IBM manual ThinkPad T20, T21, T22 and T23 series

ThinkPad T20, T21, T22 and T23 series

Product overview	.	41
Specifications	.	43
Status indicators	.	45
FRU Tests	.	47
Fn key combinations	.	48
Symptom-to-FRU index	.	49
Numeric error codes	.	49
Error messages	.	52
Beep symptoms	.	53
No-beep symptoms	.	53
LCD-related symptoms	.	54
Intermittent problems	.	55
Undetermined problems	.	55
FRU replacement notices	.	56
Screw notices	.	56
Retaining serial numbers	.	57
Restoring the serial number of the system unit		57
Retaining the UUID	.	57
Removing and replacing a FRU	.	59
1010 Battery pack	.	60
1020 Backup battery	.	61
1030 Hard-disk drive	.	63
1040 DIMM	.	65
1050 Mini PCI adapter	.	66
For T20, T21 and T22 series	.	66
For T23 series	.	68
1060 Ethernet daughter card	.	71
1070 Ultrabay 2000 device	.	73
1080 Keyboard	.	74
For T20, T21 and T22 series	.	74
For T23 series	.	75
1090 Keyboard CRU insulator	.	82
1100 Hinge cover	.	83
For T20 and T21 series	.	84
For T22 series	.	86
For T23 series	.	87
1110 Keyboard bezel	.	88
For T20, T21 and T22 series	.	89
For T23 series	.	92
1120 Fan assembly	.	94
For T20, T21, T22 series	.	94
For T23 series	.	97
1130 CPU	.	98
For T20, T21 and T22 series	.	98
For T23 series	.	99
1140 PC Card slot assembly	.	100
For T20, T21, T22 series	.	100
For T23 series	.	102
1150 Speaker	.	103
© Copyright IBM Corp. 2002		39