IBM 2647 Hardware Maintenance Manual - Page 119
System board, For T20, T21, T22 series
UPC - 087944636199
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Page 119 highlights
Removing and replacing a FRU 1180 System board 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 "1060 Ethernet daughter card" on page 70 (only for T23 series) 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 "1130 CPU" on page 98 v "1140 PC Card slot assembly" on page 100 v "1150 Speaker" on page 103 v "1160 Hard-disk bay" on page 105 v "1170 Ultrabay 2000 slot" on page 107 For T20, T21, T22 series 4 1 2 3 5 Step 4 Screw (quantity) M2.5 × 4.8 mm, nylon-coated (1) Torque 0.392 Nm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series 113