IBM Thinkpad T20 T21 T22 T23 Manual
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3020 ThinkPad Dock top cover NoteThis section is only for the ThinkPad Dock (FRU no. 08N1546). The top cover and screw kit for ThinkPad Dock (FRU no. 12P4143) is not available for the ThinkPad Dock with extension plate (FRU no. 08N1537) . 1 (Rear view) Step Screw (quantity) Torque 1M2.5×4.8 mm (2) 0.392 Nm (4 kgfcm) (continued) Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series135
2 2 2 (Bottom view) Step Screw (quantity) Torque 2M2.5×4.8 mm (8) 0.392 Nm (4 kgfcm) (continued) Removing and replacing a FRU 136ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Make sure that the system lock keyAis set to the Unlock position. Release the front latches in step3, and then remove the top cover4. For step5, see the inside view, shown in the circle. 54 3A Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series137
When replacing the top cover, do the following: vMake sure that the springs are placed correctly. vMake sure that the device release lever is seated correctly. (continued) Removing and replacing a FRU 138ThinkPad T20, T21, T22, T23 (MT 2647/2648)
vMake sure that the release button works correctly. Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series139
Locations Front view 1System status indicators 2Power switch 3Battery, standby mode, and Ultrabay status indicators 4Bay latch 5Eject button 6Ultrabay 2000 device Note:The Ultrabay 2000 accepts storage devices, such as a DVD drive or a CD-ROM drive. 7TrackPoint pointing stick 8TrackPoint buttons 9ThinkPad button 10Volume and mute buttons 1 2 3 4 5 6 7 8 9 10 Locations 140ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Rear view 1Security keyhole 2TV-out connector 3Serial connector 4Parallel connector 5External-monitor connector 6Modem connector 7Ethernet connector 8Power jack 9Universal serial bus (USB) connector Note:T23 series have two USB connectors. 10External-input-device connector 11098765432 Locations ThinkPad T20, T21, T22 and T23 series141
Bottom view 1Built-in stereo speakers 2Battery pack 3Battery pack latches 4Docking connector 5Mini PCI card slot 6DIMM 7PC card slots 8PC card eject button 9Infrared port 10Stereo headphone jack 11Stereo line-in jack 12Microphone jack 13Hard-disk drive 14LCD latches 234 5 6 8 7 9 10 11 12 13 14 1 Locations 142ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Parts list T20, T21, T22 and T23 series model matrix The T20, T21, T22 and T23 series includes several models. The following table summarizes the characteristics of each model, to help you determine which FRU in the part list meets your need. Model CPU Bay deviceMini PCI adapterLCD HDD T20 (Memory: 128 MB) (*): Memory 64 MB (**): Memory 256 MB 2647-21x, 61x CMG 650CD- ROMModem 13.3-in. XGA6GB 2647-24x, 64x Combo (Intel) 2647-A1x—— — 2647-31x DVD- ROM (6x)Modem 14.1-in. XGA6GB 2647-2EY CD- ROMCombo (3Com)13.3-in. XGA12 GB 2647-32x, 72x (*)CMG 700Modem 2647-T1x (**) 14.1-in. XGA 2647-41x, 81x, 43xDVD- ROM (6x)Modem 2648-41x, 81x 2647-42x, 82x— 2648-42x, 82x 2647-44x, 84x Combo (Intel) 2648-44x, 84x 2647-46x, 86x Combo (3Com) 2648-46x, 86x 2647-45x FDD Ethernet 2647-B1x—— — 2647-L1x, L2x CMG 750CD- ROMModem 14.1-in. XGA20 GB 2647-52x, 92x DVD- ROM (6x) 2647-55x, 95x Combo (Intel) 2647-C1x—— — (continued) Parts list ThinkPad T20, T21, T22 and T23 series143
Model CPU Bay deviceMini PCI adapterLCD HDD T21 (Memory: 128 MB) 2647-27x, 67x CMG 750CD- ROMModem 13.3-in. XGA10 GB 2647-2Ax, 6Ax Combo (Xircom) 2647-4Bx, 8Bx Combo (3Com) 2647-47x, 49x, 87x, L7xCMG 800DVD- ROM (8x)Modem 14.1-in. XGA20 GB 2648-47x, 87x 2647-4Ax, 8Ax Combo (Xircom) 2648-4Ax, 8Ax Combo (Intel) 2647-4Bx, 8Bx Combo (3Com) 2648-4Bx, 8Bx 2647-57x, 97x CMG 850Modem 14.1-in. SXGA+32 GB 2647-5Ax, 9Ax Combo (Xircom) 2647-5Bx, 9Bx Combo (3Com) T22 (Memory: 128 MB) 2647-3Cx, 7Cx CMG 800CD- ROMModem 13.3-in. XGA10 GB 2647-3Ex, 7Ex, B2x, B3x, B4x, B5xCombo (Intel) 2647-4Cx,4Gx, 8Gx, 8Cx,M2x, M3x, LCxCMG 900DVD- ROM (8x)Modem 14.1-in. XGA20 GB 2648-4Cx, 8Cx 2647-4Ex, 8Ex, M4x, M5xCombo (Intel) 2648-4Ex, 8Ex 2647-4Gx, 8Gx Combo (3Com) 2648-4Gx, 8Gx 2647-T2x FDD Combo (Intel) 2647-5Cx, 9Cx CMG 1GDVD- ROM (8x)Modem 14.1-in. SXGA+32 GB 2647-5Ex, 9Ex, M6xCombo (Intel) (continued) Parts list 144ThinkPad T20, T21, T22, T23 (MT 2647/2648)