IBM MT 8747, MT 8749, MT 9440, MT 9441, MT 9442, MT 9443, MT 9448 Related service information , 26

Also, the computer goes into hibernation mode automatically in either of the

following conditions:

If a “hibernation time” has been set on the timer, and if the user does not do

any operation with the keyboard, the TrackPoint, the hard disk drive, the

parallel connector, or the diskette drive within that time.

v If the timer conditions are satisfied in suspend mode.

When the power is turned on, the computer returns from hibernation mode and

resumes operation. The hibernation file in the boot record on the hard disk drive is

read, and system status is restored from the hard disk drive.

Related service information

26 MT 8747, 8749, 9440, 9441, 9442, 9443, and 9448

Contents

Main ThinkPad Z61t Hardware Maintenance Manual Page Page Page Contents About this manual . . . . . . . . . .1 Introduction . . . . . . . . . . . . .3 Copyright Lenovo 2006, 2007 General descriptions . . . . . . . . .19 ThinkPad Z61t . . . . . . . . . . .33 iv About this manual Copyright Lenovo 2006, 2007 2 Introduction Important service information Copyright Lenovo 2006, 2007 Strategy for replacing FRUs Strategy for replacing a hard disk drive 4 Important notice for replacing a system board How to use error messages Strategy for replacing FRUs for CTO, CMV, and GA V Product definition FRU identification for CTO, CMV, and GA V products Introduction 5 Using PEW Using eSupport Using the HMM Important information about replacing RoHS compliant FRUs Current or original part Replacement FRU Current or original part Important service information Diskette compatibility matrix Introduction 7 drive Diskette capacity Safety notices: multilingual translations Safety notices 8 Safety notice 3 Introduction 9 Safety notice 4 Safety notices 10 Safety notice 5 Safety notice 6 Introduction Safety notice 7 Safety notice 8 Safety notices 12 Safety information Introduction 13 Observe the following rules when working on electrical equipment. General safety Electrical safety Safety information 14 Safety inspection guide Introduction 15 Handling devices that are sensitive to electrostatic discharge 16 Grounding requirements Safety information Laser compliance statement Introduction 17 CAUTION: Laser compliance statement Laser compliance statement 18 General descriptions Copyright Lenovo 2006, 2007 Read this first Before you go to the checkout guide, be sure to read this section. What to do first Read this first 20 Related service information General descriptions 21 Service Web site Restoring the factory contents by using Product Recovery discs Passwords 22 Related service information General descriptions 23 How to remove the power-on password How to remove the hard-disk password Power management 24 Screen blank mode Related service information Standby mode General descriptions 25 Hibernation mode Related service information 26 Checkout guide General descriptions 27 Testing the computer Creating the PC-Doctor diagnostics diskette WirelessLAN Checkout guide 28 The options on the test menu are as follows: General descriptions 29 Detecting system information with PC-Doctor PC-Doctor can detect the following system information: 30 Hardware Info Utility Checking the ac adapter General descriptions 31 2 1 3 (20V) Checking the backup battery 32 Wire Voltage (V dc) Red +2.5 to +3.2 Black Ground Checkout guide ThinkPad Z61t Copyright Lenovo 2006, 2007 Product overview 34 (continued) Specifications The following table lists the specifications of the ThinkPad Z61t: v Gigabit Ethernet Feature Description PCI Express Mini card for wireless LAN v Windows XP Professional v Windows XP Home Edition v Windows Vista Buisiness (32 bit) 36 Status indicators The system status indicators show the status of the computer, as follows: ThinkPad Z61t 37 Indicator Meaning 1 Wireless LAN R Product overview 38 Indicator Meaning 9 AC power Green: The computer is connected to the ac power supply. 10 Standby status ThinkPad Z61t 39 FRU tests The following table shows the test for each FRU. (continued) Product overview 40 Fn key combinations ThinkPad Z61t 41 (continued) Product overview 42 ThinkPad Z61t 43 Symptom-to-FRU index 44 System board. Numeric error codes 0175 Bad CRC1, stop POST taskThe EEPROM checksum is not correct. Page Symptom-to-FRU index 46 ThinkPad Z61t 47 Error messages 48 Device Error. 1. The device you want to boot from. Symptom-to-FRU index Beep symptoms One beep and a blank, unreadable, or flashing LCD. ThinkPad Z61t 49 System board (security chip) Five short beeps and a blank screen. System board No-beep symptoms Symptom-to-FRU index 50 Intermittent problems ThinkPad Z61t 51 Undetermined problems FRU replacement notices 52 (Cross-section) Screw notices 90degrees more Restoring the serial number of the system unit ThinkPad Z61t 53 Retaining the UUID Reading or writing the ECA information FRU replacement notices 54 Removing and replacing a FRU ThinkPad Z61t 55 1010 Battery pack 56 1 2 Removing and replacing a FRU 1020 Ultrabay Slim device ThinkPad Z61t 57 For access, remove this FRU: 58 (continued) Removing and replacing a FRU When installing: Make sure that the hard disk drive connector is attached firmly. (continued) ThinkPad Z61t 59 60 1040 Palm rest or palm rest with fingerprint reader For access, remove this FRU in order: ThinkPad Z61t 61 (continued) (4) Removing and replacing a FRU 62 2. Attach the palm rest as shown in this figure. ThinkPad Z61t 63 (continued) Removing and replacing a FRU 64 1050 DIMM For access, remove these FRUs in order: v 1010 Battery pack on page 56 ThinkPad Z61t 65 1060 Keyboard For access, remove this FRU: v 1010 Battery pack on page 56 66 (1) 1 ThinkPad Z61t 67 1070 Modem daughter card (MDC-1.5) 68 1 M2 3 mm, flat-head, nylon-coated (2) Black 0.196 Nm Removing and replacing a FRU Turn the card over 3 , and detach the modem connector 4 . ThinkPad Z61t 69 1080 PCI Express Mini card for wireless WAN 70 (continued) Removing and replacing a FRU ThinkPad Z61t 71 1090 PCI Express Mini card for wireless LAN 72 (continued) Removing and replacing a FRU ThinkPad Z61t 73 1100 PCI Express Mini card for 802.11 a/b/g/n wireless LAN 74 (continued) 1c Removing and replacing a FRU ThinkPad Z61t 75 1110 Backup battery 76 When installing: Make sure that the battery connector is attached firmly. Removing and replacing a FRU 1120 Keyboard bezel 1 M2 14 mm, flat-head, nylon-coated (2) Black 0.196 Nm ThinkPad Z61t 77 Removing and replacing a FRU 78 1130 Speaker assembly 1 M2 3 mm, flat-head, nylon-coated (4) Black 0.196 Nm ThinkPad Z61t 79 3 3 55 Removing and replacing a FRU 80 1140 SIM card slot 1 M2 3 mm, flat-head, nylon-coated (1) Black 0.196 Nm (2.0 kgfcm) ThinkPad Z61t 81 1150 Fan assembly 1 M2 5 mm, flat-head, nylon-coated (4) Black 0.196 Nm 82 Removing and replacing a FRU ThinkPad Z61t 83 1160 CPU 84 Removing and replacing a FRU 1170 Wireless WAN antenna (DIV) ThinkPad Z61t 85 1180 LCD assembly 1 M2 7 mm, flat-head, nylon-coated (2) Black 0.245 Nm (2.5 kgfcm) 86 Removing and replacing a FRU aa In step 3 , release the antenna cables from the cable guides. ThinkPad Z61t 87 4 M2 5 mm, flat-head, nylon-coated (2) Black 0.245 Nm (2.5 kgfcm) 88 1190 Base cover 1c 1b ThinkPad Z61t 89 (1) (2) Removing and replacing a FRU 90 b ThinkPad Z61t 91 a c d 1200 USB sub card with cable 92 Removing and replacing a FRU 1210 MG (Magnesium) frame ThinkPad Z61t 93 Remove the ac power jack cable a and the modem cable b . Removing and replacing a FRU 94 Remove the CPU support plate c . c ThinkPad Z61t 95 5 M2 3 mm, flat-head, nylon-coated (6) Black 0.196 Nm In step 9 , loosen the hex screws. (continued) Removing and replacing a FRU 96 1220 System board and PC Card/ExpressCard slot assembly ThinkPad Z61t 97 running. Removing and replacing a FRU 98 bc ThinkPad Z61t 99 d e Step Screw (quantity) Color Torque 2 M2 5 mm, flat-head, nylon-coated (4) Black 0.196 Nm Removing and replacing a FRU 100 2010 LCD front bezel ThinkPad Z61t 101 (continued) (1) (3) Removing and replacing a FRU 102 2020 Inverter card ThinkPad Z61t 103 2030 Bluetooth daughter card (BDC-2) 1 M2 5 mm, flat-head, nylon-coated (1) Black 0.196 Nm (2.0 kgfcm) 104 Removing and replacing a FRU ThinkPad Z61t 105 2040 Wireless WAN antenna cable (MAIN) or wireless LAN 3rd antenna cable 106 Removing and replacing a FRU When installing: In step 2, press the part indicated by the arrow until it snaps into place. ThinkPad Z61t 107 2050 Integrated camera 108 Removing and replacing a FRU 2060 LCD panel, LCD cable, and hinges ThinkPad Z61t 109 (continued) Removing and replacing a FRU 110 Remove the hinges a from the LCD panel. 7 M2 3 mm, small-head, nylon-coated (4) Silver 0.196 Nm ThinkPad Z61t Remove the LCD cable assembly b from the LCD panel. 2070 LCD rear cover and wireless LAN antenna cables 112 (continued) Removing and replacing a FRU Remove the LCD latches before you remove the antenna cables. (continued) ThinkPad Z61t When installing: Attache the latches as shown in this figure. (continued) 114 (continued) ThinkPad Z61t Wireless LAN antenna cable (MAIN: gray) Removing and replacing a FRU 116 Locations Front view ThinkPad Z61t Locations Rear view 118 Bottom view Locations Parts list Overall d a b c Parts list 120 No. FRU FRU no. RoHS ID ThinkPad Z61t 121 41W4842 R ** No. FRU FRU no. RoHS ID 41W4844 R N Parts list 122 No. FRU FRU no. RoHS ID ThinkPad Z61t 123 42R9957 R N No. FRU FRU no. RoHS ID Parts list 124 No. FRU FRU no. RoHS ID ThinkPad Z61t 125 41W1177 R ** 42T0835 R ** 42T0804 R ** Parts list 126 No. FRU FRU no. RoHS ID ThinkPad Z61t 127 42W7737 R N 42W7739 R N 12 Backup battery 92P1161 R ** Parts list 128 No. FRU FRU no. RoHS ID ThinkPad Z61t 129 13N5108 R * Parts list 130 No. FRU FRU no. RoHS ID ThinkPad Z61t 131 40Y8401 R ** 40Y8402 R ** No. FRU FRU no. RoHS ID Parts list 132 No. FRU FRU no. RoHS ID ThinkPad Z61t 133 No. FRU FRU no. RoHS ID 41W5181 R N 41W1202 R N Parts list 134 No. FRU FRU no. RoHS ID ThinkPad Z61t 135 41W1132 R N 41W1134 R N 41W1136 R N Parts list 136 No. FRU FRU no. RoHS ID ThinkPad Z61t 137 26R9554 R N 42R9954 R N LCD FRUs ab 138 c d 14.0-in. WXGA (200nit) TFT ID ThinkPad Z61t 139 41W4855 R N No. FRU FRU no. RoHS ID Parts list 140 No. FRU FRU no. RoHS ID ThinkPad Z61t 141 41V9781 R N 91P6954 R N 91P6953 R N Parts list 142 14.1-in. WXGA (185nit) TFT ID ThinkPad Z61t 143 41W4855 R N 41W4856 R N Parts list 144 No. FRU FRU no. RoHS ID ThinkPad Z61t 145 42W2172 R N 42W2173 R N 41V9758 R N Parts list 146 No. FRU FRU no. RoHS ID ThinkPad Z61t 147 91P7003 R N 91P7004 R N No. FRU FRU no. RoHS ID Parts list 148 14.1-in. WXGA+ (200nit) TFT ID ThinkPad Z61t 149 41W4855 R N 41W4856 R N Parts list 150 No. FRU FRU no. RoHS ID ThinkPad Z61t 151 42W2172 R N 42W2173 R N No. FRU FRU no. RoHS ID Parts list 152 No. FRU FRU no. RoHS ID ThinkPad Z61t 153 39T0497 R N 11 Clear plate kit 42W2145 R N Keyboard Parts list 154 Recovery discs Windows XP Professional CDs ThinkPad Z61t 155 Parts list 156 Windows XP Home Edition CDs ThinkPad Z61t 157 ID Windows Vista Business (32 bit) DVDs 158 ID Parts list Miscellaneous parts ID ThinkPad Z61t 159 41W4834 R N 41W4833 R N Base miscellaneous parts: v Rubber foot v Insulation sheet v Gasket Parts list 160 AC adapters ID ThinkPad Z61t 161 Common parts list Tools Power cords 162 (Longwell) P/N (Volex) RoHS ID For 3-pin power cords: Notices ThinkPad Z61t 163 Notices Trademarks Notices 164

IBM Related service information , 26

Models: MT 8747 MT 8749 MT 9440 MT 9441 MT 9442 MT 9443 MT 9448