IBM Thinkpad A20mp A21mp A22mp Manual

							1150 Diskette drive
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1050 Hard-disk drive or RF ID adapter”on page 67
v“1060 Ultrabay 2000 device”on page 69
v“1070 Keyboard”on page 71
v“1080 Keyboard CRU insulator”on page 74
v“1090 Hinge cover and clear sheet icon”on page 75
v“1100 Keyboard bezel and speaker”on page 76
v“1110 Microphone and speaker cable”on page 78
Note:Step
1aare for the MT2628-Fxx, Gxx, Pxx, Qxx,
Rxx, Sxx, Txx, Xxx, MT2633-Gxx, Txx, and
MT2629. Other model do not have the screws
1a.
Step Screw (quantity) Torque

1aM2.5×4.8 mm, nylon-coated (3) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad A20m/p, A21m/p and A22m/p85 
						

							Notes:
1. The heatpipeAand the screw
1aare for the
MT2628-Fxx, Gxx, Pxx, Qxx, Rxx, Sxx, Txx, Xxx,
MT2633-Gxx, Txx, and MT2629. Other models do not
have them.
2. Step
4(diskette drive spacer) is only for MT2629.
Other models do not have the spacer. Remove it
gently; it will be reused when installing new diskette
drive.
Step Screw (quantity) Torque

1aM2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)

1M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)

2M2.5×15 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm)
When installing:Do not press the
a-part of the diskette
drive to avoid the damage.
Removing and replacing a FRU
86ThinkPad A20m/p, A21m/p, A22m/p 
						

							1160 Upper shield
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1050 Hard-disk drive or RF ID adapter”on page 67
v“1060 Ultrabay 2000 device”on page 69
v“1070 Keyboard”on page 71
v“1080 Keyboard CRU insulator”on page 74
v“1090 Hinge cover and clear sheet icon”on page 75
v“1100 Keyboard bezel and speaker”on page 76
v“1110 Microphone and speaker cable”on page 78
v“1120 Sub card”on page 80
v“1130 PC Card slot assembly”on page 82
v“1140 Fan assembly”on page 83
v“1150 Diskette drive”on page 85
Step Screw (quantity) Torque

1M2.5×15 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm)

2M2.5×4.8 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm) Removing and replacing a FRU
ThinkPad A20m/p, A21m/p and A22m/p87 
						

							1170 TV card
NoteThis section is only for MT2628-Fxx,-Gxx, -Sxx,-Txx,
MT2633-Gxx,-Txx, and MT2629. Other models do
not have the TV card.
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1050 Hard-disk drive or RF ID adapter”on page 67
v“1060 Ultrabay 2000 device”on page 69
v“1070 Keyboard”on page 71
v“1080 Keyboard CRU insulator”on page 74
v“1090 Hinge cover and clear sheet icon”on page 75
v“1100 Keyboard bezel and speaker”on page 76
v“1110 Microphone and speaker cable”on page 78
v“1120 Sub card”on page 80
v“1130 PC Card slot assembly”on page 82
v“1140 Fan assembly”on page 83
v“1150 Diskette drive”on page 85
v“1160 Upper shield”on page 87
Cable routing:When replacing the modem cable, see the
figure for the cable routing.
Removing and replacing a FRU
88ThinkPad A20m/p, A21m/p, A22m/p 
						

							1180 CPU socket and CPU
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1020 DIMM”on page 61
v“1050 Hard-disk drive or RF ID adapter”on page 67
v“1060 Ultrabay 2000 device”on page 69
v“1070 Keyboard”on page 71
v“1080 Keyboard CRU insulator”on page 74
v“1090 Hinge cover and clear sheet icon”on page 75
v“1100 Keyboard bezel and speaker”on page 76
v“1110 Microphone and speaker cable”on page 78
v“1120 Sub card”on page 80
v“1130 PC Card slot assembly”on page 82
v“1140 Fan assembly”on page 83
v“1150 Diskette drive”on page 85
v“1160 Upper shield”on page 87
Note:MT2628-Exx, -Dxx do not have the CPU removal
procedure.
Rotate the screw head (A) 180°to the direction of the
arrow
ato release the lock and then remove the CPU.
Step Screw (quantity) Torque

1M2.5×15 mm, nylon-coated (3) 0.392 Nm
(4 kgfcm) Removing and replacing a FRU
ThinkPad A20m/p, A21m/p and A22m/p89 
						

							When installing the CPU, do as shown in the figure.
vRotate the screw head (A) 180°to the direction of the
arrow
bto lock the CPU.
vWhen attach the CPU to the socket, do as shown in the
step
c.
Removing and replacing a FRU
90ThinkPad A20m/p, A21m/p, A22m/p 
						

							1190 System board and RJ45/11
connector assembly
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1020 DIMM”on page 61
v“1030 Mini PCI adapter”on page 63
v“1040 Backup battery”on page 66
v“1050 Hard-disk drive or RF ID adapter”on page 67
v“1060 Ultrabay 2000 device”on page 69
v“1070 Keyboard”on page 71
v“1080 Keyboard CRU insulator”on page 74
v“1090 Hinge cover and clear sheet icon”on page 75
v“1100 Keyboard bezel and speaker”on page 76
v“1110 Microphone and speaker cable”on page 78
v“1120 Sub card”on page 80
v“1130 PC Card slot assembly”on page 82
v“1140 Fan assembly”on page 83
v“1150 Diskette drive”on page 85
v“1160 Upper shield”on page 87
v“1170 TV card”on page 88
v“1180 CPU socket and CPU”on page 89
Step Screw (quantity) Torque

1M2.5×4.8 mm, nylon-coated (2) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad A20m/p, A21m/p and A22m/p91 
						

							Note:Step
4(thermal rubbers) are only for
MT2628-Pxx, -Qxx, -Rxx, -Sxx, -Txx, -Xxx, and
MT2629-Hxx, -Uxx. When replacing the system
board for those models, remove the thermal rubbers
from the removed system board and put them onto
the new system board. And then install the new
system board to the base cover. (For the location of
the therma rubbers, see“Thermal rubbers location”
on page 93.)
For A20m/p and A21m/p series
For A22m/p series
Note:When installing the new RJ45/11 connector
assembly onto the system board, make sure that
the connector is firmly attached.
Removing and replacing a FRU
92ThinkPad A20m/p, A21m/p, A22m/p 
						

							Thermal rubbers location
Before installing the new system board, make sure that the
thermal rubbers are placed on the system board as shown
in the following figures.
For A21m/p series
Upper side of the system board
Bottom side of the system board
For A22m/p series
Upper side of the system board
Removing and replacing a FRU
ThinkPad A20m/p, A21m/p and A22m/p93 
						

							2010 LCD assembly
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 60
v“1050 Hard-disk drive or RF ID adapter”on page 67
v“1060 Ultrabay 2000 device”on page 69
v“1070 Keyboard”on page 71
v“1080 Keyboard CRU insulator”on page 74
v“1090 Hinge cover and clear sheet icon”on page 75
v“1100 Keyboard bezel and speaker”on page 76
Note:Screws
1aare for MT2628-Fxx, -Gxx, -Pxx, -Qxx,
-Rxx, -Sxx, -Txx, -Xxx, MT2633-Gxx, -Txx and
MT2629. Other models do not have them.
Step Screw (quantity) Torque

1aM2.5×4.8 mm, nylon-coated (3) 0.392 Nm
(4 kgfcm)

1M2.5×4.8 mm, nylon-coated (4) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
94ThinkPad A20m/p, A21m/p, A22m/p