Hardware Maintenance Manual
Page 20
... it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in your pocket or behind your body. 14 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Performing a mechanical inspection - Working near you can occur only when there is near power supplies - Use...
... it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in your pocket or behind your body. 14 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Performing a mechanical inspection - Working near you can occur only when there is near power supplies - Use...
Hardware Maintenance Manual
Page 50
... is enabled. When this indicator is on, do not put the computer into standby mode or turn off the computer. 2 Num lock 3 Caps lock Note: Do not move the system while the Green drive in the Ultrabay 2000. Green: The numeric keypad on the keyboard is enabled. To enable ... read from or written to the hard-disk drive, the diskette drive, or the drive in use light is on. To enable or disable Caps Lock mode, press Fn + Caps Lock key. (continued) 44 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Sudden physical shock could cause drive errors.
... is enabled. When this indicator is on, do not put the computer into standby mode or turn off the computer. 2 Num lock 3 Caps lock Note: Do not move the system while the Green drive in the Ultrabay 2000. Green: The numeric keypad on the keyboard is enabled. To enable ... read from or written to the hard-disk drive, the diskette drive, or the drive in use light is on. To enable or disable Caps Lock mode, press Fn + Caps Lock key. (continued) 44 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Sudden physical shock could cause drive errors.
Hardware Maintenance Manual
Page 51
...when the indicator starts blinking orange, the computer beeps three times. ThinkPad T20, T21, T22 and T23 series 45 Indicator 4 Scroll lock 5 Power on 6 Battery 7 Standby status 8 Ultrabay status Product overview Meaning Green: Scroll Lock mode is resuming normal operation. The battery needs to be used...green: The computer is entering standby mode or hibernation mode, or is enabled. Arrow keys can use . To enable or disable Scroll Lock mode, press Fn + ScrLk key. Not all application programs support this function. Green: This indicator stays lighted whenever the computer is ...
...when the indicator starts blinking orange, the computer beeps three times. ThinkPad T20, T21, T22 and T23 series 45 Indicator 4 Scroll lock 5 Power on 6 Battery 7 Standby status 8 Ultrabay status Product overview Meaning Green: Scroll Lock mode is resuming normal operation. The battery needs to be used...green: The computer is entering standby mode or hibernation mode, or is enabled. Arrow keys can use . To enable or disable Scroll Lock mode, press Fn + ScrLk key. Not all application programs support this function. Green: This indicator stays lighted whenever the computer is ...
Hardware Maintenance Manual
Page 104
Rotate the head of the screw (A) to the direction of the arrow a to lock the CPU. 98 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Removing and replacing a FRU 1130 CPU For access, remove these FRUs, in the step c . 2. When attaching the CPU to the socket, do as shown ..." on page 94 For T20, T21 and T22 series Rotate the the head of the screw (A) to the direction of the arrow b to release the lock and then remove the CPU. 2 1 a b A c When installing: 1.
Rotate the head of the screw (A) to the direction of the arrow a to lock the CPU. 98 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Removing and replacing a FRU 1130 CPU For access, remove these FRUs, in the step c . 2. When attaching the CPU to the socket, do as shown ..." on page 94 For T20, T21 and T22 series Rotate the the head of the screw (A) to the direction of the arrow b to release the lock and then remove the CPU. 2 1 a b A c When installing: 1.
Hardware Maintenance Manual
Page 105
For T23 series Removing and replacing a FRU Note: The shape of the CPU socket vary from model to lock the CPU. Rotate the head of the screw to the direction of the arrow 1 or 1' to release the lock and then remove the CPU. 1 a 1' a' 2 When installing: Rotate the head of the screw to the direction of the CPU socket and do either steps 1 , 2 and a or steps 1' , 2 and a' . When removing or installing the CPU, confirm the shape of the arrow a or a' to model. ThinkPad T20, T21, T22 and T23 series 99
For T23 series Removing and replacing a FRU Note: The shape of the CPU socket vary from model to lock the CPU. Rotate the head of the screw to the direction of the arrow 1 or 1' to release the lock and then remove the CPU. 1 a 1' a' 2 When installing: Rotate the head of the screw to the direction of the CPU socket and do either steps 1 , 2 and a or steps 1' , 2 and a' . When removing or installing the CPU, confirm the shape of the arrow a or a' to model. ThinkPad T20, T21, T22 and T23 series 99
Hardware Maintenance Manual
Page 143
For step 5 , see the inside view, shown in step 3 , and then remove the top cover 4 . Release the front latches in the circle. 4 5 3 A ThinkPad T20, T21, T22 and T23 series 137 Removing and replacing a FRU Make sure that the system lock key A is set to the Unlock position.
For step 5 , see the inside view, shown in step 3 , and then remove the top cover 4 . Release the front latches in the circle. 4 5 3 A ThinkPad T20, T21, T22 and T23 series 137 Removing and replacing a FRU Make sure that the system lock key A is set to the Unlock position.
Hardware Maintenance Manual
Page 173
... M2.5 x 14 mm, bind head (15) v M2.5 x 11.5 mm, flat head (5) v M2.5 x 4.8 mm, flat head (20) v M2.5 x 3.5 mm, flat head (10) v M2.0 x 13.5 mm, pan head (15) v M2..0 x 4.0 mm, small head (10) v Hex stud D-sub (10) v Coin screw (1) v Security screw (1) v Blank cap, enhanced port (5) v Screw caps, rear (5)... for base cover v Eject lever v Spring lever v Puller bay v Label danger, backup battery v Rubber foot, low height (2) v Rubber foot, high (1) v Sponge v Knob, battery lock v Latch, battery lock v Screw caps v Screw caps, rear 26P9285 (continued) ThinkPad T20, T21, T22 and T23 series 167
... M2.5 x 14 mm, bind head (15) v M2.5 x 11.5 mm, flat head (5) v M2.5 x 4.8 mm, flat head (20) v M2.5 x 3.5 mm, flat head (10) v M2.0 x 13.5 mm, pan head (15) v M2..0 x 4.0 mm, small head (10) v Hex stud D-sub (10) v Coin screw (1) v Security screw (1) v Blank cap, enhanced port (5) v Screw caps, rear (5)... for base cover v Eject lever v Spring lever v Puller bay v Label danger, backup battery v Rubber foot, low height (2) v Rubber foot, high (1) v Sponge v Knob, battery lock v Latch, battery lock v Screw caps v Screw caps, rear 26P9285 (continued) ThinkPad T20, T21, T22 and T23 series 167