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Lenovo MT 1871, R50p, R51 Series ThinkPad R50/R50p and R51 Series 65

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3. To write ECA information, select 1. Write ECA/rework

number from EEPROM, and follow the instruction.

4. To write box build date, select 4. Write box build date

from EEPROM, and follow the instruction on the

screen.

If the system board is being replaced, try to read the ECA

information from the old system board and transfer the

information to the new system. If the system board is

inoperable, this will not be possible.

FRU replacement notices

ThinkPad R50/R50p and R51 Series 65

Contents

Main ThinkPad Computer Hardware Maintenance Manual 1836, 1840, 1841, 2883, 2887, 2888, 2889, 2894, 2895) Page Contents Lenovo 2005. Portions IBM Corp. 2005. iii iv About this manual This manual contains service and reference information for ThinkPad Lenovo 2005. Portions IBM Corp. 2005. 1 Page Introduction Important service information Lenovo 2005. Portions IBM Corp. 2005. 3 Strategy for replacing FRUs Strategy for replacing a hard disk drive How to use error messages Diskette compatibility matrix Diskette capacity Safety notices: multilingual translations Important service information Safety notice 1 Introduction 5 Safety notice 2 6 (continuation of safety notice 2) Introduction 7 Safety notice 3 8 (continued) Introduction 9 Safety notice 4 10 (continuation of safety notice 4) Introduction Safety notice 5 12 Safety notice 6 Introduction 13 Safety notice 7 14 Safety notice 8 Introduction 15 Safety information 16 General safety Introduction 17 Electrical safety Observe the following rules when working on electrical equipment. 18 Safety inspection guide Introduction 19 Handling devices that are sensitive to electrostatic discharge 20 Use the round ground prong of the ac plug on ac-operated computers. Grounding requirements Introduction 21 Laser compliance statement 22 CAUTION: Introduction 23 24 General descriptions The desciptions in this chapter apply to any ThinkPad model that has the PC-Doctor Lenovo 2005. Portions IBM Corp. 2005. 25 program. Some descriptions might not apply to your particular computer. Read this first 26 Read this first Related service information This section provides information about the following: v Service Web site v v v General descriptions 27 Service Web site Restoring the pre-installed system Passwords 28 General descriptions 29 How to remove the power-on password How to remove the hard-disk password 30 Page Power management 32 Screen blank mode Standby mode Hibernation mode General descriptions 33 Checkout guide 34 Testing the computer Creating the PC-Doctor diagnostics diskette General descriptions 35 The options on the test menu are as follows: 36 v v v v v v v v v v v v v v v v v v v v v v v WirelessLAN Usethecursor keys and ESC to move in menus. PressENTERtoselect. Detecting system information with PC-Doctor Hardware Info Utility Power system checkout Checking the ac adapter 38 (16-10V) Pin Voltage (V dc) 1 +15.5 to +17.0 2 Ground Checking operational charging Checking the backup battery Checkout guide Red (+) Black (-) Wire Voltage (V dc) Red +2.5 to +3.2 Black Ground 40 v v v replacement, replace the system board. Checkout guide ThinkPad R50/R50p and R51 Series Lenovo 2005. Portions IBM Corp. 2005. 41 42 Product overview This section presents the following product-unique information: v v v v ThinkPad R50/R50p and R51 Series 43 (continued) Specifications 44 (continued) ThinkPad R50/R50p and R51 Series 45 (continued) 46 ThinkPad R50/R50p and R51 Series 47 Status indicators The system status indicators show the status of the computer, as follows: 48 2 7 8 9 (continued) ThinkPad R50/R50p and R51 Series 49 R Product overview Indicator Meaning 8 Standby FRU tests The following table shows the test for each FRU. 50 (continued) Product overview ThinkPad R50/R50p and R51 Series 51 Product overview Fn key combinations 52 (continued) combination Product overview ThinkPad R50/R50p and R51 Series 53 Product overview Symptom-to-FRU index 54 Numeric error codes 0175 Bad CRC1, stop POST taskThe EEPROM checksum is not correct. System board. 0176 System SecurityThe system has been tampered with. ThinkPad R50/R50p and R51 Series 55 56 ThinkPad R50/R50p and R51 Series 57 Error messages 58 Beep symptoms No-beep symptoms ThinkPad R50/R50p and R51 Series 59 LCD-related symptoms 60 Note: (white or color.) A dark dot means a pixel is always off (black color.) No beep, power-on indicator on, and a blank LCD during POST. System board. v v v adjusted. v adjusted. Intermittent problems ThinkPad R50/R50p and R51 Series 61 Undetermined problems FRU replacement notices 62 (Cross-section) Screw notices 90degrees more Retaining serial numbers ThinkPad R50/R50p and R51 Series 63 This section includes the following descriptions: v v v Restoring the serial number of the system unit Retaining the UUID 64 Reading or writing the ECA information ThinkPad R50/R50p and R51 Series 65 Removing and replacing a FRU 66 1010 Battery pack ThinkPad R50/R50p and R51 Series 67 1020 Ultrabay Enhanced device 68 1030 Hard disk drive ThinkPad R50/R50p and R51 Series 69 (continued) Note: Removing and replacing a FRU 70 1040 DIMM (optional) For access, remove this FRU: ThinkPad R50/R50p and R51 Series 71 Note: 1050 Keyboard For access, remove this FRU: 72 (continued) 1 1a When installing: Make sure that the connector 4 is ThinkPad R50/R50p and R51 Series 73 74 ThinkPad R50/R50p and R51 Series 75 b b 1060 DIMM (standard) For access, remove these FRUs in order: v 76 1070 Modem daughter card (MDC/MDC-2) For access, remove these FRUs in order: v ThinkPad R50/R50p and R51 Series 77 Turn the card over 3 , and detach the modem connector 4. 78 1080 Bluetooth/Modem daughter card (BMDC/BMDC-2) For access, remove these FRUs in order: v ThinkPad R50/R50p and R51 Series 79 80 1090 Keyboard bezel For access, remove these FRUs in order: v ThinkPad R50/R50p and R51 Series 81 (continued) 1 1 82 M2 12 mm, bind-head, nylon-coated (3) (2.5 kgfcm) 4 4 M2 12 mm, bind-head, nylon-coated (2) (2.5 kgfcm) 5 5 ThinkPad R50/R50p and R51 Series 83 3. Attach the touch pad connector 4. 84 1100 Mini PCI adapter For access, remove these FRUs in order: v v v ThinkPad R50/R50p and R51 Series 85 (continued) 86 MAIN ThinkPad R50/R50p and R51 Series 87 AUX 88 MAIN AUX 1110 Fan assembly For access, remove these FRUs in order: v v v ThinkPad R50/R50p and R51 Series 89 (Bottom view of the fan assembly) 1 M2 10 mm, flat-head, nylon-coated (3) 1120 CPU 90 1130 Backup battery For access, remove these FRUs in order: v v v ThinkPad R50/R50p and R51 Series 91 When installing: 2 is firmly attached. 1140 Speaker assembly 92 In step 3 , release the speaker cables from the cable guide a . ThinkPad R50/R50p and R51 Series 93 1150 IEEE 1394 cable For access, remove these FRUs in order: v v v v v 94 (continued) Note Some models do not have the IEEE 1394 cable. Before remove the IEEE 1394 cable, remove bracket structure 5 . (continued) Removing and replacing a FRU ThinkPad R50/R50p and R51 Series 95 96 1160 PC Card slots assembly For access, remove these FRUs in order: v v v v v v ThinkPad R50/R50p and R51 Series 97 1 M2 4 mm, flat-head, nylon-coated (2) Removing and replacing a FRU 1170 Ultrabay Enhanced shield kit For access, remove these FRUs in order: v v v v 98 (continued) Note: For the other models, skip this step. 2 a 3 ThinkPad R50/R50p and R51 Series 99 (continued) 2 M2 12 mm, bind-head, nylon-coated (1) Removing and replacing a FRU 100 When installing: Make sure that the connectors 5 are firmly attached. (continued) ThinkPad R50/R50p and R51 Series 101 For models with M9-32 or M10 GL-128 video chip: 102 For models with M7-32 video chip: (continued) 7 M2 12 mm, bind-head, nylon-coated (2) Removing and replacing a FRU (continued) Removing and replacing a FRU ThinkPad R50/R50p and R51 Series 103 11 11 12 13 104 14 1180 LCD assembly For access, remove these FRUs in order: v v v v (BMDC/BMDC-2) on page 79 v v ThinkPad R50/R50p and R51 Series 105 (continued) 1 M2.5 4.8 mm, bind-head, nylon-coated (4) 106 Removing and replacing a FRU Step Screw (quantity) Color Torque 5 M2 6 mm, bind-head, nylon-coated (1) (continued) (2.5 kgfcm) 7 M2 6 mm, bind-head, nylon-coated (1) ThinkPad R50/R50p and R51 Series 107 Removing and replacing a FRU 108 1190 VGA and Ultrabay Enhanced device eject button cable For access, remove these FRUs in order: v v v v v v v ThinkPad R50/R50p and R51 Series 109 2 M2 4 mm, flat-head, nylon-coated (1) When installing: Make sure that the connector 1 is firmly attached. (continued) 110 a ThinkPad R50/R50p and R51 Series b 4 Hex stud (2) Silver 0.392 Nm Removing and replacing a FRU 1200 System board, interposer card, and base cover 112 (continued) ThinkPad R50/R50p and R51 Series 114 (continued) ThinkPad R50/R50p and R51 Series 116 5 Hex stud (2) Silver 0.392 Nm (4 kgfcm) 6 M2.5 3 mm, flat-head, nylon-coated (1) ThinkPad R50/R50p and R51 Series Removing and replacing a FRU 118 b a 2010 LCD front bezel ThinkPad R50/R50p and R51 Series (continued) cap Screw (quantity) Color Torque 1 120 2020 Inverter card 122 When installing: in this figure. ThinkPad R50/R50p and R51 Series 123 (continued) 4a 124 4a 5 M2 4 mm, bind-head, nylon-coated (2) ThinkPad R50/R50p and R51 Series 125 (continued) Removing and replacing a FRU Remove the antenna assembly ( a ). 126 Remove the hinges ( b ) from the LCD assembly. (continued) (continued) ThinkPad R50/R50p and R51 Series 127 128 ThinkPad R50/R50p and R51 Series 129 130 2. Route the antenna cables as in the following drawings: (continued) d 3. Route the cables as in the figure below. ee ThinkPad R50/R50p and R51 Series 131 3010 ThinkPad Dock II PCI cover (Bottom view) 132 3020 ThinkPad Dock II top cover (Rear view) ThinkPad R50/R50p and R51 Series 133 (continued) 1 M2.5 4.8 mm (3) 0.392 Nm 134 (continued) ThinkPad R50/R50p and R51 Series 135 Locations Front view 136 Page Rear view 138 12 R 3 Bottom view ThinkPad R50/R50p and R51 Series 139 Locations Parts list Overall 140 ID a- j See Miscellaneous parts on page 217. 1 LCD unit (see LCD FRUs on page 188). N ThinkPad R50/R50p and R51 Series 141 (continued) Parts list 142 (continued) ThinkPad R50/R50p and R51 Series 143 144 (continued) ThinkPad R50/R50p and R51 Series 145 146 (continued) ThinkPad R50/R50p and R51 Series 147 148 (continued) ThinkPad R50/R50p and R51 Series 149 150 (continued) ThinkPad R50/R50p and R51 Series 151 152 No. FRU P/N CRU ID 6 128-MB DDR SDRAM SO DIMM (PC2700) OP v v (continued) ThinkPad R50/R50p and R51 Series 153 31P9831 * Parts list 154 (continued) ThinkPad R50/R50p and R51 Series 155 156 (continued) ThinkPad R50/R50p and R51 Series 157 158 (continued) ThinkPad R50/R50p and R51 Series 159 160 (continued) ThinkPad R50/R50p and R51 Series 161 162 (continued) 13R2701 N ThinkPad R50/R50p and R51 Series 163 14.1-in. Korea v v v 13R2697 N 164 (continued) ThinkPad R50/R50p and R51 Series 165 166 (continued) Parts list ThinkPad R50/R50p and R51 Series 167 168 Parts list (continued) ThinkPad R50/R50p and R51 Series 169 170 (continued) Parts list ThinkPad R50/R50p and R51 Series 171 172 (continued) ThinkPad R50/R50p and R51 Series 173 174 (continued) ThinkPad R50/R50p and R51 Series 175 176 (continued) ThinkPad R50/R50p and R51 Series 177 178 93P4170 N Parts list (continued) 93P4170 N ThinkPad R50/R50p and R51 Series 179 Parts list 180 (continued) ThinkPad R50/R50p and R51 Series 181 182 93P4202 N System board assembly, M7-32, 10/100 Ethernet v 91P7332 N Parts list (continued) ThinkPad R50/R50p and R51 Series 183 184 (continued) ThinkPad R50/R50p and R51 Series 185 186 91P6829 N Parts list ThinkPad R50/R50p and R51 Series 187 91P6829 N Parts list LCD FRUs k l 188 n m 14.1-in. XGA TFT (continued) ThinkPad R50/R50p and R51 Series 189 190 (continued) ThinkPad R50/R50p and R51 Series 191 192 (continued) ThinkPad R50/R50p and R51 Series 193 194 15.0-in. XGA TFT (continued) ThinkPad R50/R50p and R51 Series 195 196 (continued) ThinkPad R50/R50p and R51 Series 197 198 (continued) ThinkPad R50/R50p and R51 Series 199 200 15.0-in. SXGA+ IPS TFT (continued) ThinkPad R50/R50p and R51 Series 201 202 (continued) ThinkPad R50/R50p and R51 Series 203 204 15.0-in. UXGA IPS TFT ThinkPad R50/R50p and R51 Series 205 15.0-in. QXGA IPS TFT AC adapters 206 Keyboard ThinkPad R50/R50p and R51 Series 207 Table 2. Keyboards for 14.1-in. LCD models 208 Recovery CDs For Windows XP Professional (R50/R50p series) ThinkPad R50/R50p and R51 Series 209 Parts list For Windows XP Professional (R51 series) 210 ThinkPad R50/R50p and R51 Series 211 212 ThinkPad R50/R50p and R51 Series 213 For Windows XP Home Edition (R50/R50p series) 214 For Windows XP Home Edition (R51 series) ThinkPad R50/R50p and R51 Series 215 Parts list 216 Parts list Miscellaneous parts (continued) ThinkPad R50/R50p and R51 Series 217 218 (continued) ThinkPad R50/R50p and R51 Series 219 220 Optional FRUs ThinkPad R50/R50p and R51 Series 221 Parts list Common parts list Tools 222 Power cords (system) ID Canada, U.S. 13H5264 * Japan 74P4331 Argentina 36L8870 Brazil 49P2095 Power cords (ThinkPad Dock and ThinkPad Dock II) ThinkPad R50/R50p and R51 Series 223 Notices 224 Notices Notices ThinkPad R50/R50p and R51 Series 225 Trademarks 226