Lenovo G41 manuals
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When we buy new device such as Lenovo G41 we often through away most of the documentation but the warranty.
Very often issues with Lenovo G41 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Laptop Lenovo G41 is responsible for and what options to choose for expected result.
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164 pages 3.84 Mb
3 Contents Lenovo 2005. Portions IBM Corp. 2005. iii 4 iv5 About this manual Lenovo 2005. Portions IBM Corp. 2005. 1 7 Introduction29 General descriptionsThe 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 firstBefore you go to the checkout guide, be sure to read this section. What to do first 32 Related service informationThis section provides information about the following: v Service Web site v v v 28 Service Web site Restoring the preloaded system 34 Passwords37 Power managementGeneral descriptions 33 Screen blank mode Standby mode Hibernation modeIn hibernation mode, the following occurs: v stored on the hard disk. v 38 34 39 Checkout guideTesting the computerThe ThinkPad computer has a test program called PC-Doctor 40 36v v v v v v v v v v v v v v v v v v v v v Checkout guide 41 Detecting system information with PC-Doctor42 Power system checkout38 Checking the ac adapterPin Voltage (V dc) 1 Vcc_+ 16V 2 Ground 3 Vcc_+ 16V 4 Ground Checkout guide v page 45. Note: a defect. 43 Checking operational chargingChecking the battery packTerminal Voltage (V dc) 1 + 0 to + 12.6 (Li-ion) 5 Ground 44 Checking the backup battery40Terminal Voltage (V dc) + +2.5 to +3.2 - Ground v by connecting the ac adapter to the computer for one hour. v battery. 47 ThinkPad G40, G41 Lenovo 2005. Portions IBM Corp. 2005. 43 48 4449 Product overviewThis section presents the following product-unique information: v v v v ThinkPad G40, G41 45 (continued) SpecificationsThe following table lists the specifications of the ThinkPad G40, G41 series: 50 46 51 Status indicatorsThe system status indicators show the status of the computer, as follows: ThinkPad G40, G41 47 1 3 274 5 61 Wireless status Note: models. (continued) 52 4853 FRU testsThe following table shows the test for each FRU. ThinkPad G40, G41 49 (continued)Product overview FRU Applicable test CD-ROM or DVD drive 54 5055 Fn key combinationsThinkPad G40, G41 51combination Product overview 56 Symptom-to-FRU indexNumeric error codes0175 Bad CRC1, stop POST taskThe EEPROM checksum is not correct. System board. 0177 Bad SVP data, stop POST task. System board. 0182 Bad CRC2. Enter BIOS Setup and load Setup Defaults. Run BIOS Setup Utility and Load Setup Defaults Symptom-to-FRU index 57 ThinkPad G40, G41 5358 54 60 Error messages62 Beep symptomsNo-beep symptoms 63 LCD-related symptomsThinkPad G40, G41 59No beep, power-on indicator on, and a blank LCD during POST. System board. v v v adjusted. v adjusted. 1. Reseat the LCD connectors. 2. LCD assembly. 3. System board. v v v v LCD assembly. Symptom-to-FRU index 64 Intermittent problemsUndetermined problems 65 FRU replacement noticesThinkPad G40, G41 61 (Cross-section) Screw notices90degrees more 180degrees more 66 Retaining serial numbersThis section includes the following descriptions: v v v 62 Restoring the serial number of the system unit 67 Retaining the UUIDReading or writing the ECA information 69 Removing and replacing a FRU70 1010 Battery pack71 1020 Hard disk driveThinkPad G40, G41 67 (continued) Note:1 HDD M3 4 mm, Black (1) Note: Use a 2.5-mm Allen wrench to remove the security screw. Removing and replacing a FRU 72 6873 1030 DIMM doorFor access, remove this FRU: ThinkPad G40, G41 69 Note:1 M2.5 captive screw (2) Nm 0.3 Nm ( 3.2 kgfcm) Removing and replacing a FRU 74 1040 DIMMFor access, remove these FRUs, in order: v 70 75 1050 Modem daughter card (MDC)For access, remove this FRU: v ThinkPad G40, G41 711 M2.5 x 5 mm, Silver (2) Nm 0.3 Removing and replacing a FRU 76 1060 Backup battery77 1070 KeyboardFor access, remove these FRUs, in order: ThinkPad G40, G41 73 (continued)1 M2.5 7 mm, Black (2) Nm 0.3 Removing and replacing a FRU 78 7479 1080 Middle coverFor access, remove these FRUs, in order: v ThinkPad G40, G41 751 M2.5 8 mm, Black (1) Nm 0.3 Note: cover may be a security or tamper-proof screw for 802.11a/b wireless models.Removing and replacing a FRU 80 1090 Hinge cover81 1095 FDD assemblyFor access, remove these FRUs, in order: v ThinkPad G40, G41 771 M2.5 5 mm, Silver (1) 0.3 Nm Removing and replacing a FRU 82 1100 Blank bezel FDD assemblyFor access, remove these FRUs, in order: v 781 M2.0 4 mm, Silver (2) 0.3 Nm When Installing: go under the clasps on the FDD bracket.Removing and replacing a FRU 83 1110 VGA heatsink assembly For access, remove these FRUs, in order: v ThinkPad G40, G41 791 M2.0 4 mm, Silver (3) 0.3 Nm Removing and replacing a FRU 84 1120 VGA card assembly804 M2.0 4 mm, Silver (1) 0.3 Nm Removing and replacing a FRU 85 1130 CD-ROM/DVD drive and ODD bracketFor access, remove these FRUs, in order: v ThinkPad G40, G41 811 M2.5 stud Phillips 5 mm, Silver (1) 0.3 Nm Removing and replacing a FRU 86 1140 Mini PCI adapter87 1150 PC card slot assemblyFor access, remove these FRUs, in order: v v v v v v 81 v ThinkPad G40, G41 83 (continued)1 M2.5 8 mm, Black (2) 0.3 Nm Removing and replacing a FRU 88 8490 1160 LCD and Keyboard bezel assemblyFor access, remove these FRUs, in order: v v v v 86(continued)1 M2.5 7 mm, Black (2) 0.3 Nm Removing and replacing a FRU 91 Non-FDD models: models is as shown below.4 M 2.5 7 mm, Black (9) 0.3 Nm (3.2 kgfcm) 5 M 2.5 3 mm, Silver (1) 0.3 Nm ThinkPad G40, G41 87 (continued)Removing and replacing a FRU 92 A93 1170 LCD assemblyFor access, remove these FRUs, in order: v v v ThinkPad G40, G41 89 (continued)1 M2.5 7 mm, Black (2) 0.3 Nm Removing and replacing a FRU Non-FDD models: models is as shown below. 94 904 M 2.5 7 mm, Silver (4) 0.3 Nm (continued)Removing and replacing a FRU 95 A96 1180 Keyboard bezelFor access, remove these FRUs, in order: v v v v v v 92 98 1190 Fan assembly100 2000 Fan (CPU 3 GHz) and CPU fixture102 2010 CPU103 2020 CD-ROM/DVD drive bracketFor access, remove these FRUs, in order: v v v v v ThinkPad G40, G41 991 M2.5 5 mm, Silver (3) 0.3 Nm Removing and replacing a FRU 104 2030 FDD bracketFor access, remove these FRUs, in order: v v v v v v v 1001 M2.5 5 mm, Silver (3) 0.3 Nm (3.2 kgfcm) 2 M2.5 3 mm, Silver (1) 0.3 Nm Removing and replacing a FRU 105 2040 System board106 2050 Lower case assembly107 2060 Modem cable108 2070 PC card slot assembly109 2080 LCD front bezelThinkPad G40, G41 1051 M2.5 5 mm, Black (2) 0.3 Nm When installing: LCD front bezel are firmly attached to the LCD cover.Removing and replacing a FRU 110 2090 Inverter cardFor access, remove these FRUs, in order: v 1061 M2.5 5 mm, Silver (2) 0.3 Nm Removing and replacing a FRU 111 3000 Speaker assemblyFor access, remove these FRUs, in order: v v v ThinkPad G40, G41 1071 M2.5 5 mm, Silver (1) 0.3 Nm When installing: and aligned to the left of the speaker.Removing and replacing a FRU 112 3010 LCD cable assembly114 3020 Wireless antenna and rear cover115 3030 LCD panel and hinge assemblyFor access, remove these FRUs, in order: v v v v v v v ThinkPad G40, G411 M2.0 4 mm, Silver (4) 0.25 Nm (2.5 kgfcm) Removing and replacing a FRU 116 Locations Front view117 Rear view118 Bottom view119 Parts list G40, G41 series143 Overall150 LCD FRUs146 151 14.1 in. TFTThinkPad G40, G41 14726R8027 LCD Bezel ASM - Wireless LED (*1) refer to item 24 15 in. TFT26R8026 LCD Bezel ASM - Wireless LED (*1) refer to item 24 Parts list 152 148 153 Keyboard154 Recovery CDs150 Windows XP Home Edition (for G40) Windows XP Home Edition (for G41) 155 Windows XP Professional (for G40)Windows XP Professional is preinstalled as the operating system in some models. ThinkPad G40, G41 151 156 Windows XP Professional (for G41)Windows XP Professional is preinstalled as the operating system in some models. 152 Windows 2000 (for G40)Windows 2000 is preinstalled as the operating system in some models. ThinkPad G40, G41 153 157 Miscellaneous partsAC adapters Telephone cable 158 Optional FRUsAll Optional FRUs are classified as Tier 1 CRUs (customer replaceable units). 154 Common parts listTools 159 Power cordsThinkPad G40, G41 155Canada, U.S. 13H5264 Japan 74P4331 Argentina 36L8870 Brazil 49P2095 For 3-pin power cords: 160 Notices162 Trademarks
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