Lenovo N100 Checkout guide , 28

6(-)

5

4 1(+)2(+)

3 7(-)

Terminal Voltage (V dc)

1 + 0 to + 12.6

7 Ground (−)

3. If the voltage is less than +11.0 V dc, the battery pack has been discharged.

Note: Recharging will take at least 3 hours, even if the indicator does not turn

on.

If the voltage is still less than +11.0 V dc after recharging, replace the battery.

4. If the voltage is more than +11.0 V dc, measure the resistance between battery

terminals 4 and 7. The resistance must be 4 to 30 K .

If the resistance is not correct, replace the battery pack. If the resistance is

correct, replace the system board.

Checkout guide

28 MT 0689, 0690, 0768

Contents

Main Lenovo 3000 N100 Hardware Maintenance Manual March 2006 This manual supports: Lenovo 3000 N100 (MT 0689, 0690, 0768) Page Page Page Contents Introduction . . . . . . . . . . . . .1 Copyright Lenovo 2006 General descriptions . . . . . . . . .17 Lenovo 3000 N100 . . . . . . . . . .29 Page Introduction About this manual Copyright Lenovo 2006 servicing FRUs: Strategy for replacing FRUs Strategy for replacing a hard disk drive Always try to run a low-level format before replacing a hard disk drive. 2 Important notice for replacing a system board How to use error messages Using PC Entitlement Warehouse (PEW) Introduction 3 Using eSupport Using the HMM Important information about replacing RoHS compliant FRUs 4 Current or original part Replacement FRU Current or original part Important service information Diskette compatibility matrix Introduction 5 drive Diskette capacity Safety notices: multilingual translations Safety notices 6 Safety notice 3 Introduction 7 Safety notice 4 Safety notices 8 Safety notice 5 Safety notice 6 Introduction 9 Safety notice 7 Safety notice 8 Safety notices 10 Safety information Introduction Observe the following rules when working on electrical equipment. General safety Electrical safety Safety information 12 Safety inspection guide Introduction 13 Handling devices that are sensitive to electrostatic discharge 14 Grounding requirements Safety information Laser compliance statement Introduction 15 CAUTION: Laser compliance statement Laser compliance statement 16 General descriptions Copyright Lenovo 2006 your particular computer. Read this first Before you go to the checkout guide, be sure to read this section. Read this first 18 Related service information General descriptions 19 Service Web site Restoring the pre-installed system Recovery to Factory Contents by using Product Recovery CDs Passwords 20 How to remove the power-on password Related service information How to remove the hard-disk password the Enter New Password field blank, and press Enter twice. Power management 22 Screen blank mode Standby mode Related service information Hibernation mode General descriptions 23 Checkout guide 24 Testing the computer Creating the PC-Doctor diagnostics diskette Checkout guide The options on the test menu are as follows: Detecting system information with PC-Doctor PC-Doctor can detect the following system information: 26 Hardware Info Utility Checking operational charging Checking the battery pack 6(-) 5 4 1(+)2(+) 7(-) 3 Checkout guide 28 Lenovo 3000 N100 Copyright Lenovo 2006 Product overview 30 (continued) Processor v Intel Specifications v Windows XP Professional v Windows XP Home Edition Status indicators The system status indicators show the status of the computer, as follows: 32 (continued) R FRU tests The following table shows the test for each FRU. Fn key combinations 34 Product overview Symptom-to-FRU index Lenovo 3000 N100 35 Numeric error codes 0200 Failure Fixed Disk 1. Keyboard. 2. System board. 0220 Monitor type does not match CMOSRun SETUP Symptom-to-FRU index 36 Error messages Lenovo 3000 N100 37 Device Error. 1. The device you want to boot from. Beep symptoms No-beep symptoms 38 Symptom-to-FRU index LCD-related symptoms Lenovo 3000 N100 39 No beep, power-on indicator on, and a blank LCD during POST. LCD assembly. Intermittent problems 40 Undetermined problems Symptom-to-FRU index FRU replacement notices Lenovo 3000 N100 41 (Cross-section) Screw notices 90degrees more Restoring the serial number of the system unit 42 Retaining the UUID Reading or writing the ECA information FRU replacement notices Lenovo 3000 N100 43 Removing and replacing a FRU 44 Removing and replacing a FRU 1010 Battery pack Lenovo 3000 N100 45 1020 Hard disk drive slot cover For access, remove this FRU: 46 1 M2.5 4 mm, flat-head, nylon-coated (2) Silver 0.392 Nm 1030 Hard disk drive 1040 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: v 1010 Battery pack on page 45 Lenovo 3000 N100 47 1 M2 4 mm, flat-head, nylon-coated (2) Black 0.245 Nm 1050 DIMM slot cover For access, remove this FRU: 48 1060 DIMM Removing and replacing a FRU 1070 Optical drive Lenovo 3000 N100 49 For MT0768 1080 Thermal module slot cover and fan For access, remove this FRU: 50 1 M2.5 4 mm, flat-head, nylon-coated (2) Silver 0.392 Nm 3 M2.5 4 mm, flat-head, nylon-coated (3) Silver 0.392 Nm 1090 Thermal module 1 CPU thermal screw, nylon-coated (4) Silver 0.392 Nm Lenovo 3000 N100 51 Removing and replacing a FRU 52 1100 CPU Lenovo 3000 N100 53 b 1110 Cover, strip (E cover) Removing and replacing a FRU 54 1120 Keyboard For access, remove these FRUs in order: v 1010 Battery pack on page 45 Lenovo 3000 N100 55 1 M2.5 3 mm, flat-head, nylon-coated (2) Black 0.392 Nm In step 2 , unlatch the keyboard. Removing and replacing a FRU 56 1130 Function board 1 M2.5 3 mm, flat-head, nylon-coated (2) Black 0.392 Nm Lenovo 3000 N100 57 1140 LCD unit 1 M2.5 13 mm, flat-head, nylon-coated (2) Black 0.392 Nm 58 Removing and replacing a FRU When installing: Make sure that the connectors 4, 5, and 6 are attached firmly. (continued) Lenovo 3000 N100 59 60 1150 Top cover assembly (C cover) with speakers and Bluetooth daughter card (BDC) 1 M2.5 6 mm, flat-head, nylon-coated (1) Black 0.392 Nm Lenovo 3000 N100 61 For MT 0689, 0690 Note: Steps 2a and 3a are only for MT 0689 and 0690. 2a2a Removing and replacing a FRU 62 For MT 0768 Note: Steps 2b and 3b are only for MT 0768. 2b 2b Lenovo 3000 N100 63 (continued) 2b 2b Removing and replacing a FRU 64 1 M2 4 mm, flat-head, nylon-coated (2) Black 0.245 Nm Lenovo 3000 N100 65 1160 USB/Audio connector card Removing and replacing a FRU 66 1170 VGA connector card 1 M2 3 mm, flat-head, nylon-coated (1) Black 0.245 Nm Lenovo 3000 N100 67 1180 System board, MDC, PC Card slot, and bottom cover assembly (D cover) 68 Note: When installing: Make sure that the connectors are attached firmly. (continued) Removing and replacing a FRU Lenovo 3000 N100 69 To remove the MDC, do as follows: 1 M2.5 3 mm, flat-head, nylon-coated (2) Silver 0.392 Nm 1 M2 4 mm, flat-head, nylon-coated (4) Silver 0.245 Nm 70 2010 LCD front bezel (B cover) For access, remove this FRU: Lenovo 3000 N100 71 1a Note: Screws 1a are only for MT0768. 2020 Inverter card For access, remove these FRUs in order: v 1010 Battery pack on page 45 72 1 M2.5 5 mm, flat-head, nylon-coated (1) Black 0.392 Nm When installing: Make sure that connectors 3 and 4 are attached firmly. 2030 LCD panel, LCD cable, and hinges Lenovo 3000 N100 73 (continued) Note: Screws 1a are only for MT0689 and MT0690. Remove the hinges ( a ) from the LCD panel. Removing and replacing a FRU 74 2040 Camera and LCD rear cover assembly (A cover) Lenovo 3000 N100 75 1 M2.5 4 mm, flat-head, nylon-coated (2) Black 0.392 Nm Locations Front view 76 14 13 12 Rear view Lenovo 3000 N100 77 Bottom view Locations Parts list Overall c 78 b a (continued) No. FRU FRU no. RoHS ID 80 No. FRU FRU no. RoHS ID Lenovo 3000 N100 81 ID 41W5181 R N CPU assembly, Intel Celeron Core processor 420 (1.6 GHz) (533 MHz) AC adapters LCD FRUs 14.1-in. WXGA TFT 82 ID Parts list 15.4-in. WXGA TFT ID Lenovo 3000 N100 83 15.4-in. WSXGA+ TFT Keyboard Parts list 84 Recovery CDs Windows XP Professional Windows XP Home Edition Parts list 86 Miscellaneous parts ID Lenovo 3000 N100 87 41W5229 R N 41W5230 R N Common parts list Tools 88 Parts list Power cords For 3-pin power cords: Notices 90 Notices Trademarks Lenovo 3000 N100 91 Notices