Hardware Maintenance Manual
Page 34
...removed. If you are known, do the following: 1. Enter the SVP. Notes v Screen blank mode is called suspend mode in Windows 95 and Windows NT. v The hard-disk drive motor stops. How to recover data from the hard-disk drive. Power on the "LCD off . 28 ThinkPad T20, T21, T22, T23 (MT 2647..., standby, and hibernation. The hard-disk drive can be made available to the servicer, IBM does not provide any services to reset the user HDPs or to remove the hard-disk password Attention: If User only mode is the letter of the hard-disk drive. The IBM BIOS Setup Utility menu appears. ...
...removed. If you are known, do the following: 1. Enter the SVP. Notes v Screen blank mode is called suspend mode in Windows 95 and Windows NT. v The hard-disk drive motor stops. How to recover data from the hard-disk drive. Power on the "LCD off . 28 ThinkPad T20, T21, T22, T23 (MT 2647..., standby, and hibernation. The hard-disk drive can be made available to the servicer, IBM does not provide any services to reset the user HDPs or to remove the hard-disk password Attention: If User only mode is the letter of the hard-disk drive. The IBM BIOS Setup Utility menu appears. ...
Hardware Maintenance Manual
Page 45
ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU... 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 ...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...
ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU... 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 ...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...
Hardware Maintenance Manual
Page 56
... select "Password" --> "IBM Security Chip" --> "Clear IBM Security Chip" to clear this error. 2. Remove the Ethernet More than one specified in IBM BIOS Setup Utility. 0230 Shadow RAM error-Shadow RAM fails at offset nnnn. 1. Reseat the hard-disk drive. 2. Load Setup Defaults ... RAM fails at offset nnnn. Security chip. 3. Security chip. 3. System board. 50 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Confirm the operation and try again. 01C9 1. Hard-disk drive. 4. System board. 0197 Invalid remote change requested The remote configuration for the security chip has...
... select "Password" --> "IBM Security Chip" --> "Clear IBM Security Chip" to clear this error. 2. Remove the Ethernet More than one specified in IBM BIOS Setup Utility. 0230 Shadow RAM error-Shadow RAM fails at offset nnnn. 1. Reseat the hard-disk drive. 2. Load Setup Defaults ... RAM fails at offset nnnn. Security chip. 3. Security chip. 3. System board. 50 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Confirm the operation and try again. 01C9 1. Hard-disk drive. 4. System board. 0197 Invalid remote change requested The remote configuration for the security chip has...
Hardware Maintenance Manual
Page 61
... following: 1. Non-IBM devices b. Devices attached to isolate the failing FRU (do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. PC Cards 4. If the problem remains, replace the following devices: a. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Power off the computer. 2. CD-ROM and diskette drive in loop...
... following: 1. Non-IBM devices b. Devices attached to isolate the failing FRU (do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. PC Cards 4. If the problem remains, replace the following devices: a. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Power off the computer. 2. CD-ROM and diskette drive in loop...
Hardware Maintenance Manual
Page 69
... security screw (1) Note: Use a 2.5-mm Allen wrench to physical shock. Before removing the drive, have the user make a backup copy of data. The hard-disk drive is sensitive to remove the security screw. (continued) ThinkPad T20, T21, T22 and T23 series 63 Removing and replacing a FRU 1030 Hard-disk drive Attention Do not drop or apply any shock to the cover.
... security screw (1) Note: Use a 2.5-mm Allen wrench to physical shock. Before removing the drive, have the user make a backup copy of data. The hard-disk drive is sensitive to remove the security screw. (continued) ThinkPad T20, T21, T22 and T23 series 63 Removing and replacing a FRU 1030 Hard-disk drive Attention Do not drop or apply any shock to the cover.
Hardware Maintenance Manual
Page 70
Removing and replacing a FRU When removing the hard-disk drive, open the LCD a little as shown in the figure. 2 3 4 3 When installing: Make sure that the HDD connector is firmly connected. 64 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU When removing the hard-disk drive, open the LCD a little as shown in the figure. 2 3 4 3 When installing: Make sure that the HDD connector is firmly connected. 64 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 80
After step 1 , go to 4 . Removing and replacing a FRU 1080 Keyboard 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 "1070 Ultrabay 2000 device" on page 73 For T20, T21 and T22 series 1 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (2) Torque 0.392 Nm (4 kgfcm) Note: T20, T21 and T22 series do not have the removal procedures 2 to step 5. (continued) 74 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
After step 1 , go to 4 . Removing and replacing a FRU 1080 Keyboard 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 "1070 Ultrabay 2000 device" on page 73 For T20, T21 and T22 series 1 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (2) Torque 0.392 Nm (4 kgfcm) Note: T20, T21 and T22 series do not have the removal procedures 2 to step 5. (continued) 74 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 88
In some models, the shape might be slightly different from model to model. Removing and replacing a FRU 1090 Keyboard CRU insulator 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 Note: The shape of the keyboard CRU insulator varies from the insulator in this figure. 1 82 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
In some models, the shape might be slightly different from model to model. Removing and replacing a FRU 1090 Keyboard CRU insulator 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 Note: The shape of the keyboard CRU insulator varies from the insulator in this figure. 1 82 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 89
1100 Hinge cover Removing and replacing a FRU 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 Note: Step 1 is common for all models. 1 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (3) (continued) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 83
1100 Hinge cover Removing and replacing a FRU 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 Note: Step 1 is common for all models. 1 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (3) (continued) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 83
Hardware Maintenance Manual
Page 94
Removing and replacing a FRU 1110 Keyboard bezel 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 "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 For T20, T21 and T22 series 1 Step 1 Screw (quantity) M2.5 × 3.5 mm, nylon-coated (3) (continued) Torque 0.392 Nm (4 kgfcm) 88 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU 1110 Keyboard bezel 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 "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 For T20, T21 and T22 series 1 Step 1 Screw (quantity) M2.5 × 3.5 mm, nylon-coated (3) (continued) Torque 0.392 Nm (4 kgfcm) 88 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 100
...M2 × 13.5 mm, nylon-coated (4) Torque 0.245 Nm (2.5 kgfcm) (continued) 94 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Other models do not have this bracket. 2. Other models do not have this bracket. b -part is for T21 series and MT2647-3Cx, -3Ex, -7Cx, -7Ex (T22 series) only. Removing and replacing a... FRU 1120 Fan assembly For T20, T21, T22 series 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 "1070 Ultrabay ...
...M2 × 13.5 mm, nylon-coated (4) Torque 0.245 Nm (2.5 kgfcm) (continued) 94 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Other models do not have this bracket. 2. Other models do not have this bracket. b -part is for T21 series and MT2647-3Cx, -3Ex, -7Cx, -7Ex (T22 series) only. Removing and replacing a... FRU 1120 Fan assembly For T20, T21, T22 series 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 "1070 Ultrabay ...
Hardware Maintenance Manual
Page 102
Removing and replacing a FRU For T23 series 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 "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 1 2 3 Step 1 Screw (quantity) M2 × 13.5 mm, nylon-coated (1) 2 M2.5 × 14 mm, nylon-coated (1) (continued) Torque 0.245 Nm (2.5 kgfcm) 0.392 Nm (4 kgfcm) 96 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU For T23 series 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 "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 1 2 3 Step 1 Screw (quantity) M2 × 13.5 mm, nylon-coated (1) 2 M2.5 × 14 mm, nylon-coated (1) (continued) Torque 0.245 Nm (2.5 kgfcm) 0.392 Nm (4 kgfcm) 96 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 104
...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 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 ..."1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 v "1120 Fan assembly" on page 94 For T20, T21 and T22 series Rotate the the head of the screw (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 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 ..."1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 v "1120 Fan assembly" on page 94 For T20, T21 and T22 series Rotate the the head of the screw (A) to...
Hardware Maintenance Manual
Page 106
Removing and replacing a FRU 1140 PC Card slot assembly For T20, T21, T22 series 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 1 2 Step 1 Screw (quantity) M2 × 13.5 mm, nylon-coated (4) (continued) Torque 0.245 Nm (2.5 kgfcm) 100 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU 1140 PC Card slot assembly For T20, T21, T22 series 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 1 2 Step 1 Screw (quantity) M2 × 13.5 mm, nylon-coated (4) (continued) Torque 0.245 Nm (2.5 kgfcm) 100 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
Page 108
Removing and replacing a FRU For T23 series 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 "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 1 1 2 4 3 Step 1 Screw (quantity) M2 × 13.5 mm, nylon-coated (4) Torque 0.245 Nm (2.5 kgfcm) 102 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU For T23 series 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 "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 1 1 2 4 3 Step 1 Screw (quantity) M2 × 13.5 mm, nylon-coated (4) Torque 0.245 Nm (2.5 kgfcm) 102 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
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1150 Speaker Removing and replacing a FRU 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 "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 1 2 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (2) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 103
1150 Speaker Removing and replacing a FRU 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 "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 1 2 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (2) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 103
Hardware Maintenance Manual
Page 111
... a FRU 1160 Hard-disk bay 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 "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" ... page 88 v "1150 Speaker" on page 103 Note: Step 3 and 4 are only for the case when Asset ID RF adapter has been attached into the hard-disk bay. 4 3 1 2 Step 1 Screw (quantity) M2.5 × 4.8 mm, nylon-coated (1) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 105
... a FRU 1160 Hard-disk bay 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 "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" ... page 88 v "1150 Speaker" on page 103 Note: Step 3 and 4 are only for the case when Asset ID RF adapter has been attached into the hard-disk bay. 4 3 1 2 Step 1 Screw (quantity) M2.5 × 4.8 mm, nylon-coated (1) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 105
Hardware Maintenance Manual
Page 113
... replacing a FRU 1170 Ultrabay 2000 slot 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 v ... For T20 series 1 2 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (1) Torque 0.392 Nm (4 kgfcm) Note: T20 series do not have the removal procedure 3 and 4 . When installing: Make sure that the FPC connector is firmly attached. (continued) ThinkPad T20, T21, T22 and T23 series 107
... replacing a FRU 1170 Ultrabay 2000 slot 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 "1070 Ultrabay 2000 device" on page 73 v "1080 Keyboard" on page 74 v "1090 Keyboard CRU insulator" on page 82 v ... For T20 series 1 2 Step 1 Screw (quantity) M2.5 × 14 mm, nylon-coated (1) Torque 0.392 Nm (4 kgfcm) Note: T20 series do not have the removal procedure 3 and 4 . When installing: Make sure that the FPC connector is firmly attached. (continued) ThinkPad T20, T21, T22 and T23 series 107
Hardware Maintenance Manual
Page 119
... 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 ...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
... 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 ...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
Hardware Maintenance Manual
Page 123
ThinkPad T20, T21, T22 and T23 series 117 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 v "1070 Ultrabay 2000... bezel" on page 88 v "1120 Fan assembly" on page 94 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 v "1180 System board" on page 113 When installing: Make sure that the connector...
ThinkPad T20, T21, T22 and T23 series 117 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 v "1070 Ultrabay 2000... bezel" on page 88 v "1120 Fan assembly" on page 94 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 v "1180 System board" on page 113 When installing: Make sure that the connector...