJ2(AUX).
5
6
When installing:With the notched end of the card toward
the socket, insert the card into the
socket, and then press it firmly. Pivot the
card until it snaps into place. Make sure
that the card is firmly fixed in the slot
and does not move easily.
Removing and replacing a FRU
ThinkPad T20, T21, T22...

1060 Ethernet daughter card
NoteThis section is only for the following models of T23
series;
vAll models of MT2647 excepting xQx, L4x
vAll models of MT2648
Other models do not have the Ethernet daughter
card (EDC).
For access, remove this FRU:
v“1010 Battery pack”on page 60
Note:Loosen the screw
1, but do not remove it.
2
1
(continued)
Removing and replacing a FRU
70ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

33
Step Screw (quantity) Torque

3M2.5×11.5 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series71 

4
5
6
When installing:Make sure that both of the connectors

4and
6are firmly attached.
Removing and replacing a FRU
72ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

1070 Ultrabay 2000 device
Any of several devices can be inserted into the Ultrabay
2000. The procedure for installing and removing is the
same for every device.
Ultrabay 2000 also supports Ultrabay Plus device, such as
Ultrabay Plus carrier.
Note:When you release the switch in step
1the lever
pops out. Pull the lever a little in step
2to release
the device from the bay.
3
1
2
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series73 

1080 Keyboard
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
For T20, T21 and T22 series
1
Step Screw (quantity) Torque

1M2.5×14 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm)
Note:T20, T21 and T22 series do not have the removal
procedures
2to
4. After step
1, go to step

5.
(continued)
Removing and replacing a FRU
74ThinkPad T20, T21, T22, T23 (MT 2647/2648)