IBM Thinkpad T20 T21 T22 T23 Manual

2a
22a
2
2a
2a
Step Screw (quantity) Torque
For 13.3-in. XGA LCD LG (05K9636), 14.1-in. XGA LCD Hitachi
(05K9568), 14.1-in. SXGA+ LCD Hitachi (46L2493)

2M2×4 mm, nylon-coated (4) 0.245 Nm
(2.5 kgfcm)
For 14.1-in. XGA LCD LG (05K9567), SAMSUNG (05K9678),
Hyundai (05K9940), DBU (05K9888), 14.1-in. SXGA+ LCD LG
(46L2495)

2aM2×4 mm, nylon-coated (4) 0.245 Nm
(2.5 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series125 

6
5
4
7
5
3
(continued)
Removing and replacing a FRU
126ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

Cable routing:When installing the LCD, route the
connector cable as in the following figure:
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series127 

2050 Antenna assembly
NoteThis section is only for MT2647-xFx, xJx, xLx, xNx,
xSx. Other models do not have the antenna
assembly.
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“1120 Fan assembly”on page 94
v“2010 LCD assembly”on page 119
v“2020...

Strip off the insulation tapes
2securing the antenna
cables.
2
2
3
3
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series129 

Cable routing:Route the antenna cables as follows;
1. Hook the black antenna cable to projection (
1)onthe
right corner of the rear cover.
2. Route the black antenna cable to go through cable
guides
2and
3.
3. Hook the gray antenna cable to projection (
4)onthe
left corner of the rear cover.
4. Route the gray antenna cable to go through cable
guides
5.
5. Make sure that both of the cables are not twisted.
6. Stick insulation tapes
6,
7and
8.
6
8
7
2
5
3
41
Removing and replacing a FRU
130ThinkPad...

2060 Sub card
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“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“1140 PC Card slot assembly”on page 100
v“1150 Speaker”on page 103
v“1160 Hard-disk bay”on page...

4
a
When installing, do the following:
vAttach the I/O card spacer (
a) onto the new sub card
and make sure that the connector is firmly attached.
vMake sure that the eject lever is poped out
band then
install the sub card.
vTake care not to damage the switch on the sub card (A).
vMake sure that the guide of the card is firmly attached

cas shown in the figure.
A
bc
Removing and replacing a FRU
132ThinkPad T20, T21, T22, T23 (MT 2647/2648) 

3010 ThinkPad Dock PCI cover
Before replacing the PCI cover:
There are two types of ThinkPad Dock, as follows:
vThinkPad Dock: FRU no. 08N1546 (PCI cover: FRU no.
05K6246)
vThinkPad Dock with extension plate: FRU no. 08N1537
(PCI cover: FRU no. 08N7317)
Confirm the FRU no. of the ThinkPad Dock first and
choose the proper PCI cover FRU for the ThinkPad Dock
you are servicing.
Removing and replacing a FRU
ThinkPad T20, T21, T22 and T23 series133 

Note:The following illustration shows how to remove the
PCI cover of ThinkPad Dock (FRU no. 08N1546).
Do the same to remove the PCI cover of ThinkPad
Dock with extension plate (FRU no. 08N1537).
1
2
1
(Bottom view)
Removing and replacing a FRU
134ThinkPad T20, T21, T22, T23 (MT 2647/2648)